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You searched for: Subject term X-ray photoelectron spectroscopy Remove constraint Subject term: X-ray photoelectron spectroscopy
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1. (0 2 0)-Textured tungsten trioxide nanostructure with enhanced photoelectrochemical activity

Author:
Hyun Soo Han; Woosung Park; Sung Won Hwang; Hyunkyu Kim; Yelyn Sim; Subramani Surendran; Uk Sim; In Sun Cho
Source:
Journal of catalysis 2020 v.389 pp. 328-336
ISSN:
0021-9517
Subject:
X-ray photoelectron spectroscopy; electric current; electrochemistry; hydrogen; nanomaterials; oxygen; pH; photochemistry; photoelectrodes; temperature; texture; tungsten oxide; ultraviolet-visible spectroscopy
Abstract:
... Texturing, i.e., preferentially oriented deposition of a film with a specific crystallographic direction, enables the manipulation of the charge transport properties and surface reactivity of photoelectrodes for solar water-splitting. The advancement of solar water-splitting systems under neutral conditions is a vital strategy to reduce the economic and ecological traits of the prevailing strong a ...
DOI:
10.1016/j.jcat.2020.06.012

2. (00l)-Facet-Exposed Planelike ABi2Nb2O9 (A = Ca, Sr, Ba) Powders with a Single-Crystal Grain for Enhancement of Photocatalytic Activity

Author:
Yifeng Zhang; Jing Yuan; Huihua Gong; Yue Cao; Kewei Liu; Hongmei Cao; Hongjian Yan; Jianguo Zhu
Source:
ACS sustainable chemistry & engineering 2018 v.6 no.3 pp. 3840-3852
ISSN:
2168-0485
Subject:
X-ray diffraction; X-ray photoelectron spectroscopy; geometry; hydrogen production; irradiation; nanoparticles; oxidation; oxygen production; photocatalysis; photocatalysts; photoluminescence; platinum; powders; reflectance spectroscopy; scanning electron microscopy; slabs; temperature; transmission electron microscopy
Abstract:
... (00l)-facet-exposed planelike ABi₂Nb₂O₉ (A = Ca, Sr, Ba) powders with a single-crystal grain were obtained successfully by the molten salt method. The planelike grains were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, diffuse reflectance spectroscopy, photoluminescence spectroscopy, and X-ray photoelectron spectroscopy. With modification by pl ...
DOI:
10.1021/acssuschemeng.7b04181

3. (De)Lithiation Mechanism of Li/SeSx (x = 0–7) Batteries Determined by in Situ Synchrotron X-ray Diffraction and X-ray Absorption Spectroscopy

Author:
Cui Yanjie; Abouimrane Ali; Lu Jun; Bolin Trudy; Ren Yang; Weng Wei; Sun Chengjun; Maroni Victor A.; Heald Steve M.; Amine Khalil
Source:
Journal of the American Chemical Society 2013 v.135 no.21 pp. 8047-8056
ISSN:
1520-5126
Subject:
X-ray absorption spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; batteries; composite materials; dielectric spectroscopy; electrodes; electrolytes; energy; lithium; phase transition; selenium; transportation
Abstract:
... Electrical energy storage for transportation has gone beyond the limit of converntional lithium ion batteries currently. New material or new battery system development is an alternative approach to achieve the goal of new high-energy storage system with energy densities 5 times or more greater. A series of SeSₓ–carbon (x = 0–7) composite materials has been prepared and evaluated as the positive el ...
DOI:
10.1021/ja402597g

4. (Fe₁₋ₓNiₓ)₃N nanoparticles: the structure, magnetic and photocatalytic properties for water splitting

Author:
Xiang Lei; Peng Zhang; Xiaobai Wang; Wei Wang; Hua Yang
Source:
RSC advances 2016 v.6 no.50 pp. 44641-44645
ISSN:
2046-2069
Subject:
X-ray diffraction; X-ray photoelectron spectroscopy; catalysts; irradiation; magnetic properties; magnetism; nanoparticles; photocatalysis; sol-gel processing; transmission electron microscopes; transmission electron microscopy
Abstract:
... Fe₃N and (Fe₁₋ₓNiₓ)₃N nanoparticles (NPs) were prepared via a simple sol–gel method. The structures, morphology, and magnetic properties of the NPs are investigated using X-ray diffraction, X-ray photoelectron spectroscopy, transmission electron microscope. It is shown that (Fe₁₋ₓNiₓ)₃N possess a spherical morphology with a core–shell structure from the TEM results. The magnetic properties of Fe₃N ...
DOI:
10.1039/c6ra05990b

5. (Phenylsulfonyl)acetonitrile as a High-Voltage Electrolyte Additive to Form a Sulfide Solid Electrolyte Interface Film to Improve the Performance of Lithium-Ion Batteries

Author:
Xiao Deng; Xiaoxi Zuo; Huiyin Liang; Lengdan Zhang; Jiansheng Liu; Junmin Nan
Source:
Journal of physical chemistry 2019 v.123 no.19 pp. 12161-12168
ISSN:
1932-7455
Subject:
X-ray photoelectron spectroscopy; cathodes; ions; lithium; lithium batteries; nitriles; oxidation; physical chemistry; scanning electron microscopy; solvents; sulfides
Abstract:
... (Phenylsulfonyl)acetonitrile (PSPAN) is investigated as a high-voltage additive to form a solid electrolyte interface (SEI) on an LiCoO₂ cathode. The results show that after 100 cycles, the capacity retention of Li/LiCoO₂ cells containing 1.0 wt % PSPAN increases from 66.34 to 91.84% and the rate performance of the cells also significantly increases. Linear sweep voltammetry results show that PSPA ...
DOI:
10.1021/acs.jpcc.9b02836

6. (Photo)chlorination-Induced Physicochemical Transformation of Aqueous Fullerene nC60

Author:
Wang Chao; Shang Chii; Ni Mengling; Dai Ji; Jiang Feng
Source:
Environmental Science & Technology 2012 v.46 no.17 pp. 9398-9405
ISSN:
1520-5851
Subject:
Fourier transform infrared spectroscopy; X-ray photoelectron spectroscopy; absorbance; chlorination; chlorine; epoxides; fluorescent lighting; fullerene; hydroxylation; oxidation; oxygen; salinity; solvents; toluene; toxicity
Abstract:
... This study confirmed the physicochemical transformation of aqueous fullerene aggregates (nC₆₀) produced via solvent exchange from toluene by chlorine in the dark and under fluorescent light (representing visible light) by comparing the changes in light absorbance at 700 nm and size distribution of nC₆₀ and characterizing the photochlorination products of nC₆₀ by XPS, FTIR and TOF-SIMS techniques. ...
DOI:
10.1021/es301037f

