Fabrication of Tungsten Carbide Nanoparticle-encased Graphite-like Mesoporous Carbon as a Precious Metal-free Electrocatalyst for Oxygen Reduction

doi:10.15541/jim20170305

	Fabrication of Tungsten Carbide Nanoparticle-encased Graphite-like Mesoporous Carbon as a Precious Metal-free Electrocatalyst for Oxygen Reduction
	Cui Xiang-Zhi ; Zhang Lin-Lin ; Zeng Li-Ming ; Zhang Xiao-Hua ; Chen Hang-Rong ; Shi Jian-Lin
刊名	JOURNAL OF INORGANIC MATERIALS
	2018
卷号	33 期号:2 页码:213
关键词	tungsten carbide graphitization mesoporous ORR
ISSN号	1000-324X
DOI	10.15541/jim20170305
英文摘要	Tungsten carbide nanoparticle-encased graphite-like mesoporous carbon (WC/MG), as a precious metal-free cathode catalyst for oxygen reduction reaction, was successfully synthesized by a template replicating-assisted chemical vapor deposition (CVD) method. The obtained mesostructured WC/MG composite possesses high oxygen reduction reaction catalytic activity and stable electrochemical property. In O-2-staturated 0.1 mol/L KOH solution, the half-wave potential (E-1/2) and limiting current density of the sample WC/MG-900 annealed at 900 degrees C were only 50 mV and 0.2 mA/cm(2) lower than those of commercial Pt/C catalyst, respectively. Koutecky-Levich (K-L) plots and rotating ring-disk electrode (RDE) measurements indicated that the mesostructured WC/MG exhibited an approximate 4 e-transfer pathway during the ORR process. The comparable ORR performance to Pt/C, long-lived electrochemical stability and excellent methanol tolerance make the synthesized mesostructured WC/MG composite a potential electrode catalyst in oxygen reduction reaction.
学科主题	Materials Science, Ceramics
出版者	SCIENCE PRESS
WOS记录号	WOS:000429158800010
资助机构	National Key Basic Research Program of China (2013CB933200) ; Natural Science Foundation of Shanghai (16ZR1440600) ; National Key Basic Research Program of China (2013CB933200) ; Natural Science Foundation of Shanghai (16ZR1440600)
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/24468]
专题	中国科学院上海硅酸盐研究所
作者单位	1.[Cui Xiang-Zhi 2.Zhang Lin-Lin 3.Zeng Li-Ming 4.Zhang Xiao-Hua 5.Chen Hang-Rong 6.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China 7.[Zeng Li-Ming 8.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Cui Xiang-Zhi,Zhang Lin-Lin,Zeng Li-Ming,et al. Fabrication of Tungsten Carbide Nanoparticle-encased Graphite-like Mesoporous Carbon as a Precious Metal-free Electrocatalyst for Oxygen Reduction[J]. JOURNAL OF INORGANIC MATERIALS,2018,33(2):213, 220.
APA	Cui Xiang-Zhi,Zhang Lin-Lin,Zeng Li-Ming,Zhang Xiao-Hua,Chen Hang-Rong,&Shi Jian-Lin.(2018).Fabrication of Tungsten Carbide Nanoparticle-encased Graphite-like Mesoporous Carbon as a Precious Metal-free Electrocatalyst for Oxygen Reduction.JOURNAL OF INORGANIC MATERIALS,33(2),213.
MLA	Cui Xiang-Zhi,et al."Fabrication of Tungsten Carbide Nanoparticle-encased Graphite-like Mesoporous Carbon as a Precious Metal-free Electrocatalyst for Oxygen Reduction".JOURNAL OF INORGANIC MATERIALS 33.2(2018):213.