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1. Alginate-templated synthesis of CoFe/carbon fiber composite and the effect of hierarchically porous structure on electromagnetic wave absorption performance

Author:
Song, Zhiming; Liu, Xiaofang; Sun, Xin; Li, Ya; Nie, Xiaoyu; Tang, Wukui; Yu, Ronghai; Shui, Jianglan
Source:
Carbon 2019 v.151 pp. 36-45
ISSN:
0008-6223
Subject:
absorption; alginates; alloys; carbon; carbon fibers; carbonization; electromagnetic radiation; ions; macropores; magnetism; porous media; temperature
Abstract:
... Natural alginate fibers are used as templates to fabricate CoFe alloy-decorated hierarchically porous carbon fibers (HPCFs). Due to the coordination with negatively charged α−L−guluronate blocks, transition metal (TM) ions could be confined in the “egg box” structure of alginate, which convert to CoFe alloy particles that homogenously embedded in HPCFs during carbonization. The composition and wei ...
DOI:
10.1016/j.carbon.2019.05.025

2. Bifunctional oxygen electrodes of homogeneous Co4N nanocrystals@N-doped carbon hybrids for rechargeable Zn-air batteries

Author:
Chen, Lulu; Zhang, Yelong; Liu, Xiangjian; Long, Ling; Wang, Siyu; Xu, Xiaolong; Liu, Minchao; Yang, Wenxiu; Jia, Jianbo
Source:
Carbon 2019 v.151 pp. 10-17
ISSN:
0008-6223
Subject:
batteries; carbon; catalysts; durability; electrical conductivity; electrochemistry; electrodes; energy conversion; melamine; nanocrystals; nanoparticles; nitrides; nitrogen; oxygen; oxygen production; platinum; surface area
Abstract:
... The development of transition metal nitrides/carbon hybrids with well-organized morphology, outstanding efficiency and durability for Zn-air batteries are of great urgency. Herein, a morphology-controlled strategy to efficiently fabricate uniform Co4N nanoparticles anchored on N-doped carbon (Co4N@NC-m) is reported. The diameters and distribution of Co4N nanocrystals can be tuned to be homogeneous ...
DOI:
10.1016/j.carbon.2019.05.063

3. Carbon-based catalysts for oxygen reduction reaction: A review on degradation mechanisms

Author:
Singh, Harsimranjit; Zhuang, Shiqiang; Ingis, Benjamin; Nunna, Bharath Babu; Lee, Eon Soo
Source:
Carbon 2019 v.151 pp. 160-174
ISSN:
0008-6223
Subject:
adsorption; carbon; catalysts; electrochemistry; oxidation; protonation
Abstract:
... This review focuses on the historic and recent progress of the stability of the carbon-based non-platinum-group metal (PGM) and metal-free catalysts for oxygen reduction reaction (ORR). It highlights the reported degradation mechanisms which are responsible for the instability issue. These mechanisms are (a) oxidative attack of the ORR intermediates, (b) demetalation of the metal-active site, (c) ...
DOI:
10.1016/j.carbon.2019.05.075

4. Chirality-dependent motion transmission between aligned carbon nanotubes

Author:
Wang, Zhao
Source:
Carbon 2019 v.151 pp. 130-135
ISSN:
0008-6223
Subject:
carbon; carbon nanotubes; optical isomerism
Abstract:
... I demonstrate a directional motion-transmission behavior of aligned carbon nanotubes (CNTs) using atomistic simulations. The network of overlapping π orbitals at the interface act as gear teeth to translate the sliding motion of a CNT into a rotating motion of the adjacent CNT, or viceversa. The efficiency of this orthogonal motion transmission is found to strongly depend on the tube chirality, by ...
DOI:
10.1016/j.carbon.2019.05.051

