You searched for:
Subject term
annealing
Remove constraint Subject term: annealing
Subject term
X-ray diffraction
Remove constraint Subject term: X-ray diffraction
Subject term
Fourier transform infrared spectroscopy
Remove constraint Subject term: Fourier transform infrared spectroscopy
Subject term
X-ray photoelectron spectroscopy
Remove constraint Subject term: X-ray photoelectron spectroscopy
PubAg
Main content area
Limit your search
Search
32 Search Results
1 - 32 of 32
Search Results
- Author:
- Jing-Jing Fan; You-Jun Fan; Rui-Xiang Wang; Sheng Xiang; Hua-Guo Tang; Shi-Gang Sun
- Source:
- Journal of materials chemistry A 2017 v.5 no.36 pp. 19467-19475
- ISSN:
- 2050-7496
- Subject:
- Fourier transform infrared spectroscopy; Raman spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; annealing; carbon nanotubes; catalysts; durability; electrochemistry; electron transfer; fuel cells; graphene; methanol; nanohybrids; nanoparticles; oxidation; platinum; sulfur; surface area; transmission electron microscopy
- Abstract:
- ... Doped nanocarbon materials (e.g., carbon nanotubes, graphene) are considered as effective electrocatalyst supports for fuel cells, and their electrochemical properties are closely related to the synthetic methods and the types of doping elements. In the current paper, we report a novel approach to synthesize sulfur-doped multi-walled carbon nanotubes (S-MWCNTs) as a highly efficient support materi ...
- DOI:
- 10.1039/c7ta05102f
- https://doi.org/10.1039/c7ta05102f
- Author:
- Lanling Zhao; Jun Wang; Zhigang Gai; Jichao Li; Jian Liu; Jiyang Wang; Chunlei Wang; Xiaolin Wang
- Source:
- RSC advances 2019 v.9 no.15 pp. 8364-8368
- ISSN:
- 2046-2069
- Subject:
- Fourier transform infrared spectroscopy; Raman spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; air; annealing; ceramics; density functional theory; dielectric permittivity; dielectric properties; oxygen; titanium dioxide
- Abstract:
- ... Density functional theory calculations were conducted to investigate the electronic structures of rutile Ti₁₆O₃₂, Ti₁₃Nb₂InO₃₂, and Ti₁₃Nb₂InO₃₁ systems. High density (Nb + In) co-doped rutile TiO₂ ceramics were successfully prepared by one modified solid state method. XRD, XPS, Raman scattering and FT-IR measurements were performed to investigate the structural properties of the (Nb + In) co-dope ...
- DOI:
- 10.1039/c9ra00564a
- https://doi.org/10.1039/c9ra00564a
- Author:
- Z. Khatami; C. Nowikow; J. Wojcik; P. Mascher
- Source:
- Journal of materials science 2018 v.53 no.2 pp. 1497-1513
- ISSN:
- 0022-2461
- Subject:
- Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; annealing; chemical bonding; coatings; desorption; hydrogen; photovoltaic cells; quantitative analysis; refractive index; silicon; silicon carbide; temperature; transmission electron microscopy; vapors
- Abstract:
- ... Silicon carbonitride (SiCₓNy) materials, inspired by their outstanding multifunctional properties, are finding increasing applications in a variety of fields, including as next generation solar cells and hard coatings. Hydrogenated SiCₓNy thin films, along with binary submatrices of stoichiometric SiC and SiN₃ as a reference, were deposited using electron cyclotron resonance plasma-enhanced chemic ...
- DOI:
- 10.1007/s10853-017-1576-6
- https://doi.org/10.1007/s10853-017-1576-6
- Author:
- Bihe Yuan; Weiyi Xing; Yixin Hu; Xiaowei Mu; Junling Wang; Qilong Tai; Guojun Li; Lu Liu; Kim Meow Liew; Yuan Hu
- Source:
- Carbon 2016 v.101 pp. 152-158
- ISSN:
- 0008-6223
- Subject:
- Fourier transform infrared spectroscopy; Raman spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; active sites; annealing; boric acid; boron; gasification; graphene; graphene oxide; oxidation; oxidative stability; phosphoric acid; phosphorus; temperature; transmission electron microscopy; weight loss
- Abstract:
- ... B, N- and P, N-doped reduced graphene oxide (RGO) are prepared through high temperature annealing method using boric acid and phosphoric acid as the B and P sources, respectively. The synthesized RGO and dual-doped RGO are well characterized by Fourier transform infrared spectroscopy, X-ray diffraction, Raman spectroscopy, X-ray photoelectron spectroscopy and transmission electron microscopy. The ...
