Journal ArticleDOI
Simple preparation of nanoporous few-layer nitrogen-doped graphene for use as an efficient electrocatalyst for oxygen reduction and oxygen evolution reactions
TLDR
In this paper, a simple pyrolysis of graphene oxide and polyaniline was performed to obtain nitrogen-doped graphene (NG), which has excellent catalytic activity toward oxygen reduction reaction (ORR) in an alkaline electrolyte.About:
This article is published in Carbon.The article was published on 2013-03-01. It has received 326 citations till now. The article focuses on the topics: Electrocatalyst & Oxygen evolution.read more
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Nitrogen-doped graphene supported Pt nanoparticles with enhanced performance for methanol oxidation
Junhong Ma,Li Wang,Xue Mu,Li Li +3 more
TL;DR: In this article, a series of nitrogen-doped graphene nanocomposites (N-RGO) derived from pyrolysis of graphene oxide (GO)/polyaniline composites with varied mass ratio between GO and aniline were used as support for immobilization of Pt nanoparticles.
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N-doped graphene grown on silk cocoon-derived interconnected carbon fibers for oxygen reduction reaction and photocatalytic hydrogen production
TL;DR: In this paper, the N-doped graphene (NG) is integrated into highly conductive frameworks, simultaneously providing more active sites and higher conductivity, and the resulting product (NG-SCCf) exhibits an onset potential that is only 0.1 V less negative than that of Pt/C and shows stability and methanol tolerance superior to those of P/C in alkaline media.
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Theoretical study on the optical and electronic properties of graphene quantum dots doped with heteroatoms
Jianguang Feng,Hongzhou Dong,Beili Pang,Feifei Shao,Chunkai Zhang,Liyan Yu,Lifeng Dong,Lifeng Dong +7 more
TL;DR: The results indicate that large radius atoms assist charge transfer in the excited state and play an important role in recombining the electron density distribution in the doped GQDs.
Journal ArticleDOI
The New Graphene Family Materials: Synthesis and Applications in Oxygen Reduction Reaction
TL;DR: Graphene family materials, including graphene quantum dots (GQDs), graphene nanoribbons (GNRs) and 3D-G, have attracted much research interest for the oxygen reduction reaction (ORR) in fuel cells and metal-air batteries, due to their unique structural characteristics, such as abundant activate sites, edge effects and the interconnected network as mentioned in this paper.
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Oxygen Evolution Reaction on Nitrogen-Doped Defective Carbon Nanotubes and Graphene.
Garold Murdachaew,Kari Laasonen +1 more
TL;DR: Density functional theory simulations within a simple thermodynamic model of the more difficult half-reaction, the anodic oxygen evolution reaction (OER), with a single-walled carbon nanotube as a model catalyst show that the presence of 0.3–1% nitrogen reduces the required OER overpotential significantly compared to the pristine nanotubes.
References
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Journal ArticleDOI
Nitrogen-Doped Graphene as Efficient Metal-Free Electrocatalyst for Oxygen Reduction in Fuel Cells
TL;DR: The resultant N-graphene was demonstrated to act as a metal-free electrode with a much better electrocatalytic activity, long-term operation stability, and tolerance to crossover effect than platinum for oxygen reduction via a four-electron pathway in alkaline fuel cells.
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Synthesis of N-Doped Graphene by Chemical Vapor Deposition and Its Electrical Properties
TL;DR: Electrical measurements show that the N-doped graphene exhibits an n-type behavior, indicating substitutional doping can effectively modulate the electrical properties of graphene.
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Reporting physisorption data for gas/solid systems with special reference to the determination of surface area and porosity (Provisional)
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Catalyst-Free Synthesis of Nitrogen-Doped Graphene via Thermal Annealing Graphite Oxide with Melamine and Its Excellent Electrocatalysis
TL;DR: A facile, catalyst-free thermal annealing approach for large-scale synthesis of NG using low-cost industrial material melamine as the nitrogen source is proposed, which can completely avoid the contamination of transition metal catalysts, and thus the intrinsic catalytic performance of pure NGs can be investigated.
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N-doping of graphene through electrothermal reactions with ammonia.
Xinran Wang,Xiaolin Li,Li Zhang,Youngki Yoon,Peter K. Weber,Hailiang Wang,Jing Guo,Hongjie Dai +7 more
TL;DR: An n-type graphene field-effect transistor that operates at room temperature is fabricated and confirmed the carbon-nitrogen species in graphene thermally annealed in ammonia is covalently functionalized by nitrogen species.