7. La₀ .₇Sr₀.₃Mn₁–ₓNiₓO₃₋δ Electrocatalysts for the Four-Electron Oxygen Reduction Reaction in Concentrated Alkaline Media

Author:
Yoshitaka Aoki; Etsushi Tsuji; Teruki Motohashi; Damian Kowalski; Hiroki Habazaki
Source:
Journal of physical chemistry 2018 v.122 no.39 pp. 22301-22308
ISSN:
1932-7455
Subject:
X-ray photoelectron spectroscopy; additives; carbon; catalytic activity; electrochemistry; electrodes; manganese; nickel; oxygen; physical chemistry; potassium hydroxide
Abstract:
... Electrocatalytic activity for the four-electron-transfer oxygen reduction reaction (ORR) was examined with perovskite-type La₀.₇Sr₀.₃Mn₁–ₓNiₓO₃—δ (x = 0–0.5) compounds in concentrated KOH. Electrochemical measurements by means of a rotating ring–disk electrode technique revealed that 10% substitution of Mn by Ni atoms significantly improved ORR activity whereas further Ni substitution significantl ...
DOI:
10.1021/acs.jpcc.8b06741

8. 0D/2D CdS/ZnO composite with n-n heterojunction for efficient detection of triethylamine

Author:
Jingjing Liu; Bicheng Zhu; Liuyang Zhang; Jiajie Fan; Jiaguo Yu
Source:
Journal of colloid and interface science 2021 v.600 pp. 898-909
ISSN:
0021-9797
Subject:
X-ray photoelectron spectroscopy; human health; nanosheets; surface area; temperature; triethylamine
Abstract:
... It is imperative to seek for novel materials with pronounced gas sensing performance towards triethylamine for the sake of human health. Herein, we successfully fabricate an outstanding triethylamine sensor based on CdS/ZnO composite with 0D/2D structure, which are prepared by in-situ growth of CdS quantum dots on ultra-thin ZnO nanosheets. The ratios between the two ingredients are adjusted and t ...
DOI:
10.1016/j.jcis.2021.05.082

9. 0D/2D NiS2/V-MXene composite for electrocatalytic H2 evolution

Author:
Panyong Kuang; Min He; Bicheng Zhu; Jiaguo Yu; Ke Fan; Mietek Jaroniec
Source:
Journal of catalysis 2019 v.375 pp. 8-20
ISSN:
0021-9517
Subject:
X-ray photoelectron spectroscopy; active sites; catalysts; electrochemistry; electrolysis; electron transfer; hydrogen; hydrogen production; nanoparticles; titanium; vanadium
Abstract:
... As a member of the family of so-called MXenes, two-dimensional vanadium carbide (V2CTx, denoted as V-MXene) used in electrocatalytic hydrogen evolution reaction (HER) is still in the stage of theoretical study without significant experimental exploration. Here, we present the theoretical and experimental studies on the intrinsic structural and electrochemical properties of V-MXene-based hybrid (Ni ...
DOI:
10.1016/j.jcat.2019.05.019

10. 1,2-Epoxyalkane: Another Precursor for Fabricating Alkoxy Self-Assembled Monolayers on Hydrogen-Terminated Si(111)

Author:
Ahmed I. A. Soliman; Toru Utsunomiya; Takashi Ichii; Hiroyuki Sugimura
Source:
Langmuir 2018 v.34 no.44 pp. 13162-13170
ISSN:
1520-5827
Subject:
Fourier transform infrared spectroscopy; X-ray photoelectron spectroscopy; atomic force microscopy; chemical bonding; contact angle; homolytic cleavage; hydrophobicity; silicon; ultraviolet radiation
Abstract:
... This work describes the UV alkoxylation of a series of 1,2-epoxyalkanes on the hydrogen-terminated silicon (H–Si) substrate. The formation of alkoxy self-assembled monolayers (SAMs) and the nature of bonding at the surface of H–Si were examined using water contact angle goniometer, spectroscopic ellipsometer, Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), a ...
DOI:
10.1021/acs.langmuir.8b02717

11. 1,8-Bis(dimethylamino)naphthalene/9-aminoacridine: A new binary matrix for lipid fingerprinting of intact bacteria by matrix assisted laser desorption ionization mass spectrometry

Author:
C.D. Calvano; A. Monopoli; N. Ditaranto; F. Palmisano
Source:
Analytica chimica acta 2013 v.798 pp. 56-63
ISSN:
0003-2670
Subject:
Escherichia coli; Lactobacillus sanfranciscensis; X-ray photoelectron spectroscopy; bacteria; cardiolipins; energy; free fatty acids; glycolipids; image analysis; ions; matrix-assisted laser desorption-ionization mass spectrometry; naphthalene
Abstract:
... The effectiveness of a novel binary matrix composed of 1,8-bis(dimethylamino)naphthalene (DMAN; proton sponge) and 9-aminoacridine (9AA) for the direct lipid analysis of whole bacterial cells by matrix assisted laser desorption ionization mass spectrometry (MALDI MS) is demonstrated. Deprotonated analyte signals nearly free of matrix-related ions were observed in negative ion mode. The effect of t ...
DOI:
10.1016/j.aca.2013.08.050

12. 1-(2-Cyanoethyl)pyrrole enables excellent battery performance at high temperature via the synergistic effect of Lewis base and CN functional groups

Author:
Kaijia Duan; Jingrong Ning; Lai Zhou; Wenjia Xu; Chuanqi Feng; Tao Yang; Shiquan Wang; Jianwen Liu
Source:
Chemical communications 2020 v.56 no.60 pp. 8420-8423
ISSN:
1364-548X
Subject:
Lewis bases; X-ray photoelectron spectroscopy; cathodes; chemical reactions; electrochemistry; electrolytes; energy; lithium batteries; pyrroles; solvents; synergism; temperature; transition elements; transmission electron microscopy
Abstract:
... The electrolyte of a lithium ion battery is unstable and is easily decomposed at high temperature, which can lead to the degradation of battery performance. To solve this problem, herein a novel electrolyte additive 1-(2-cyanoethyl)pyrrole (CP) has been proposed to improve the electrochemical performance of LiFePO₄ batteries at high temperature. The capacity retention of the battery with 1 wt% CP ...
DOI:
10.1039/d0cc01528h

13. 1-Butanol synthesis from ethanol over strontium phosphate hydroxyapatite catalysts with various Sr/P ratios