- DOI:
- 10.1016/j.carbon.2016.01.080
- https://doi.org/10.1016/j.carbon.2016.01.080
- Author:
- Qin Hao; Tie Liu; Jingyuan Liu; Qi Liu; Xiaoyan Jing; Hongquan Zhang; Guoqing Huang; Jun Wang
- Source:
- RSC advances 2017 v.7 no.23 pp. 14192-14199
- ISSN:
- 2046-2069
- Subject:
- Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; annealing; chemical composition; crystal structure; graphene; graphene oxide; nanocomposites; nitrogen dioxide; pollutants; temperature; transmission electron microscopy; tungsten oxide; volatile organic compounds
- Abstract:
- ... In this paper, we report on a facile hydrothermal approach combined with a subsequent annealing process for the controllable synthesis of a single-crystalline WO₃–rGO porous nanocomposite. The crystal structure, morphology and chemical composition of the as-obtained product were well-characterized by X-ray diffraction, transmission electron microscopy, X-ray photoelectron spectroscopy, Fourier tra ...
- DOI:
- 10.1039/c6ra28379a
- https://doi.org/10.1039/c6ra28379a
- Author:
- Nicholas T. Nolan; Damian W. Synnott; Michael K. Seery; Steven J. Hinder; Axel Van Wassenhoven; Suresh C. Pillai
- Source:
- Journal of hazardous materials 2012 v.211-212 no. pp. 88-94
- ISSN:
- 0304-3894
- Subject:
- annealing; X-ray photoelectron spectroscopy; X-ray diffraction; solar radiation; chelating agents; nitrogen; absorption; methylene blue; titanium dioxide; differential scanning calorimetry; Fourier transform infrared spectroscopy; temperature; photocatalysts; sol-gel processing
- Abstract:
- ... In order to study the visible light photocatalytic activity of nitrogen doped titanium dioxide, the interaction between nitrogen dopant sources and titania precursors during sol–gel synthesis is investigated. N–TiO₂ was synthesised using the sol–gel method using 1,3-diaminopropane as a nitrogen source. Samples were annealed several temperatures and the percentage of rutile present determined by X- ...
- DOI:
- 10.1016/j.jhazmat.2011.08.074
- https://doi.org/10.1016/j.jhazmat.2011.08.074
- Author:
- Hongling Li; Jiao Wei; Yanan Qian; Jianling Zhang; Jian Yu; Guosheng Wang; Guangwen Xu
- Source:
- Colloids and Surfaces A: Physicochemical and Engineering Aspects 2014 v.449 pp. 148-156
- ISSN:
- 0927-7757
- Subject:
- Fourier transform infrared spectroscopy; Raman spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; annealing; capacitance; dielectric spectroscopy; electrochemistry; electrodes; energy; graphene; heat treatment; microstructure; nanocomposites; nanosheets; oxides; scanning electron microscopy; temperature; transmission electron microscopy; vanadium
- Abstract:
- ... The vanadium oxides (VOx)/graphene hybrid materials constructed from 2D graphene nanosheets (GNS) and VOx are successfully prepared by a simple two-step procedure including solvothermal method and subsequent thermal treatment. Effects of the GNS content and the annealing temperature on the microstructure and morphology of as-obtained composites are characterized by X-ray diffraction (XRD), X-ray p ...
- DOI:
- 10.1016/j.colsurfa.2014.03.001
- https://doi.org/10.1016/j.colsurfa.2014.03.001
- Author:
- C. Anushree; D. Nanda Gopala Krishna; B. B. Lahiri; John Philip
- Source:
- Journal of physical chemistry 2020 v.124 no.10 pp. 5702-5714
- ISSN:
- 1932-7455
- Subject:
- Fourier transform infrared spectroscopy; Raman spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; annealing; carboxymethylcellulose; insulating materials; iron; magnetite; nanocomposites; nanoparticles; nanopores; particle size; physical chemistry; temperature; theoretical models; thermal degradation; thermal stability; thermogravimetry; transmission electron microscopy
- Abstract:
- ... We report an enhanced thermal insulation of Fe₃O₄ nanoparticle by nanoporous char layer formed during thermal decomposition of Fe₃O₄@carboxymethyl cellulose. The role of char layer properties, decomposition pathways at different Fe³⁺/Fe²⁺ ratio, and the initial core size on thermal stability are evaluated using XRD, HRTEM, SAXS, TGA, FTIR, XPS, and laser Raman scattering. In situ high temperature ...