5. CO2-induced architectural transition of hierarchically porous carbon in reverse microemulsion system

Author:
Luan, Sen; Li, Wei; Hou, Xiaojian; Guo, Zanwu; Li, Wenxiu; Song, Yi; Zhang, Xinru; Wang, Qian
Source:
Carbon 2019 v.151 pp. 18-27
ISSN:
0008-6223
Subject:
additives; adsorption; carbon; carbon dioxide; catalysts; crosslinking; drugs; electrodes; emulsions; macropores; micropores; nanospheres; porous media; resorcinol
Abstract:
... A novel approach is provided to control the morphology and the structure of hierarchically porous carbon (HPC) materials with well-ordered mesoporous structure. A water-in-oil reverse microemulsion (F127/MMA) was employed as the reactive system and resorcinol and p-phthalaldehyde as the reactant with one-pot method by using compressed CO2. Specially, the morphology of the as-made HPC can be transf ...
DOI:
10.1016/j.carbon.2019.05.066

6. Correlation between the catalytic and electrocatalytic properties of nitrogen-doped carbon nanoonions and the polarity of the carbon surface: Experimental and theoretical investigations

Author:
Szymański, Grzegorz S.; Wiśniewski, Marek; Olejnik, Piotr; Koter, Stanisław; Castro, Edison; Echegoyen, Luis; Terzyk, Artur P.; Plonska-Brzezinska, Marta E.
Source:
Carbon 2019 v.151 pp. 120-129
ISSN:
0008-6223
Subject:
X-ray photoelectron spectroscopy; annealing; carbon; electrochemistry; helium; hydrogen peroxide; models; nanodiamonds; nitrogen; peroxidase; temperature
Abstract:
... Nitrogen atoms were introduced into carbon nanoonion (CNO) cages by annealing aminated nanodiamonds (AM-NDs) under an inert helium atmosphere and reduced pressure. This procedure provided a convenient tool to control the surface properties, such as polarity, and to make CNOs suitable for various applications. Two series of CNOs were produced using different temperatures (1150, 1450 and 1650 °C) an ...
DOI:
10.1016/j.carbon.2019.05.069

7. 3D CVD graphene oxide-coated Ni foam as carbo- and electro-catalyst towards hydrogen evolution reaction in acidic solution: In situ electrochemical gas chromatography

Author:
Sarawutanukul, Sangchai; Phattharasupakun, Nutthaphon; Sawangphruk, Montree
Source:
Carbon 2019 v.151 pp. 109-119
ISSN:
0008-6223
Subject:
catalysts; catalytic activity; corrosion; electrochemistry; electrodes; electrolytes; foams; gas chromatography; graphene; graphene oxide; hydrogen production; methanol; microscopy; moieties; nickel; spectroscopy; sulfuric acid; vapors
Abstract:
... 3D graphene oxide (GO) carbocatalyst-coated nickel foam substrate (GO@Ni) was synthesized by chemical vapor deposition (CVD) using methanol and water as material precursors. Interestingly, the GO@Ni has anti-corrosion property in an acidic electrolyte and high catalytic activity towards hydrogen evolution reaction (HER). Ni metal is easily corroded in the acid solution and cannot be used as an ele ...
DOI:
10.1016/j.carbon.2019.05.058

8. Durable degradation resistance of graphene coated nickel and Monel-400 as bi-polar plates for proton exchange membrane fuel cell

Author:
Sanjid, A.; Anisur, M.R.; Singh Raman, R.K.
Source:
Carbon 2019 v.151 pp. 68-75
ISSN:
0008-6223
Subject:
alloys; coatings; copper; corrosion; electrical conductivity; electrochemistry; fuel cells; graphene; nickel; scanning electron microscopy; sulfuric acid; vapors
Abstract:
... Degradation/corrosion of metallic bi-polar plates in proton exchange membrane fuel cell (PEMFC) environment is a vexing problem in durable performance of PEMFCs. Graphene coatings have been demonstrated to provide robust and durable corrosion resistance in PEMFC environment, without compromising the essential criterion, i.e., high electric conductivity. Multilayer graphene coatings were deposited ...
DOI:
10.1016/j.carbon.2019.05.071

9. Effect of polysulfone brush functionalization on thermo-mechanical properties of melt extruded graphene/polysulfone nanocomposites