Author:
Shuhei Ogo; Ayumu Onda; Yukina Iwasa; Kenji Hara; Atsushi Fukuoka; Kazumichi Yanagisawa
Source:
Journal of catalysis 2012 v.296 no. pp. 24-30
ISSN:
0021-9517
Subject:
gases; X-ray photoelectron spectroscopy; hydroxyapatite; catalysts; dimerization; strontium; catalytic activity; ethanol
Abstract:
... Strontium phosphate hydroxyapatites (Sr-HAP) with various Sr/P molar ratios were synthesized under hydrothermal conditions. X-ray photoelectron spectroscopy revealed a close correlation between the near-surface and bulk Sr/P molar ratios of catalyst samples. Sr-HAP catalysts show high 1-butanol selectivity in the gas-phase conversion of ethanol. Sr-HAP catalysts with higher Sr/P molar ratios showe ...
DOI:
10.1016/j.jcat.2012.08.019

14. A 1-D/2-D hybrid nanostructured manganese cobaltite–graphene nanocomposite for electrochemical energy storage

Author:
A. Nirmalesh Naveen; Subramanian Selladurai
Source:
RSC advances 2015 v.5 no.80 pp. 65139-65152
ISSN:
2046-2069
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; capacitance; chemical analysis; electrochemistry; electrodes; energy; graphene; hot water treatment; manganese; nanocomposites; nanowires; reaction kinetics; scanning electron microscopy; strength (mechanics); surface area; transmission electron microscopy
Abstract:
... A unique 1-D/2-D hybrid nanostructured manganese cobaltite–graphene nanocomposite (GMC) was synthesized by a facile hydrothermal method. Successful composite formation was determined from a structural study like XRD and chemical analyses like FTIR and XPS. FESEM and TEM observations of the manganese cobaltite compound reveal the flower like architecture formed by the clusters of MnCo₂O₄.₅ nanowire ...
DOI:
10.1039/c5ra09288d

15. 1-Hydroxydodecylidene-1,1-diphosphonic acid flotation of bastnäsite: Performance and mechanism

Author:
Hongli Fan; Wen Tan; Guangyi Liu
Source:
Colloids and surfaces 2021 v.609 pp. 125623
ISSN:
0927-7757
Subject:
Fourier transform infrared spectroscopy; X-ray photoelectron spectroscopy; bastnaesite; calcite; pH; rare earth elements; zeta potential
Abstract:
... To separate and enrich rare-earth elements (REE) minerals from their ores through flotation process has become an attracting topic for REE’s strategic position. In the present investigation, the floatability of bastnäsite [(Ce,La)CO₃F] was explored by using 1-hydroxydodecylidene-1,1-diphosphonic acid (HDDPA) as a collector. The micro-flotation results showed that bastnäsite displayed an eminent fl ...
DOI:
10.1016/j.colsurfa.2020.125623

16. 1-Octyl-3-methylimidazolium hexafluorophosphate-functionalised magnetic poly β-cyclodextrin for magnetic solid-phase extraction ofpyrethroids from tea infusions

Author:
Qinqin Xu; Zikai Liu; Chen Yan; Runhua Lu; Wenfeng Zhou
Source:
Food additives & contaminants 2021 v.38 no.10 pp. 1743-1754
ISSN:
1944-0057
Subject:
Fourier transform infrared spectroscopy; X-ray photoelectron spectroscopy; chemical species; desorption; energy-dispersive X-ray analysis; ionic strength; magnetism; pyrethrins; solid phase extraction; sorbents; tea; transmission electron microscopy
Abstract:
... In this study, a novel sorbent, 1-octyl-3-methylimidazolium hexafluorophosphate functionalised magnetic poly β-cyclodextrin, was successfully synthesised and applied to magnetic solid-phase extraction for the determination of pyrethroids in tea infusions. The sorbent was characterised by transmission electron microscopy, energy-dispersive spectroscopy, Fourier transform infrared spectroscopy, X-ra ...
DOI:
10.1080/19440049.2021.1943004

17. 110th Anniversary: Kinetics and X-ray Absorption Spectroscopy in Methane Total Oxidation over Alumina-Supported Pt, Pd, and Ag–Pd Catalysts

Author:
Garam Lee; Weiqing Zheng; Konstantinos A. Goulas; Ivan C. Lee; Dionisios G. Vlachos
Source:
Industrial & engineering chemistry process design and development 2019 v.58 no.38 pp. 17718-17726
ISSN:
1520-5045
Subject:
X-ray absorption spectroscopy; X-ray photoelectron spectroscopy; catalysts; hysteresis; methane; oxidation; oxygen; palladium; platinum; process design; silver
Abstract:
... The kinetics of methane oxidation over Pt/Al₂O₃, Pd/Al₂O₃, and Ag–Pd/Al₂O₃ is investigated as a function of the O₂/CH₄ ratio. We show that as the oxygen fraction increases from low values, three distinct kinetic regimes exist that are nearly first order, negative order, and zero order with respect to the oxygen concentration. At O₂/CH₄ < 3, Pd and Ag–Pd are superior catalysts, whereas at higher ox ...
DOI:
10.1021/acs.iecr.9b03094

18. 1D Nanostructured Na7V4(P2O7)4(PO4) as High-Potential and Superior-Performance Cathode Material for Sodium-Ion Batteries

Author:
Deng Chao; Zhang Sen
Source:
ACS Applied Materials & Interfaces 2014 v.6 no.12 pp. 9111-9117
ISSN:
1944-8252
Subject:
X-ray diffraction; X-ray photoelectron spectroscopy; batteries; cathodes; functional properties; nanorods; sodium; sodium phosphate
Abstract:
... Tailoring materials into nanostructure offers unprecedented opportunities in the utilization of their functional properties. High-purity Na₇V₄(P₂O₇)₄(PO₄) with 1D nanostructure is prepared as a cathode material for rechargeable Na-ion batteries. An efficient synthetic approach is developed by carefully controlling the crystal growth in the molten sodium phosphate. Based on the XRD, XPS, TG, and mo ...
DOI:
10.1021/am501072j

19. 1D/2D MnWO4 nanorods anchored on g-C3N4 nanosheets for enhanced photocatalytic degradation ofloxacin under visible light irradiation

Author:
Lakshmi Prabavathi S.; Saravanakumar K.; Gcina Mamba; Muthuraj V.
Source:
Colloids and surfaces 2019 v.581 pp. 123845
ISSN:
0927-7757
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; anions; carbon nitride; carbonates; catalysts; chemical composition; chlorides; energy-dispersive X-ray analysis; hot water treatment; irradiation; light; nanocomposites; nanorods; nanosheets; ofloxacin; optical properties; photocatalysis; pollutants; pollution control; scanning electron microscopy; sulfates; transmission electron microscopy; ultrasonic treatment
Abstract:
... Herein, MnWO₄ nanorods coupled with g-C₃N₄ nanosheets were fabricated by a simple hydrothermal method, followed by an ultrasonication method. Morphological features, chemical composition, optical properties and crystallographic information of the prepared materials were obtained using SEM-EDX, TEM, XRD, XPS, FT-IR, UV–vis DRS, and PL techniques. The synthesized MnWO₄@g-C₃N₄ nanocomposite displayed ...
DOI:
10.1016/j.colsurfa.2019.123845

