Advanced Oxygen Reduction Electrocatalyst Based on Nitrogen-Doped Graphene Derived from Edible Sugar and Urea

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	Advanced Oxygen Reduction Electrocatalyst Based on Nitrogen-Doped Graphene Derived from Edible Sugar and Urea
	Pan FP(潘富平)1,2 ; Jin JT(金具涛)1 ; Fu XG(付小刚)1; Liu Q(刘乔)1; Zhang JY(张俊彦)1
刊名	ACS Applied Materials & Interfaces
	2013
卷号	5 期号:21 页码:11108-11114
关键词	nitrogen-doped graphene pyrolysis synthesis metal-free catalysis oxygen reduction reaction
ISSN号	1944-8244
通讯作者	张俊彦
英文摘要	Designing and fabricating advanced oxygen reduction reaction (ORR) electrocatalysts is critical importance for the sake of promoting widespread application of fuel cells. In this work, we report that nitrogendoped graphene (NG), synthesized via one-step pyrolysis of naturally available sugar in the presence of urea, can serve as metal-free ORR catalyst with excellent electrocatalytic activity, outstanding methanol crossover resistance as well as longterm operation stability in alkaline medium. The resultant NG1000 (annealed at 1000 °C) exhibits a high kinetic current density of 21.33 mA/cm² at −0.25 V (vs Ag/AgCl) in O₂-saturated 0.1 M KOH electrolyte, compared with 16.01 mA/cm2 at −0.25 V for commercial 20 wt % Pt/C catalyst. Notably, the NG1000 possesses comparable ORR half-wave potential to Pt/C. The effects of pyrolysis temperature on the physical prosperity and ORR performance of NG are also investigated. The obtained results demonstrate that high activation temperature (1000 °C) results in low nitrogen doping level, high graphitization degree, enhanced electrical conductivity, and high surface area and pore volume, which make a synergetic contribution to enhancing the ORR performance for NG.
学科主题	材料科学与物理化学
收录类别	SCI
资助信息	Key Basic Research Project of China (973 Program, 2013CB632300);National Natural Science Foundation of China (51275508;51205383)
语种	英语
WOS记录号	WOS:000327103500092
公开日期	2013-12-23
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/4843]
专题	兰州化学物理研究所_固体润滑国家重点实验室
作者单位	1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Pan FP,Jin JT,Fu XG,et al. Advanced Oxygen Reduction Electrocatalyst Based on Nitrogen-Doped Graphene Derived from Edible Sugar and Urea[J]. ACS Applied Materials & Interfaces,2013,5(21):11108-11114.
APA	Pan FP,Jin JT,Fu XG,Liu Q,&Zhang JY.(2013).Advanced Oxygen Reduction Electrocatalyst Based on Nitrogen-Doped Graphene Derived from Edible Sugar and Urea.ACS Applied Materials & Interfaces,5(21),11108-11114.
MLA	Pan FP,et al."Advanced Oxygen Reduction Electrocatalyst Based on Nitrogen-Doped Graphene Derived from Edible Sugar and Urea".ACS Applied Materials & Interfaces 5.21(2013):11108-11114.