- DOI:
- 10.1021/acs.jpcc.9b11660
- https://doi.org/10.1021/acs.jpcc.9b11660
- Author:
- Hu Lianren; Ren Yumei; Yang Hongxia; Xu Qun
- Source:
- ACS Applied Materials & Interfaces 2014 v.6 no.16 pp. 14644-14652
- ISSN:
- 1944-8252
- Subject:
- Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; annealing; anodes; carbon; crystal structure; electrochemistry; lithium batteries; nanoflowers; nanosheets; nitrogen; scanning electron microscopy; transmission electron microscopy
- Abstract:
- ... In this work, three-dimensional (3D) hierarchical MoS₂/polyaniline (PANI) nanoflowers were successfully fabricated via a simple hydrothermal method. The crystal structure and morphology of the MoS₂/PANI nanoflowers were characterized by SEM, TEM, XRD, XPS, and FT-IR spectra, revealing that the nanoflowers were composed of ultrathin nanoplates which consisted of few-layered MoS₂ nanosheets with enl ...
- DOI:
- 10.1021/am503995s
- https://doi.org/10.1021/am503995s
- Author:
- Xu Wangying; Wang Han; Xie Fangyan; Chen Jian; Cao Hongtao; Xu Jian-Bin
- Source:
- ACS Applied Materials & Interfaces 2015 v.7 no.10 pp. 5803-5810
- ISSN:
- 1944-8252
- Subject:
- Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; aluminum oxide; annealing; atomic force microscopy; dielectric spectroscopy; dielectrics; differential scanning calorimetry; electric power; electronics; nitrates; temperature; thermogravimetry
- Abstract:
- ... We developed a facile and environmentally friendly solution-processed method for aluminum oxide (AlOₓ) dielectrics. The formation and properties of AlOₓ thin films under various annealing temperatures were intensively investigated by thermogravimetric analysis–differential scanning calorimetry (TGA-DSC), X-ray diffraction (XRD), spectroscopic ellipsometry, atomic force microscopy (AFM), attenuated ...
- DOI:
- 10.1021/am508775c
- https://doi.org/10.1021/am508775c
- Author:
- Xuyan Wang; Kunmei Su; Zhenhuan Li; Bowen Cheng
- Source:
- RSC advances 2016 v.6 no.14 pp. 11176-11184
- ISSN:
- 2046-2069
- Subject:
- Fourier transform infrared spectroscopy; Raman spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; annealing; biomass; cellobiose; cellulose; electrical conductivity; fructose; glucose; graphene; graphene oxide; heat; hydroxymethylfurfural; mass spectrometry; organic matter; scanning electron microscopy; thermogravimetry; transmission electron microscopy; ultraviolet-visible spectroscopy
- Abstract:
- ... Basic divalent sulfide species exhibit unique chemical activity in that they react with organic matter and function as a redox reagent. Herein, graphene oxide (GO) was modified by basic divalent sulfide species, and the modified materials were characterized by FT-IR spectra, XRD, UV-Vis, SEM, HRTEM, XPS, TG-MS analysis, Raman spectroscopy and electrical conductivity measurements. The results indic ...
- DOI:
- 10.1039/c5ra24287h
- https://doi.org/10.1039/c5ra24287h
- Author:
- Jong-Min Park; Kyoung Hwan Kim; Cheng Jin An; Ming Liang Jin; Jun-Hee Hahn; Byung-Seon Kong; Hee-Tae Jung
- Source:
- RSC advances 2014 v.4 no.54 pp. 28409-28416
- ISSN:
- 2046-2069
- Subject:
- Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; annealing; composite films; composite materials; dielectric properties; hardness; hydrocarbons; mechanical properties; polyethylene glycol; porosity; porous media; scanning electron microscopy; silica; stoichiometry; transmission electron microscopy
- Abstract:
- ... We report here a new dual-coating method for the deposition of SiCOH (elementally descriptive but not representing the stoichiometry) ATMS (allyltrimethylsilane) low-k films on mesoporous SiO₂ (SBA-15)/PEG (polyethylene glycol) composite films to improve the dielectric constant and mechanical properties of SiCOH/SBA-15 dual forms. The deposition was achieved via a two-step process: (i) pre-treatme ...