Author:
Peña-Bahamonde, Janire; San-Miguel, Verónica; Baselga, Juan; Fernández-Blázquez, Juan P.; Gedler, Gabriel; Ozisik, Rahmi; Cabanelas, Juan C.
Source:
Carbon 2019 v.151 pp. 84-93
ISSN:
0008-6223
Subject:
chemical bonding; deformation; glass transition temperature; graphene; graphene oxide; mechanical properties; melting; nanocomposites; polymers; scanning electron microscopy; transmission electron microscopy
Abstract:
... The current work reports the preparation of nanocomposites of polysulfone (PSU) reinforced with reduced graphene oxide (rGO) by a solvent-free extrusion-injection method. In order to improve nanofiller dispersation, rGO was covalently grafted with PSU brushes via click chemistry. Several rGO/PSU nanocomposites with concentrations up to 3% (by weight) were prepared with both unmodified and PSU-graf ...
DOI:
10.1016/j.carbon.2019.05.072

10. Excellent mechanical, tribological and anti-corrosive performance of novel Ti-DLC nanocomposite thin films prepared via magnetron sputtering method

Author:
Zhang, Shidong; Yan, Mufu; Yang, Yang; Zhang, Yanxiang; Yan, Fuyao; Li, Hongtao
Source:
Carbon 2019 v.151 pp. 136-147
ISSN:
0008-6223
Subject:
carbon; corrosion; friction; hardness; microstructure; nanocomposites
Abstract:
... Ti-doped diamond-like carbon nanocomposite thin films with different Ti contents are prepared by closed field unbalanced magnetron sputtering. Designed Ti target current increases from 0.3A to 1.0A. The effect of Ti content on microstructures and properties is investigated. The phases of nano-TiC and amorphous carbon are confirmed. The film (containing less than 50% sp3 C content) deposited with a ...
DOI:
10.1016/j.carbon.2019.05.031

11. Fabrication of three-dimensionally nanostructured carbon materials with functional tube-in-tube network units for enhanced electrochemical performances

Author:
Chen, Luyi; Zheng, Bingna; Huang, Junlong; Tang, Zhiwei; Liu, Shaohong; Liu, Ruliang; Wu, Dingcai; Fu, Ruowen
Source:
Carbon 2019 v.151 pp. 103-108
ISSN:
0008-6223
Subject:
carbon; carbon nanotubes; carbonization; cathodes; electrical conductivity; electrochemistry; energy; hosts; microspores; nanopores; polymerization; polystyrenes; porous media; rooting; silica; sulfur
Abstract:
... A kind of three-dimensionally nanostructured carbon materials (3DNCMs) with tube-in-tube structure was fabricated based on a novel structural design and precise control of ternary bottlebrushes by surface-initiated atom transfer radical polymerization (SI-ATRP). The 3D interconnected network of 3DNCMs consists of the hybrid carbon framework with unique tube-in-tube structure rooting from the terna ...
DOI:
10.1016/j.carbon.2019.05.039

12. Filament printing of graphene-based inks into self-supported 3D architectures

Author:
Moyano, J.J.; Gómez-Gómez, A.; Pérez-Coll, D.; Belmonte, M.; Miranzo, P.; Osendi, M.I.
Source:
Carbon 2019 v.151 pp. 94-102
ISSN:
0008-6223
Subject:
electrical conductivity; freeze drying; graphene; graphene oxide; heat; hydrogels; hydrophilicity; hydrophobicity; modulus of elasticity; nanocomposites; surfactants
Abstract:
... The arrangement of 2D graphene-type structures into strong and self-supported architectures by filament printing depends critically on the ink characteristics. Printable inks are normally achieved by controlling the electro-steric interactions in the particle dispersion by different means. This research shows that is possible to use just a single surfactant for graphene-type inks, such as graphene ...
DOI:
10.1016/j.carbon.2019.05.059

