An efficient Co-N-C oxygen reduction catalyst with highly dispersed Co   sites derived from a ZnCo bimetallic zeolitic imidazolate framework

doi:10.1039/c6ra04771h

CORC > 北京大学 > 化学与分子工程学院

	An efficient Co-N-C oxygen reduction catalyst with highly dispersed Co sites derived from a ZnCo bimetallic zeolitic imidazolate framework
	Wang, Xiaojuan ; Fan, Xinxin ; Lin, Honghong ; Fu, He ; Wang, Teng ; Zheng, Jie ; Li, Xingguo
刊名	RSC ADVANCES
	2016
关键词	METAL-ORGANIC FRAMEWORK HIGH-SURFACE-AREA MEMBRANE FUEL-CELLS NANOPOROUS CARBONS POROUS CARBON ELECTROCATALYSTS CHALLENGES GRAPHENE CAPTURE FE
DOI	10.1039/c6ra04771h
英文摘要	In this work we report a highly efficient Co based catalyst for the oxygen reduction reaction (ORR) with highly dispersed Co sites on N-doped carbon. The catalyst is derived from a ZnCo bimetallic metal organic framework (MOF) by heat treatment in an inert atmosphere at 1000 degrees C. Zn is simultaneously eliminated during the pyrolysis due to its high volatility at high temperature, yielding a highly porous structure with homogeneous Co loading. Another effect of Zn is to disperse Co in the MOF precursor, which effectively inhibits the aggregation of Co after pyrolysis. The best ORR performance is achieved when 5% Zn is substituted by Co in the MOF precursor. The resulting catalyst shows a high half wave potential of 0.90 V vs. reversible hydrogen electrode in 0.1 M KOH solution, which is mainly attributed to the high dispersion of the ORR active Co sites.; National Natural Science Foundation of China [U1201241, 11375020, 51431001, 21321001]; SCI(E); EI; ARTICLE; zhengjie@pku.edu.cn; xgli@pku.edu.cn; 44; 37965-37973; 6
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/437886]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Wang, Xiaojuan,Fan, Xinxin,Lin, Honghong,et al. An efficient Co-N-C oxygen reduction catalyst with highly dispersed Co sites derived from a ZnCo bimetallic zeolitic imidazolate framework[J]. RSC ADVANCES,2016.
APA	Wang, Xiaojuan.,Fan, Xinxin.,Lin, Honghong.,Fu, He.,Wang, Teng.,...&Li, Xingguo.(2016).An efficient Co-N-C oxygen reduction catalyst with highly dispersed Co sites derived from a ZnCo bimetallic zeolitic imidazolate framework.RSC ADVANCES.
MLA	Wang, Xiaojuan,et al."An efficient Co-N-C oxygen reduction catalyst with highly dispersed Co sites derived from a ZnCo bimetallic zeolitic imidazolate framework".RSC ADVANCES (2016).