- DOI:
- 10.1039/c4ra03604b
- https://doi.org/10.1039/c4ra03604b
- Author:
- Renard Laetitia; Brötz Joachim; Fuess Hartmut; Gurlo Aleksander; Riedel Ralf; Toupance Thierry
- Source:
- ACS applied materials 2014 v.6 no.19 pp. 17093-17101
- ISSN:
- 1944-8252
- Subject:
- Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; air; annealing; atomic force microscopy; carbon monoxide; contact angle; films (materials); hydrogen; nanocrystals; scanning electron microscopy; temperature; tin; tin dioxide
- Abstract:
- ... Hydrolysis–condensation of bis(triprop-1-ynylstannyl)butylene led to nanostructured bridged polystannoxane films yielding tin dioxide thin layers upon UV-treatment or annealing in air. According to Fourier transform infrared (FTIR) spectroscopy, contact angle measurements, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM), and scanning electron microsco ...
- DOI:
- 10.1021/am504723t
- https://doi.org/10.1021/am504723t
- Author:
- Zhu Xiong; Fu Liu; Ailin Gao; Haibo Lin; Xuemin Yu; Yunze Wang; Yi Wang
- Source:
- RSC advances 2016 v.6 no.25 pp. 20492-20499
- ISSN:
- 2046-2069
- Subject:
- Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; annealing; atomic force microscopy; biocompatibility; composite polymers; copolymerization; crosslinking; crystallization; differential scanning calorimetry; heat tolerance; hydrolysis; hydrophilicity; polylactic acid; scanning electron microscopy; shrinkage; wettability
- Abstract:
- ... Polylactide (PLA) has attracted much attention as a sustainable and environmentally friendly material. However, the poor heat resistance restricts its potential application as a porous membrane. Herein, a PLA membrane with excellent heat resistance, hydrophilicity and hemocompatibility was developed via a surface crosslinking induced crystallization strategy, which involved two key reactions, name ...
- DOI:
- 10.1039/c5ra27030h
- https://doi.org/10.1039/c5ra27030h
- Author:
- Kwon Jinhyeong; Cho Hyunmin; Eom Hyeonjin; Lee Habeom; Suh Young Duk; Moon Hyunjin; Shin Jaeho; Hong Sukjoon; Ko Seung Hwan
- Source:
- ACS applied materials 2016 v.8 no.18 pp. 11575-11582
- ISSN:
- 1944-8252
- Subject:
- Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; air; annealing; copper; cost effectiveness; electrical properties; electronics; furnaces; heat; nanoparticles; oxidation; polymers; scanning electron microscopy; temperature; thermal properties
- Abstract:
- ... Copper nanomaterials suffer from severe oxidation problem despite the huge cost effectiveness. The effect of two different processes for conventional tube furnace heating and selective laser sintering on copper nanoparticle paste is compared in the aspects of chemical, electrical and surface morphology. The thermal behavior of the copper thin films by furnace and laser is compared by SEM, XRD, FT- ...
- DOI:
- 10.1021/acsami.5b12714
- https://doi.org/10.1021/acsami.5b12714
- Author:
- Sandra Yadira Mendiola-Alvarez; Ma. Aracely Hernández-Ramírez; Jorge Luis Guzmán-Mar; Lorena Leticia Garza-Tovar; Laura Hinojosa-Reyes
- Source:
- Environmental science and pollution research 2019 v.26 no.5 pp. 4180-4191
- ISSN:
- 0944-1344
- Subject:
- Fourier transform infrared spectroscopy; Raman spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; ammonium; annealing; catalysts; chemical bonding; crystallites; ion exchange chromatography; microwave treatment; mineralization; nanoparticles; nitrates; nitrogen; pH; particle size; phosphates; phosphorus; photocatalysis; photoluminescence; porous media; reflectance; scanning electron microscopy; sol-gel processing; sulfamethazine; sulfates; sulfur; surface area; temperature; titanium; titanium dioxide
- Abstract:
- ... Mesoporous phosphorous-doped TiO₂ (TP) with different wt% of P (0.5, 1.0, and 1.5) was synthetized by microwave-assisted sol–gel method. The obtained materials were characterized by XRD with cell parameters refinement approach, Raman, BET-specific surface area analysis, SEM, ICP-OES, UV–Vis with diffuse reflectance, photoluminescence, FTIR, and XPS. The photocatalytic activity under visible light ...
