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
Citations
More filters
Journal ArticleDOI
Recent Advances in Ultrathin Two-Dimensional Nanomaterials
Chaoliang Tan,Xiehong Cao,Xiehong Cao,Xue-Jun Wu,Qiyuan He,Jian Yang,Xiao Zhang,Junze Chen,Wei Zhao,Shikui Han,Gwang-Hyeon Nam,Melinda Sindoro,Hua Zhang +12 more
TL;DR: The unique advances on ultrathin 2D nanomaterials are introduced, followed by the description of their composition and crystal structures, and the assortments of their synthetic methods are summarized.
Journal ArticleDOI
Metal-free catalysts for oxygen reduction reaction.
TL;DR: This paper presents a probabilistic procedure for estimating the polymethine content of carbon dioxide using a straightforward two-step procedure, and shows good results in both the stationary and the liquid phase.
Journal ArticleDOI
Heteroatom-doped graphene materials: syntheses, properties and applications
TL;DR: The distinct properties resulting from various dopants, different doping levels and configurations, and synergistic effects from co-dopants are emphasized, hoping to assist a better understanding of doped graphene materials.
Journal ArticleDOI
Carbon-based metal-free catalysts
Xien Liu,Liming Dai,Liming Dai +2 more
TL;DR: Carbon-based metal-free catalysts as discussed by the authors have been widely used as catalysts for materials production, clean energy generation and storage, and many other important industrial processes, but metal-based catalysts suffer from high cost, low selectivity, poor durability, susceptibility to gas poisoning and have a detrimental environmental impact.
References
More filters
Journal ArticleDOI
Nitrogen-doped graphene for high-performance ultracapacitors and the importance of nitrogen-doped sites at basal planes.
Hyung Mo Jeong,Jung Woo Lee,Weon Ho Shin,Yoon Jeong Choi,Hyun-Joon Shin,Jeung Ku Kang,Jang Wook Choi +6 more
TL;DR: Using nitrogen-doped graphene produced by a simple plasma process, ultracapacitors are developed whose capacitances are about 4 times larger than those of pristine graphene based counterparts without sacrificing other essential and useful properties for ultracAPacitor operations including excellent cycle life, high power capability, and compatibility with flexible substrates.
Journal ArticleDOI
The characterization of activated carbons with oxygen and nitrogen surface groups
TL;DR: The physicochemical properties and the surface chemical structure of the carbon materials obtained by the modification of the commercial activated carbon D43/1 (Carbo-Tech, Essen, Germany) were studied in this article.
Journal ArticleDOI
Mechanisms of Oxygen Reduction Reaction on Nitrogen-Doped Graphene for Fuel Cells
Lipeng Zhang,Zhenhai Xia +1 more
TL;DR: In this paper, the authors used density functional theory (DFT) to demonstrate that the oxygen reduction reaction (ORR) on N-doped graphene is a direct fourelectron pathway, which is consistent with the experimental observations.
Journal ArticleDOI
High oxygen-reduction activity and durability of nitrogen-doped graphene
Dongsheng Geng,Ying Chen,Yougui Chen,Yongliang Li,Ruying Li,Xueliang Sun,Siyu Ye,Shanna Knights +7 more
TL;DR: In this article, Nitrogen-doped graphene as a metal-free catalyst for oxygen reduction was synthesized by heat-treatment of graphene using ammonia and the optimum temperature was 900 °C.
Journal ArticleDOI
BCN Graphene as Efficient Metal-Free Electrocatalyst for the Oxygen Reduction Reaction
Shuangyin Wang,Lipeng Zhang,Zhenhai Xia,Ajit K. Roy,Dong Wook Chang,Jong-Beom Baek,Liming Dai +6 more
TL;DR: This work has previously prepared vertically aligned nitrogendoped carbon nanotubes as ORR electrocatalysts, which are free from anode crossover and CO poisoning and show a threefold higher catalytic activity and better durability than the commercial Pt/C catalyst.