20. 2,2′-bipyridine-functionalized single-walled carbon nanotubes: The formation of transition metal complexes and their charge transfer effects

Author:
Magdalena Nosek; Jani Sainio; Pekka M. Joensuu
Source:
Carbon 2018 v.129 pp. 175-182
ISSN:
0008-6223
Subject:
Fourier transform infrared spectroscopy; Raman spectroscopy; X-ray photoelectron spectroscopy; carbon; carbon nanotubes; chemical bonding; ligands; nanohybrids; organometallic compounds; physicochemical properties; transition elements; transmission electron microscopy
Abstract:
... There is presently a great interest in the development of versatile nanohybrid systems that are based on the covalent functionalization of carbon nanotubes. Covalent functionalization of the single walled carbon nanotubes (SWCNTs) enhances their processability and functionality, allowing them to be further used in different applications. However, at the same time this leads to a disturbance of the ...
DOI:
10.1016/j.carbon.2017.12.038

21. 2,4-Dichlorophenoxyacetic acid functionalized gold nanoparticles: synthesis, characterization and biological effects

Author:
Jin-Liang Jia; Li Zhu; Xiao-Yong Jin; Jie Wang; Wei Zhang; Han-Xiang Wu; Han-Hong Xu
Source:
Journal of materials chemistry B 2014 v.2 no.21 pp. 3299-3305
ISSN:
2050-7518
Subject:
2,4-D; Fourier transform infrared spectroscopy; Ricinus; X-ray photoelectron spectroscopy; agrochemicals; bioactive properties; bioimaging; cotyledons; endocytosis; energy; gold; mesophyll; nanogold; plant physiology; transmission electron microscopy; ultraviolet-visible spectroscopy
Abstract:
... Understanding and visualizing the biodistribution of agricultural chemicals inside cells and living plants is very important for enhancing targeting and changing the application approaches of chemicals. Here, a novel material was synthesized through 2,4-dichlorophenoxyacetic acid functionalized small gold nanoparticles (2,4-D-MP-Au NPs). The successful modification of Au NPs (4.46 ± 0.70 nm) was a ...
DOI:
10.1039/c4tb00400k

22. 2-Aminothiazole Functionalized Polystyrene for Selective Removal of Au(III) in Aqueous Solutions

Author:
Xiong Chunhua; Zhou Suguo; Liu Xiaozheng; Jia Qian; Ma Chunan; Zheng Xuming
Source:
Industrial & Engineering Chemistry Research 2014 v.53 no.6 pp. 2441-2448
ISSN:
1520-5045
Subject:
X-ray photoelectron spectroscopy; adsorption; aqueous solutions; cadmium; chelation; chlorides; cobalt; copper; desorption; engineering; gold; infrared spectroscopy; ions; models; nickel; nitrogen; polystyrenes; sorption isotherms; sulfur; thiourea
Abstract:
... A new chelating resin, polystyrene-2-aminothiazole (PS-AT), was synthesized via one-step reaction by grafting 2-aminothiazole in a chloromethylated polystyrene polymer. Its structure was characterized by elemental analysis and infrared spectroscopy. Batch experiments were applied to investigate the adsorption properties of PS-AT for Au(III) ions. The resin exhibits an excellent selectivity for Au( ...
DOI:
10.1021/ie403502r

23. 2-D assembly of supramolecular nanoarchitectures on Mg(0001)

Author:
D. Hurtado Salinas; F. Cometto; B. Stel; K. Kern; M. Lingenfelder
Source:
Chemical communications 2019 v.55 no.12 pp. 1793-1796
ISSN:
1364-548X
Subject:
X-ray photoelectron spectroscopy; chemical communication; chemical reactions; magnesium; scanning tunneling microscopy
Abstract:
... In this work, a Mg(0001) single crystal is used as a novel template to grow 2D supramolecular nano-architectures. By using scanning tunnelling microscopy (STM) and high-resolution X-ray photoemission spectroscopy (HR-XPS), the formation of either a homo-molecular or metal–organic network is reported for carboxylic or amino functionalized molecules, respectively. ...
DOI:
10.1039/c8cc08565j

24. 2-Nitrophenol sensor-based wet-chemically prepared binary doped Co₃O₄/Al₂O₃ nanosheets by an electrochemical approach

Author:
Mohammed M. Rahman; M. M. Alam; Abdullah M. Asiri
Source:
RSC advances 2018 v.8 no.2 pp. 960-970
ISSN:
2046-2069
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; coprecipitation; detection limit; electrochemistry; energy-dispersive X-ray analysis; glassy carbon electrode; health services; nanosheets; nitrophenols; pH; scanning electron microscopy; ultraviolet-visible spectroscopy
Abstract:
... Herein, the wet-chemical process (co-precipitation) was used to prepare nanosheets (NSs) of Co₃O₄/Al₂O₃ in an alkaline medium (pH ∼ 10.5). The synthesized NSs were totally characterized by Fourier-transform infrared spectroscopy (FTIR), ultraviolet visible spectroscopy (UV/vis), field emission scanning electron microscopy (FESEM), energy-dispersive X-ray spectroscopy (EDS), X-ray photoelectron spe ...
DOI:
10.1039/c7ra10866d

25. 2-methoxyethylacrylate modified polysulfone membrane and its blood compatibility

Author:
Xin Tian; Yun-Ren Qiu
Source:
Archives of biochemistry and biophysics 2017 pp. -
ISSN:
0003-9861
Subject:
Fourier transform infrared spectroscopy; X-ray photoelectron spectroscopy; adhesion; adsorption; blood platelets; cattle; cell adhesion; contact angle; hydrophilicity; nuclear magnetic resonance spectroscopy; prothrombin; thrombin; thromboplastin
Abstract:
... Hydrophilic material 2-methoxyethylacrylate (MEA) was grafted onto polysulfone (PSF) membrane via Michael addition reaction. The 1H nuclear magnetic resonance (1H NMR), Attenuated total reflectance-Fourier transform infrared spectroscope (ATR-FTIR) and X-ray photoelectron spectroscopy (XPS) characterization of the modified membrane proved that MEA had been successfully grafted onto PSF membrane su ...
DOI:
10.1016/j.abb.2017.07.018

26. 29,31-H Phthalocyanine Covalently Bonded Directly to a Si(111) Surface Retains Its Metalation Ability