- DOI:
- 10.1007/s11356-018-2314-6
- https://doi.org/10.1007/s11356-018-2314-6
- Author:
- Dana Toloman; Ovidiu Pana; Maria Stefan; Adriana Popa; Cristian Leostean; Sergiu Macavei; Dan Silipas; Ioana Perhaita; Mihaela Diana Lazar; Lucian Barbu-Tudoran
- Source:
- Journal of colloid and interface science 2019 v.542 pp. 296-307
- ISSN:
- 0021-9797
- Subject:
- Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; air; annealing; chemical precipitation; deodorization; dyes; electron paramagnetic resonance spectroscopy; energy; hydrogen production; irradiation; moieties; nanoparticles; oxidation; photocatalysis; polyvinylpyrrolidone; porosity; surface area; thermogravimetry; tin dioxide; titanium dioxide; transmission electron microscopy; water purification
- Abstract:
- ... Interface modified SnO2-TiO2 composite nanoparticles were produced in two stages: first SnO2 nanoparticles were prepared by chemical precipitation in the presence of polyvinylpyrrolidone (PVP) and thermally treated at 500 °C then TiO2 was deposited on top of modified SnO2 and followed by a final annealing. As a consequence SnO2–TiO2 composite nanoparticles get crystallized while PVP is decomposed ...
- DOI:
- 10.1016/j.jcis.2019.02.026
- https://doi.org/10.1016/j.jcis.2019.02.026
- Author:
- Wenjie Pu; Zhilong Song; Jia Yan; Hui Xu; Haiyan Ji; Shouqi Yuan; Huaming Li
- Source:
- Journal of materials science 2019 v.54 no.19 pp. 12463-12475
- ISSN:
- 0022-2461
- Subject:
- Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; adsorption; air; annealing; equations; filtration; methyl orange; methylene blue; models; nitrogen; oxygen; pollutants; pollution control; rhodamines; sorption isotherms; temperature; tungsten oxide; wastewater treatment
- Abstract:
- ... A novel oxygen defect-rich WO₃₋ₓ nanoplates were synthesized using a solvothermal method followed by an annealing treatment under Ar–H₂ gas mixture atmosphere. WO₃₋ₓ nanoplates possess large numbers of oxygen defects systematically demonstrated by the elemental analysis, X-ray diffraction, Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy, respectively. The adsorption ca ...
- DOI:
- 10.1007/s10853-019-03780-6
- https://doi.org/10.1007/s10853-019-03780-6
- Author:
- Dongsheng Lu; Jianglong Li; Jia He; Ruirui Zhao; Yuepeng Cai
- Source:
- Journal of physical chemistry 2019 v.123 no.14 pp. 8522-8530
- ISSN:
- 1932-7455
- Subject:
- Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; annealing; cathodes; cooling; electrochemistry; ions; lithium; lithium batteries; manganese; nickel; oxygen; physical chemistry; scanning electron microscopy
- Abstract:
- ... A series of off-stoichiometric LiNiₓMn₂–ₓO₄ (x = 0.37, 0.43, 0.49, 0.52, and 0.56) spinels are prepared by adjusting Mn/Ni molar ratio and are used to investigate the correlations between Mn³⁺ content, structural ordering degree, oxygen vacancies, impurities, and electrochemical properties in these spinels through inductive coupled plasma atomic emission spectroscopy, scanning electron microscopy, ...
- DOI:
- 10.1021/acs.jpcc.8b11085
- https://doi.org/10.1021/acs.jpcc.8b11085
- Author:
- Pótári G.; Madarász D.; Nagy L.; László B.; Sápi A.; Oszkó A.; Kukovecz A.; Erdőhelyi A.; Kónya Z.; Kiss J.
- Source:
- Langmuir 2013 v.29 no.9 pp. 3061-3072
- ISSN:
- 1520-5827
- Subject:
- Fourier transform infrared spectroscopy; X-radiation; X-ray diffraction; X-ray photoelectron spectroscopy; annealing; catalysts; energy; ion exchange; nanocomposites; nanoparticles; nanotubes; nanowires; temperature; thermodynamics; titanium dioxide; transmission electron microscopy
- Abstract:
- ... High-aspect-ratio titanate nanotubes (NT) and nanowires (NW) were produced by the hydrothermal conversion of TiO₂ at 400 K. The titanate morphology was studied by high-resolution transmission electron microscopy (HRTEM). The formation of ordered titanate nanoobjects depended on the time of conversion. Shorter synthesis times favored hollow nanotube production while during prolonged treatment the t ...