13. Hard carbon spheres interconnected by carbon nanotubes as high-performance anodes for sodium-ion batteries

Author:
Suo, Liyao; Zhu, Jiahao; Shen, Xueyang; Wang, Yizhou; Han, Xiao; Chen, Zhongqiang; Li, Yi; Liu, Yurong; Wang, Dan; Ma, Yanwen
Source:
Carbon 2019 v.151 pp. 1-9
ISSN:
0008-6223
Subject:
anodes; batteries; carbon; carbon nanotubes; electrical conductivity; electron transfer
Abstract:
... Hard carbon is one of the most promising candidates of anode materials for sodium-ion batteries (SIBs). However, its insufficient electrical conductivity resulted from the non-graphitizable structure is a main obstacle to increasing its capacity and rate performance in devices. To resolve this issue, here carbon nanotubes (CNTs) connected hard carbon spheres (HCSs) composite was prepared by carbon ...
DOI:
10.1016/j.carbon.2019.05.030

14. High-power laser-patterning graphene oxide: A new approach to making arbitrarily-shaped self-aligned electrodes

Author:
Rodriguez, R.D.; Murastov, G.V.; Lipovka, A.; Fatkullin, M.I.; Nozdrina, O.; Pavlov, S.K.; Postnikov, P.S.; Chehimi, M.M.; Chen, Jin-Ju; Sheremet, E.
Source:
Carbon 2019 v.151 pp. 148-155
ISSN:
0008-6223
Subject:
carbon; electrodes; electronics; graphene oxide; nanomaterials
Abstract:
... We demonstrate the fabrication of self-aligned laser-reduced graphene oxide patterns with a spatial resolution/laser spot size ratio of 1/10, lower than anything reported before using laser-reduction. Laser light modifies graphene oxide (GO) by removing the oxygen-containing groups turning GO into a more graphene-like nanomaterial. Our method is based on high laser power density used for the reduc ...
DOI:
10.1016/j.carbon.2019.05.049

15. Macroscale superlubricity under extreme pressure enabled by the combination of graphene-oxide nanosheets with ionic liquid

Author:
Ge, Xiangyu; Li, Jinjin; Wang, Hongdong; Zhang, Chenhui; Liu, Yuhong; Luo, Jianbin
Source:
Carbon 2019 v.151 pp. 76-83
ISSN:
0008-6223
Subject:
carbon; graphene oxide; industrial applications; ionic liquids; liquids; nanosheets; shear stress; synergism
Abstract:
... The liquid-superlubricity state has rarely been studied under an average contact pressure exceeding 300 MPa at the macroscale. In this work, a robust macroscale liquid-superlubricity state (μ ≈ 0.005) under an extreme pressure of 600 MPa was reported, which was enabled by the combination of graphene-oxide (GO) nanosheets with an ionic liquid (IL) between the frictional pairs of Si3N4/sapphire. The ...
DOI:
10.1016/j.carbon.2019.05.070

16. Nitrogen and oxygen co-doped porous carbon nanosheets as high-rate and long-lifetime anode materials for high-performance Li-ion capacitors

Author:
Liu, Mengyue; Zhang, Zhengping; Dou, Meiling; Li, Zhilin; Wang, Feng
Source:
Carbon 2019 v.151 pp. 28-35
ISSN:
0008-6223
Subject:
anodes; aqueous solutions; carbon; carbonization; electrical conductivity; electrical equipment; energy; energy density; freeze drying; gelatin; ice; lithium; nanosheets; nitrogen; oxygen; potassium chloride; scales (integument); washing
Abstract:
... The rational design and sustainable synthesis of high-performance electrode materials are crucial for the practical applications of Li-ion capacitors. Herein, we demonstrate a sustainable strategy for the synthesis of N and O co-doped porous carbon nanosheets via the extraction of gelatin from the fish scales by KCl aqueous solution, lyophilization, and carbonization followed by water washing. Wit ...
DOI:
10.1016/j.carbon.2019.05.065