Author:
Chuan He; Andrew V. Teplyakov
Source:
Langmuir 2018 v.34 no.37 pp. 10880-10888
ISSN:
1520-5827
Subject:
Fourier transform infrared spectroscopy; X-ray photoelectron spectroscopy; atomic force microscopy; chemical bonding; cobalt; density functional theory; hydrochloric acid; mass spectrometry; semiconductors; silicon
Abstract:
... The reaction of metal-free phthalocyanine molecules with a chlorine-terminated Si(111) surface is investigated to produce a phthalocyanine functionality directly attached to a semiconductor surface, without additional linkers or layers. The carefully prepared Cl–Si(111) surface provides an oxygen-free substrate that is reacted with 29,31-H phthalocyanine (H₂Pc) in a wet-chemistry process resulting ...
DOI:
10.1021/acs.langmuir.8b02259

27. 2D BiVO4/g-C3N4 Z-scheme photocatalyst for enhanced overall water splitting

Author:
Hanyi Xie; Yanfang Zhao; Huijuan Li; Yizhen Xu; Xiangfeng Chen
Source:
Journal of materials science 2019 v.54 no.15 pp. 10836-10845
ISSN:
0022-2461
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; electron paramagnetic resonance spectroscopy; graphene; hydrogen production; irradiation; optical properties; oxygen production; pH; photocatalysis; photocatalysts; photoluminescence; scanning electron microscopes; semiconductors; transmission electron microscopes; ultraviolet-visible spectroscopy
Abstract:
... A 2D Z-scheme BiVO₄/g-C₃N₄ photocatalyst was successfully synthesized by a two-step hydrothermal/calcination method for overall water splitting. Morphology design to restrain the growth of BiVO₄ nanoplates with thickness around 20 nm was achieved by adjusting the pH value and introducing graphene sheets. Then, the BiVO₄/g-C₃N₄ (BVO-CN) hybrid photocatalysts were fabricated with different mass rati ...
DOI:
10.1007/s10853-019-03664-9

28. 2D Cu-TCNQ Metal–Organic Networks Induced by Surface Alloying

Author:
J. D. Fuhr; L. I. Robino; L. M. Rodrı́guez; A. Verdini; L. Floreano; H. Ascolani; J. E. Gayone
Source:
Journal of physical chemistry 2019 v.124 no.1 pp. 416-424
ISSN:
1932-7455
Subject:
X-ray absorption spectroscopy; X-ray photoelectron spectroscopy; alloys; coordination compounds; copper; density functional theory; geometry; ions; physical chemistry; scanning tunneling microscopy
Abstract:
... We have studied the self-assembly of 7,7,8,8-tetracyanoquinodimethane molecules on the (3√2 × √2)R45° reconstruction of the SnCu(001) surface alloy by means of X-ray photoemission spectroscopy, scanning tunneling microscopy, near-edge X-ray absorption fine structure spectroscopy, and density functional theory calculations. Our results show that surface alloying strongly attenuates the chemical int ...
DOI:
10.1021/acs.jpcc.9b08430

29. 2D MXene/graphene nanocomposite preparation and its electrochemical performance towards the identification of nicotine level in human saliva

Author:
Jerome Rajendran; Ashok K. Sundramoorthy; Dhanraj Ganapathy; Raji Atchudan; Mohamed A. Habila; Deepak Nallaswamy
Source:
Journal of hazardous materials 2022 v.440 pp. 129705
ISSN:
0304-3894
Subject:
Alzheimer disease; X-ray diffraction; X-ray photoelectron spectroscopy; drugs; electrochemistry; films (materials); glassy carbon electrode; graphene; humans; nanocomposites; nicotine; phosphates; quantitative analysis; saliva; transducers (equipment); transmission electron microscopy; voltammetry
Abstract:
... The quantitative analysis of neurological drugs is critical since the kinetics of body fluids is strongly dependent on the dosage of the drug levels. Thus, the study of neurological medicines is significant because of the major diseases connected to it, for instance, Alzheimer's and Parkinson's diseases. Herein, a 2D hybrid MXene/graphene (MX/Gr) film was synthesized through a top-down approach an ...
DOI:
10.1016/j.jhazmat.2022.129705

30. 2D Mapping of NMR Signal Enhancement and Relaxation for Heterogeneously Hyperpolarized Propane Gas

Author:
Barskiy Danila A.; Kovtunov Kirill V.; Gerasimov Evgeny Y.; Phipps M. Anthony; Salnikov Oleg G.; Coffey Aaron M.; Kovtunova Larisa M.; Prosvirin Igor P.; Bukhtiyarov Valerii I.; Koptyug Igor V.; Chekmenev Eduard Y.
Source:
The Journal of Physical Chemistry C 2017 v.121 no.18 pp. 10038-10046
ISSN:
1932-7455
Subject:
X-ray photoelectron spectroscopy; catalysts; hydrogen; hydrogenation; lungs; magnetic resonance imaging; models; nanoparticles; nuclear magnetic resonance spectroscopy; physical chemistry; porous media; propane; propylene; rhodium; temperature; transmission electron microscopy
Abstract:
... Hyperpolarized (HP) propane is a promising contrast agent for magnetic resonance imaging (MRI) of lungs and for studying porous media. The parahydrogen-induced polarization (PHIP) technique is a convenient approach to produce pure propane gas with enhanced proton polarization, when hydrogenation of propylene with parahydrogen is performed over heterogeneous catalysts. Here, we present a new approa ...
DOI:
10.1021/acs.jpcc.7b02506

31. 2D Self-assembly of an amido-ended hyperbranched polyester induced by platinum ion coordination effect

Author:
Daohong Zhang; Junna Li; Jing Wang; Sufang Chen; Jiliang Zhou; Tingcheng Li; Junheng Zhang; Aiqing Zhang; Chuanjun Liu
Source:
RSC advances 2013 v.3 no.38 pp. 17073-17080
ISSN:
2046-2069
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; glass; humidity; hydrogen bonding; hydrophilicity; light microscopy; light scattering; micelles; oxygen; platinum; polyesters; scanning electron microscopy; solvents; temperature
Abstract:
... Compared with amphiphilic hyperbranched polymers (HBPs), the self-assembly of hydrophilic HBPs remains a challenging area. In this article, we report the self-assembly of an amido-ended, hydrophilic hyperbranched polyester (HTDA-2), by taking advantage of the induction effect of the platinum ion. Self-assembled HTDA-2-Pt polymers are composed of ordered 2D tree-like structures with a diameter of a ...
DOI:
10.1039/c3ra42057d

32. 2D amorphous MoS₃ nanosheets with porous network structures for scavenging toxic metal ions from synthetic acid mine drainage