- DOI:
- 10.1021/la304470v
- https://doi.org/10.1021/la304470v
- Author:
- Jingpeng Wang; Chunyu Du; Chunqiu Yan; Xing Xu; Xiaoshu He; Geping Yin; Pengjian Zuo; Xinqun Cheng; Yulin Ma; Yunzhi Gao
- Source:
- RSC advances 2016 v.6 no.31 pp. 26307-26316
- ISSN:
- 2046-2069
- Subject:
- Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; annealing; cathodes; dielectric spectroscopy; electrochemistry; electrolytes; fluorides; fluorine; lithium; lithium batteries; phase transition; scanning electron microscopy; temperature; transmission electron microscopy
- Abstract:
- ... This paper reports the surface fluorine modification of the nickel-rich concentration gradient Li[Ni₀.₇₃Co₀.₁₂Mn₀.₁₅]O₂ material by facile high temperature annealing, and its influence on the electrochemical performance. The samples are characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, Fourier transform infrared spectroscopy, X-ray photoelectron sp ...
- DOI:
- 10.1039/c6ra01679k
- https://doi.org/10.1039/c6ra01679k
- Author:
- Saha Jony; Radhakrishnan T. P.
- Source:
- Langmuir 2017 v.33 no.34 pp. 8372-8382
- ISSN:
- 1520-5827
- Subject:
- Fourier transform infrared spectroscopy; Raman spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; annealing; catalysts; cerium; chemical analysis; cost effectiveness; electrochemistry; electron microscopy; glass; iron; nitrogen; oxidation; oxygen production; pH; phosphates; porosity; surface area
- Abstract:
- ... Design of electrocatalysts for the fundamentally important oxygen evolution reaction can be greatly aided by systematic structure–activity tuning via composition variation. We have explored the iron–cerium system as they are the most abundant transition and rare earth metals, and also due to the mutualistic impact of their size and electronic attributes that can induce critical changes in the stru ...
- DOI:
- 10.1021/acs.langmuir.7b01647
- https://doi.org/10.1021/acs.langmuir.7b01647
23. Strong adsorption of tetracycline hydrochloride on magnetic carbon-coated cobalt oxide nanoparticles
- Author:
- Guanrong Yang; Qiongzhi Gao; Siyuan Yang; Shiheng Yin; Xin Cai; Xiaoyuan Yu; Shengsen Zhang; Yueping Fang
- Source:
- Chemosphere 2020 v.239 pp. 124831
- ISSN:
- 0045-6535
- Subject:
- Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; adsorbents; adsorption; annealing; aqueous solutions; carbon; cobalt oxide; ecosystems; electrostatic interactions; heat production; human health; magnetism; nanoparticles; pH; scanning electron microscopy; sorption isotherms; temperature; tetracycline; transmission electron microscopy; wastewater; zeta potential
- Abstract:
- ... The overuse of antibiotics, including tetracycline hydrochloride (TC), seriously threatens human health and ecosystems. In this work, magnetic carbon-coated cobalt oxide nanoparticles (CoO@C) were prepared by one-step annealing method and used as an adsorbent for efficient removal of TC from aqueous solution. The characteristic of the materials was studied by SEM, TEM, and XRD, revealing CoO nanop ...
- DOI:
- 10.1016/j.chemosphere.2019.124831
- https://doi.org/10.1016/j.chemosphere.2019.124831
- Author:
- Esro Mazran; Kolosov Oleg; Jones Peter J.; Milne William I.; Adamopoulos George
- Source:
- ACS Applied Materials & Interfaces 2017 v.9 no.1 pp. 529-536
- ISSN:
- 1944-8252
- Subject:
- Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; air; annealing; dielectrics; hysteresis; oxidation; pyrolysis; silica; silicon; stoichiometry; temperature; ultraviolet-visible spectroscopy
- Abstract:
- ... Silicon dioxide (SiO₂) is the most widely used dielectric for electronic applications. It is usually produced by thermal oxidation of silicon or by using a wide range of vacuum-based techniques. By default, the growth of SiO₂ by thermal oxidation of silicon requires the use of Si substrates whereas the other deposition techniques either produce low quality or poor interface material and mostly req ...