17. Nitrogen-doped porous carbon from coal for high efficiency CO2 electrocatalytic reduction

Author:
Li, Chen; Wang, Yuwei; Xiao, Nan; Li, Hongqiang; Ji, Yongqiang; Guo, Zhen; Liu, Chang; Qiu, Jieshan
Source:
Carbon 2019 v.151 pp. 46-52
ISSN:
0008-6223
Subject:
ammonia; carbon; carbon dioxide; catalysts; coal; electrochemistry; electrodes; hydrogen; nanomaterials; nitrogen; synergism
Abstract:
... Efficient CO2 electroreduction over nitrogen-doped carbon catalysts has aroused tremendous interests over the past decades. However, it still remains a great challenge to develop a carbon-based electrocatalysts with high efficiency. Herein, we develop a facile and scalable ammonia etching strategy to synthesis nitrogen-doped porous carbon from earth-abundant coal as an efficient metal-free catalys ...
DOI:
10.1016/j.carbon.2019.05.042

18. Robust technique for dispersion of single-walled carbon nanotubes in aqueous solutions with tRNA

Author:
Zaremba, Orysia; Goldt, Anastasia; Ramirez-Morales, Maria; Khabushev, Eldar M.; Shulga, Eugene; Eremin, Timofei; Prikazchikova, Tatiana; Orekhov, Anton; Grebenko, Artem; Zatsepin, Timofei S.; Obraztsova, Elena D.; Nasibulin, Albert G.
Source:
Carbon 2019 v.151 pp. 175-180
ISSN:
0008-6223
Subject:
absorbance; aqueous solutions; carbon; carbon nanotubes; cryo-electron microscopy; dispersions; drugs; engineering; image analysis; photoluminescence; sonication; spectroscopy; transfer RNA; transmission electron microscopy; ultrasonic treatment
Abstract:
... Stable dispersions of single-walled carbon nanotubes (SWCNTs) demonstrated great prospects for applications in biomedical engineering, including bioelectronics, nanoparticle-based drug delivery and imaging in vivo. Prolonged stability of individual SWCNTs in suspensions is crucial for these applications. Here we report the method for efficient stabilization of SWCNT dispersions with transfer ribon ...
DOI:
10.1016/j.carbon.2019.05.076

19. Scalable ternary hierarchical microspheres composed of PANI/ rGO/CeO2 for high performance supercapacitor applications

Author:
Jeyaranjan, Aadithya; Sakthivel, Tamil Selvan; Neal, Craig J.; Seal, Sudipta
Source:
Carbon 2019 v.151 pp. 192-202
ISSN:
0008-6223
Subject:
capacitance; carbon; ceric oxide; electrochemistry; graphene oxide; microparticles; nanofibers; nanorods; polymers; specific energy; spray drying; synergism
Abstract:
... Designing hybrid conductive polymer structures that can effectively mitigate capacitance fade and improve cycle life is critical to developing viable conductive polymer-based supercapacitors. Low cost and high yield synthesis methods that can be easily scaled-up are also crucial for industry-scale production. Herein, we report a highly scalable porous hierarchical microspheres composed of polyanil ...
DOI:
10.1016/j.carbon.2019.05.043

20. Solid carbon production and recovery from high temperature methane pyrolysis in bubble columns containing molten metals and molten salts

Author:
Rahimi, Nazanin; Kang, Dohyung; Gelinas, John; Menon, Aditya; Gordon, Michael J.; Metiu, Horia; McFarland, Eric W.
Source:
Carbon 2019 v.151 pp. 181-191
ISSN:
0008-6223
Subject:
alloys; bioreactors; bubbles; carbon; catalysts; droplets; liquids; methane; pyrolysis; salts; temperature; vapors
Abstract:
... We study methane pyrolysis in a bubble column reactor consisting of a layer of molten NiBi alloy, and a molten salt layer floating on the metal layer. The molten metal is a pyrolysis catalyst; the molten salt layer is added for removing contaminants from the carbon product. Methane is introduced at the bottom of the reactor and the rising bubbles contain reactant and product gases together with me ...
DOI:
10.1016/j.carbon.2019.05.041