Author:
Weng Fu; Siyuan Yang; Hong Yang; Bao Guo; Zhiqiang Huang
Source:
Journal of materials chemistry A 2019 v.7 no.32 pp. 18799-18806
ISSN:
2050-7496
Subject:
X-ray photoelectron spectroscopy; acid mine drainage; cadmium; chemistry; copper; dimethylformamide; heavy metals; mercury; metal ions; molybdenum disulfide; nanosheets; remediation; solvents; toxicity; ultrasonic treatment
Abstract:
... This is the first time that two-dimensional (2D) amorphous MoS₃ nanosheets were prepared by the exfoliation of the bulk amorphous MoS₃ material in dimethylformamide (DMF) solvent under ultrasonic irradiation. The obtained 2D amorphous MoS₃ nanosheets show a unique porous network structure, which is quite different from that of 2D crystalline MoS₂ nanosheets. The XPS and Raman results reveal that t ...
DOI:
10.1039/c9ta05861c

33. 2D black phosphorus and tungsten trioxide heterojunction for enhancing photocatalytic performance in visible light

Author:
Qi Wang; Bihan Li; Ping Zhang; Wenming Zhang; Xiaoru Hu; Xiaochen Li
Source:
RSC advances 2020 v.10 no.46 pp. 27538-27551
ISSN:
2046-2069
Subject:
X-ray diffraction; X-ray photoelectron spectroscopy; catalysts; coprecipitation; energy; light; liquid chromatography; liquids; mass spectrometry; phosphorus; photocatalysis; photolysis; rhodamines; scanning electron microscopy; tungsten oxide; ultraviolet-visible spectroscopy
Abstract:
... A novel, efficient and stable 2D black phosphorus and tungsten trioxide heterojunction (WO₃–BPNs) was successfully synthesized using a combined hydrothermal, liquid phase exfoliating and co-precipitation method. The as-obtained WO₃–BPNs composite was characterized by using XRD, SEM, XPS, UV-vis, etc. The results showed that the bandgap energy of the WO₃–BPNs50 sample was 2.2 eV, which was lower th ...
DOI:
10.1039/d0ra05230b

34. 2D graphene/FeOCl heterojunctions with enhanced tribology performance as a lubricant additive for liquid paraffin

Author:
Mengxin Xie; Bingli Pan; Ning Li; Shuang Zhao; Junjiang Yan; Shihao Guo; Zhe Chen; Honggang Wang
Source:
RSC advances 2022 v.12 no.5 pp. 2759-2769
ISSN:
2046-2069
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; chemical composition; density functional theory; direct contact; energy; energy-dispersive X-ray analysis; friction; graphene; liquids; lubricants; lubrication
Abstract:
... The purpose of this study is to prepare graphene/FeOCl (G/FeOCl) heterojunctions via a microwave-pyrolysis approach and probe into the synergistic lubrication of G with FeOCl in liquid paraffin (LP). The morphology and chemical composition of specimens were analysed by utilizing scanning electron microscopy (SEM) with energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), Fourier transform ...
DOI:
10.1039/d1ra06650a

35. 2D laser lithography on silicon substrates via photoinduced copper-mediated radical polymerization

Author:
Joachim Laun; Yana De Smet; Emma Van de Reydt; Alexander Krivcov; Vanessa Trouillet; Alexander Welle; Hildegard Möbius; Christopher Barner-Kowollik; Tanja Junkers
Source:
Chemical communications 2018 v.54 no.7 pp. 751-754
ISSN:
1364-548X
Subject:
X-ray photoelectron spectroscopy; copolymerization; mass spectrometry; polyacrylic acid; protocols; silicon
Abstract:
... A 2D laser lithography protocol for controlled grafting of polymer brushes in a single-step is presented. A series of polyacrylates were grafted from silicon substrates via laser-induced copper-mediated radical polymerization. Film thicknesses up to 39 nm were reached within 125 μs of exposure to UV laser light (351 nm). Successful block copolymerization underpinned the controlled nature of the gr ...
DOI:
10.1039/c7cc08444g

36. 2D metal-organic framework nanosheets-assembled core-shell composite material as stationary phase for hydrophilic interaction liquid chromatography

Author:
Tiantian Si; Xiaojing Liang; Xiaofeng Lu; Licheng Wang; Shuai Wang; Yong Guo
Source:
Talanta 2021 v.222 pp. 121603
ISSN:
0039-9140
Subject:
X-ray photoelectron spectroscopy; alkaloids; amino acids; antibiotics; composite materials; coordination polymers; hydrophilic interaction chromatography; nanosheets; polar compounds; repeatability; reproducibility; scanning electron microscopy; separation; silica; standard deviation; sulfonamides; transmission electron microscopy
Abstract:
... The core-shell composites were first prepared by surface modification of silica spheres with two-dimensional MOF-FDM-23 nanosheets via a simple approach. The successful immobilization of 2D MOF-FDM-23 on the silica (2D MOF-FDM-23@silica) was confirmed by series of method including elemental analysis, X-ray photoelectron spectroscopy (XPS), Fourier-transform infrared (FT-IR) transmission electron m ...
DOI:
10.1016/j.talanta.2020.121603

37. 2D, 3D mesostructured silicas templated mesoporous manganese dioxide for selective catalytic reduction of NOx with NH3

Author:
Jinsuo Gao; Yanling Han; Jincheng Mu; Shouchun Wu; Feng Tan; Yong Shi; Xinyong Li
Source:
Journal of colloid and interface science 2018 v.516 pp. 254-262
ISSN:
0021-9797
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; ammonia; catalysts; catalytic activity; manganese dioxide; manganese monoxide; nitrogen oxides; physicochemical properties; porous media; sulfur dioxide; surface area; transmission electron microscopy
Abstract:
... Employing nanocasting method, mesoporous MnO2 catalysts with large specific surface area and regular pore structure were synthesized by using three different types of mesostructure silicas (KIT-6, SBA-15, MCM-41) as hard templates. The physical and chemical properties of the three different mesostructured manganese oxide materials were comparatively and systematically characterized by using XRD, F ...
DOI:
10.1016/j.jcis.2018.01.048

38. 2D-2D growth of NiFe LDH nanoflakes on montmorillonite for cationic and anionic dye adsorption performance

Author:
De Bin Jiang; Chuan Jing; Yunsong Yuan; Li Feng; Xiaoying Liu; Fan Dong; Biqing Dong; Yu Xin Zhang
Source:
Journal of colloid and interface science 2019 v.540 pp. 398-409
ISSN:
0021-9797
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; adsorbents; adsorption; differential thermal analysis; hot water treatment; hydroxides; methyl orange; methylene blue; models; montmorillonite; scanning electron microscopy; surface area; thermogravimetry; wastewater
Abstract:
... NiFe layered double hydroxides nanoflakes decorated montmorillonite (MMT@NiFe LDH) was successfully prepared by a one-pot hydrothermal method. The 2D-2D growth MMT@NiFe LDH was utilized as an effective adsorbent for removal of anionic dye of methyl orange (MO) and cationic dye of methylene blue (MB). The mole ratio of Ni2+/Fe3+ could quite influence the interlayer spacing, surface area per unit ch ...
DOI:
10.1016/j.jcis.2019.01.022