- DOI:
- 10.1021/acsami.6b11214
- https://doi.org/10.1021/acsami.6b11214
- Author:
- Xiang-Hu Gao; Zhi-Ming Guo; Qing-Fen Geng; Peng-Jun Ma; Ai-Qin Wang; Gang Liu
- Source:
- RSC advances 2016 v.6 no.68 pp. 63867-63873
- ISSN:
- 2046-2069
- Subject:
- Fourier transform infrared spectroscopy; Raman spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; absorbance; air; aluminum oxide; annealing; ceramics; coatings; scanning electron microscopy; solar energy; temperature; thermal stability
- Abstract:
- ... A tandem layer structured SS/TiC–ZrC/Al₂O₃ coating has been prepared by magnetron sputtering as a high temperature spectrally selective solar absorber. The coating consists of two layers; a TiC–ZrC layer and an Al₂O₃ layer. TiC and ZrC ceramics show inherent spectral selectivity, which is used to design spectrally selective solar absorbers. A co-sputtering technique was used to fabricate the absor ...
- DOI:
- 10.1039/c6ra11602g
- https://doi.org/10.1039/c6ra11602g
- Author:
- Jiao Zhou; Jiawei Zhang; Afrasiab Ur Rehman; Kan Kan; Li Li; Keying Shi
- Source:
- Journal of materials science 2017 v.52 no.7 pp. 3757-3770
- ISSN:
- 0022-2461
- Subject:
- Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; ambient temperature; ammonia; annealing; cobalt; crosslinking; cupric oxide; electrical properties; metal ions; nanoparticles; polyvinylpyrrolidone; scanning electron microscopy; transmission electron microscopy
- Abstract:
- ... The Co₃O₄@CuO composite nanochains (CCNCs) were fabricated by electrospinning approach and controlled annealing route. The formation of nanochains was attributed to the interactions between N,N-Dimethylformamide and metal ions (Cu²⁺ or Co²⁺) acted as a cross-linking point or a bridge among the entangled polyvinylpyrrolidone (PVP) chains. The calcined samples were composed of porous single-crystal ...
- DOI:
- 10.1007/s10853-016-0561-9
- https://doi.org/10.1007/s10853-016-0561-9
- Author:
- Xiaowei Mu; Bihe Yuan; Xiaming Feng; Shuilai Qiu; Lei Song; Yuan Hu
- Source:
- RSC advances 2016 v.6 no.107 pp. 105021-105029
- ISSN:
- 2046-2069
- Subject:
- Fourier transform infrared spectroscopy; Raman spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; active sites; air; ammonium hydroxide; annealing; boric acid; boron; electrons; enthalpy; graphene oxide; heat; hydrazine; metaphosphates; nitrogen; oxidation; oxidative stability; oxygen; phosphoric acid; phosphorus; poisoning; sodium borohydride; temperature; thermal stability; transmission electron microscopy
- Abstract:
- ... The doping of nitrogen into reduced graphene oxide (NRGO) is achieved by reduction of graphene oxide with hydrazine hydrate and ammonium hydroxide. Boron (BRGO) or phosphorus (PRGO) doped reduced graphene oxide (RGO) is obtained by annealing of RGO (prepared by reduction with sodium borohydride) with boric acid or phosphoric acid, respectively. The successful preparation of the doped RGO is confir ...
- DOI:
- 10.1039/c6ra21329d
- https://doi.org/10.1039/c6ra21329d
- Author:
- Lujie Sheng; Jizhong Ren; Kaisheng Hua; Hui Li; Yuxuan Feng; Maicun Deng
- Source:
- Journal of membrane science 2019 pp. -
- ISSN:
- 0376-7388
- Subject:
- Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; annealing; artificial membranes; crosslinking; gel chromatography; mass spectrometry; modulus of elasticity; molecular weight; scanning electron microscopy; spinning; temperature; tensile strength; thermogravimetry
- Abstract:
- ... In this paper, BTDA-TDI/MDI (P84) co-polyimide hollow fiber membranes (HFMs) were prepared by dry-jet wet spinning technique. The P84 HFMs were thermally annealed below and above P84 Tg (321.5 °C) to investigate their mechanical properties and gas separation properties. Thermally annealing at different temperature below and above Tg influenced the tensile strength, Young's modulus and the elongati ...
- DOI:
- 10.1016/j.memsci.2019.117580
- https://doi.org/10.1016/j.memsci.2019.117580
- Author:
- Peyman Salehian; Tai-Shung Chung
- Source:
- Journal of membrane science 2017 v.528 pp. 231-242
- ISSN:
- 0376-7388
- Subject:
- Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; ammonia; annealing; asymmetric membranes; crosslinking; graphene oxide; isopropyl alcohol; microstructure; moieties; permeability; pervaporation; polymers; scanning electron microscopy; solvents; temperature
- Abstract:
- ... A novel mixed matrix membrane (MMM) consisting of a cross-linkable 6FDA polyimide matrix and ammonia functionalized graphene oxide (NHGO) particles has been molecularly designed at elevated temperatures for water/IPA separation. The reaction scheme was proposed and evidenced by FTIR and XPS analyses. The evolution of microstructure changes in each step of MMM formation was systematically studied b ...
- DOI:
- 10.1016/j.memsci.2017.01.038
- https://doi.org/10.1016/j.memsci.2017.01.038
- Author:
- Nora M. Moo-Tun; A. Valadez-Gonzalez; J. A. Uribe-Calderon
- Source:
- Journal of polymers and the environment 2019 v.27 no.6 pp. 1226-1239
- ISSN:
- 1566-2543
- Subject:
- Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; annealing; atomic force microscopy; biodegradation; carboxylic acids; catalytic activity; cellulose; chlorides; contact angle; crystal structure; energy; hydrophobicity; molecular weight; nanocrystals; oxidation; polyethylene; thermal stability; thermogravimetry
- Abstract:
- ... The effect of the incorporation of pristine and stearoyl chloride grafted CNCs on the chemical, mechanical, thermal and microstructural properties, during the thermo-oxidative aging, of LDPE blown films at 60 °C was studied. The success of the pristine CNCs grafting was assessed by Fourier transform infrared (FT-IR) spectroscopy, X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), The ...
- DOI:
- 10.1007/s10924-019-01424-z
- https://doi.org/10.1007/s10924-019-01424-z
- Author:
- Naseri Amene; Samadi Morasae; Mahmoodi Niyaz Mohammad; Pourjavadi Ali; Mehdipour Hamid; Moshfegh Alireza Z.
- Source:
- The Journal of Physical Chemistry C 2017 v.121 no.6 pp. 3327-3338
- ISSN:
- 1932-7455
- Subject:
- Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; air; annealing; bisphenol A; chemical bonding; crystal structure; cupric oxide; electric current; energy; hydroxyl radicals; irradiation; methylene blue; nanofibers; photocatalysis; photoluminescence; pollutants; polymers; reflectance spectroscopy; scanning electron microscopy; solar radiation; zinc oxide
- Abstract:
- ... ZnO/CuO nanofibers, with different CuO concentrations, were fabricated by one-step electrospinning of the polymer precursor and annealing in air. Scanning electron microscopy (SEM) showed smooth and beadless morphology for the synthesized nanofibers, while X-ray diffraction (XRD) analysis revealed formation of hexagonal and monoclinic crystalline structure phases for ZnO and CuO nanofibers, respec ...
- DOI:
- 10.1021/acs.jpcc.6b10414
- https://doi.org/10.1021/acs.jpcc.6b10414
- Author:
- Parthiban Pazhamalai; Karthikeyan Krishnamoorthy; Surjit Sahoo; Vimal Kumar Mariappan; Sang-Jae Kim
- Source:
- ACS applied materials & interfaces 2018 v.11 no.1 pp. 624-633
- ISSN:
- 1944-8252
- Subject:
- Fourier transform infrared spectroscopy; Raman spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; annealing; capacitance; dehydrogenation; electrochemistry; energy conversion; energy density; heat treatment; ionic liquids; materials science; moieties; temperature
- Abstract:
- ... Two-dimensional siloxene sheets are an emerging class of materials with an eclectic range of potential applications including electrochemical energy conversion and storage sectors. Here, we demonstrated the dehydrogenation/dehydroxylation of siloxene sheets by thermal annealing at high temperature (HT) and investigated their supercapacitive performances using ionic liquid electrolyte. The X-ray di ...
- DOI:
- 10.1021/acsami.8b15323
- https://doi.org/10.1021/acsami.8b15323