39. 2D-MoS₂/BMN Ceramic Hybrid Structure Flexible TFTs with Tunable Device Properties

Author:
Junqing Wei; Shihui Yu; Xin Shan; Kuibo Lan; Xiaodong Yang; Kailiang Zhang; Guoxuan Qin
Source:
ACS applied materials & interfaces 2020 v.12 no.34 pp. 38306-38313
ISSN:
1944-8252
Subject:
Raman spectroscopy; X-ray photoelectron spectroscopy; atomic force microscopy; ceramics; dielectric properties; electric potential difference; electronics; films (materials); mechanical properties; molybdenum disulfide; polyethylene terephthalates; transistors
Abstract:
... Two-dimensional (2D) layered semiconductor materials have emerged as prospective channel materials in flexible thin-film field effect transistors (TFTs) recently because of their unique electrical and mechanical characteristics. Meanwhile, high-quality ceramics, with outstanding dielectric property and fabrication process compatible with low-cost flexible substrates, have become one of the best ca ...
DOI:
10.1021/acsami.0c07460

40. 2D/2D Schottky heterojunction of in-situ growth FAPbBr3/Ti3C2 composites for enhancing photocatalytic CO2 reduction

Author:
Meidan Que; Weihua Cai; Yang Zhao; Yawei Yang; Boyue Zhang; Sining Yun; Jin Chen; Gangqiang Zhu
Source:
Journal of colloid and interface science 2022 v.610 pp. 538-545
ISSN:
0021-9797
Subject:
X-ray photoelectron spectroscopy; absorption; carbon dioxide; climate; deionization; ethyl acetate; nanosheets; photocatalysis; photocatalysts; photoluminescence; photosynthesis; value added
Abstract:
... Mimicking the natural photosynthesis process to convert carbon dioxide into value-added chemicals is vital to solving both the climate crisis worldwide and the depletion of fossil fuels. Herein, we explore the synthesis of 2D FAPbBr₃ nanoplate combined with 2D Ti₃C₂ nanosheet to form a 2D/2D FAPbBr₃/Ti₃C₂ Schottky heterojunction using facile hot-injection and in-situ growth approaches. The Schottk ...
DOI:
10.1016/j.jcis.2021.11.094

41. 2D/2D g-C3N4/MnO2 Nanocomposite as a Direct Z-Scheme Photocatalyst for Enhanced Photocatalytic Activity

Author:
Pengfei Xia; Bicheng Zhu; Bei Cheng; Jiaguo Yu; Jingsan Xu
Source:
ACS sustainable chemistry & engineering 2018 v.6 no.1 pp. 965-973
ISSN:
2168-0485
Subject:
X-ray photoelectron spectroscopy; carbon nitride; chemical composition; electron paramagnetic resonance spectroscopy; electrons; manganese dioxide; microstructure; nanocomposites; nanosheets; phenol; photocatalysis; photocatalysts; water treatment
Abstract:
... Constructing two-dimensional (2D) composites using layered materials is considered to be an effective approach to achieve high-efficiency photocatalysts. Herein, a 2D/2D g-C₃N₄/MnO₂ heterostructured photocatalyst was synthesized via in situ growth of MnO₂ nanosheets on the surface of g-C₃N₄ nanolayers using a wet-chemical method. The hybrid nanomaterial was characterized by a range of techniques t ...
DOI:
10.1021/acssuschemeng.7b03289

42. 2D–3D Mixed Organic–Inorganic Perovskite Layers for Solar Cells with Enhanced Efficiency and Stability Induced by n-Propylammonium Iodide Additives

Author:
Disheng Yao; Chunmei Zhang; Shengli Zhang; Yang Yang; Aijun Du; Eric Waclawik; Xiaochen Yu; Gregory J. Wilson; Hongxia Wang
Source:
ACS applied materials & interfaces 2019 v.11 no.33 pp. 29753-29764
ISSN:
1944-8252
Subject:
X-ray diffraction; X-ray photoelectron spectroscopy; additives; air; cations; contact angle; density functional theory; encapsulation; energy; hydrophobicity; hysteresis; industrial applications; oxygen; relative humidity; solar cells; solar energy; surface water; wettability
Abstract:
... Device instability has become an obstacle for the industrial application of organic–inorganic metal halide perovskite solar cells that has already demonstrated over 23% laboratory power conversion efficiency (PCE). It has been discovered that the sliding of A-site cations in the perovskite compound through and out of the three-dimensional [PbI₆]⁴– crystal frame is one of the main reasons that are ...
DOI:
10.1021/acsami.9b06305

43. 2D–3D graphene-coated diatomite as a support toward growing ZnO for advanced photocatalytic degradation of methylene blue

Author:
Xingjian Dai; Hao Zeng; Chuan Jin; Jinsong Rao; Xiaoying Liu; Kailin Li; Yifan Zhang; Yaolun Yu; Yuxin Zhang
Source:
RSC advances 2021 v.11 no.61 pp. 38505-38514
ISSN:
2046-2069
Subject:
Fourier transform infrared spectroscopy; Raman spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; absorption; adsorption; diatomaceous earth; electron transfer; energy-dispersive X-ray analysis; graphene; methylene blue; nanocatalysts; nanocomposites; photocatalysis; photocatalysts; photoluminescence; reflectance spectroscopy; synergism; ultraviolet radiation; vapors; wastewater treatment
Abstract:
... In this work, a diatomite@graphene@ZnO (ZGD) photocatalyst was synthesized by chemical vapor deposition and hydrothermal methods and used for the photocatalytic degradation of methylene blue. The characterization of the prepared nanocomposite was performed by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared ...
DOI:
10.1039/d1ra07708b

44. 3,4-Diaminotoluene sensor development based on hydrothermally prepared MnCoxOy nanoparticles

Author:
Mohammed M. Rahman; M.M. Alam; Abdullah M. Asiri; M.A. Islam
Source:
Talanta 2018 v.176 pp. 17-25
ISSN:
0039-9140
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; ambient temperature; energy-dispersive X-ray analysis; glassy carbon electrode; health services; nanoparticles; scanning electron microscopy; toxins; ultraviolet-visible spectroscopy
Abstract:
... A facile hydrothermal process was used to prepare MnCoₓOy nanoparticles (NPs) in alkaline medium (pH~10.5) at room temperature. The NPs were characterized by Fourier-transform infrared spectroscopy (FTIR), ultraviolet visible spectroscopy (UV/vis), field emission scanning electron microscopy (FESEM), X-ray photoelectron spectroscopy (XPS), energy-dispersive X-ray spectroscopy (EDS), and powder X-r ...
DOI:
10.1016/j.talanta.2017.07.093

45. 3-(Phenylsulfonyl)propionitrile as a higher voltage bifunctional electrolyte additive to improve the performance of lithium-ion batteries

Author:
Xiaoxi Zuo; Xiao Deng; Xiangdong Ma; Jinhua Wu; Huiyin Liang; Junmin Nan
Source:
Journal of materials chemistry 2018 v.6 no.30 pp. 14725-14733
ISSN:
2050-7496
Subject:
X-ray photoelectron spectroscopy; anodes; carbon electrodes; cathodes; chemical bonding; electric potential difference; electrolytes; graphene; lithium batteries; scanning electron microscopy
Abstract:
... The effects of 3-(phenylsulfonyl)propionitrile (PSPN) as a higher voltage bifunctional additive in the electrolyte on the formation of a solid electrolyte interface (SEI) on both LiCoO₂ cathodes and graphite anodes are investigated using the half-cell method. The capacity retention of the Li/LiCoO₂ and Li/graphite batteries with PSPN ranges from 10.12% and 74.81% to 79.19% and 92.58% after 200 cyc ...
DOI:
10.1039/c8ta04558e

46. 3D Bi₁₂TiO₂₀/TiO₂ hierarchical heterostructure: Synthesis and enhanced visible-light photocatalytic activities

Author:
Jungang Hou; Zheng Wang; Shuqiang Jiao; Hongmin Zhu
Source:
Journal of hazardous materials 2011 v.192 no.3 pp. 1772-1779
ISSN:
0304-3894
Subject:
X-ray photoelectron spectroscopy; X-ray diffraction; absorption; titanium dioxide; nanorods; pollutants; transmission electron microscopy; nanoparticles; photocatalysts
Abstract:
... A three-dimensional (3D) multicomponent oxide, Bi₁₂TiO₂₀/TiO₂ hierarchical heterostructure was successfully synthesized via a one-step and template-free hydrothermal route. X-ray diffraction and X-ray photoelectron spectroscopy measurements confirm that the composition of the as-fabricated sample is Bi₁₂TiO₂₀/TiO₂ composite. Scanning and transmission electron microscopy observation reveals that th ...
DOI:
10.1016/j.jhazmat.2011.07.013

47. 3D Frameworks with Variable Magnetic and Electrical Features from Sintered Cobalt-Modified Carbon Nanotubes

Author:
Serguei V. Savilov; Sergei A. Chernyak; Maria S. Paslova; Anton S. Ivanov; Tolganay B. Egorova; Konstantin I. Maslakov; Petr A. Chernavskii; Li Lu; Valery V. Lunin
Source:
ACS applied materials & interfaces 2018 v.10 no.24 pp. 20983-20994
ISSN:
1944-8252
Subject:
Raman spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; carbon nanotubes; catalytic activity; cobalt; cobalt oxide; electrical conductivity; electron microscopy; fuel cells; graphene; magnetic properties; magnetic separation; magnetism; nanoparticles; particle size; temperature
Abstract:
... 3D frameworks of carbon nanotubes (CNTs) uniformly decorated by cobalt oxide or carbon-encapsulated cobalt nanoparticles were obtained by spark plasma sintering for the first time. The influence of the sintering temperature (TS) and Co content on the morphology, structure, and electrical and magnetic properties of the obtained materials was investigated by Raman spectroscopy, electron microscopy, ...
DOI:
10.1021/acsami.8b04367

48. 3D Hierarchical Boron-Doped Diamond-Multilayered Graphene Nanowalls as an Efficient Supercapacitor Electrode

Author:
Debosmita Banerjee; Kamatchi Jothiramalingam Sankaran; Sujit Deshmukh; Mateusz Ficek; Gourav Bhattacharya; Jacek Ryl; Deodatta Maheshwar Phase; Mukul Gupta; Robert Bogdanowicz; I-Nan Lin; Aloke Kanjilal; Ken Haenen; Susanta Sinha Roy
Source:
Journal of physical chemistry 2019 v.123 no.25 pp. 15458-15466
ISSN:
1932-7455
Subject:
Raman spectroscopy; X-ray absorption spectroscopy; X-ray photoelectron spectroscopy; boron; capacitance; electrodes; electrolytes; energy; graphene; microstructure; nanomaterials; sodium sulfate; spectral analysis; transmission electron microscopy
Abstract:
... Synthesis of stable hybrid carbon nanostructure for high-performance supercapacitor electrode with long life-cycle for electronic and energy storage devices is a real challenge. Here, we present a one-step synthesis method to produce conductive boron-doped hybrid carbon nanowalls (HCNWs), where sp²-bonded graphene has been integrated with and over a three-dimensional curved wall-like network of sp ...
DOI:
10.1021/acs.jpcc.9b03628

49. 3D Microstructure of supercritical fluid extrudates. II: Cell anisotropy and the mechanical properties

Author:
Cho, K.Y.; Rizvi, S.S.H.
Source:
Food research international 2009 v.42 no.5-6 pp. 603-611
ISSN:
0963-9969
Subject:
extruded foods; extrusion; biopolymers; foams; image analysis; digital images; X-ray photoelectron spectroscopy; tomography; mechanical properties; microstructure; cell walls; starch products; whey protein; protein isolates; equations; computer software; bulk density
Abstract:
... The mechanical properties of biopolymeric cellular foams are often governed by their microstructure. 2D and 3D microstructural data of supercritical fluid extrudates were obtained with X-ray microtomography and correlated with the mechanical properties determined using compression and three-point bending tests. Cell size from transverse cross-sections of SCFX extrudates decreased with radial dista ...
DOI:
10.1016/j.foodres.2008.12.015

50. 3D flowerlike TiO2/GO and TiO2/MoS2 heterostructures with enhanced photoelectrochemical water splitting

Author:
Hongxia Li; Wei Dong; Junhua Xi; Gang Du; Zhenguo Ji
Source:
Journal of materials science 2018 v.53 no.10 pp. 7609-7620
ISSN:
0022-2461
Subject:
X-ray photoelectron spectroscopy; X-ray diffraction; absorption; titanium dioxide; ultraviolet-visible spectroscopy; nanoflowers; electrochemistry; scanning electron microscopy; nanosheets; electric current; photoluminescence; hot water treatment
Abstract:
... TiO₂ nanoflowers modified with MoS₂ and GO nanosheets are prepared by a one-step hydrothermal method followed by a dip-coating process. The morphology, structure and composition of the samples are investigated by XRD, SEM and XPS, respectively. The photoelectrochemical (PEC) measurement reveals that the modified samples exhibit obvious improved photocurrent density. The enhancement can be attribut ...
DOI:
10.1007/s10853-018-2051-8