Electrocatalytic effect of the edge planes sites at graphite electrode on the vanadium redox couples

IMR OpenIR

	Electrocatalytic effect of the edge planes sites at graphite electrode on the vanadium redox couples
	Wei, Guanjie; Su, Wei; Wei, Zengfu; Fan, Xinzhuang; Liu, Jianguo; Yan, Chuanwei; Fan, XZ; Liu, JG (reprint author), Chinese Acad Sci, Inst Met Res, Liaoning Engn Res Ctr Adv Battery Mat, Shenyang 110016, Peoples R China.
	2016-06-20
发表期刊	ELECTROCHIMICA ACTA
ISSN	0013-4686
卷号	204 页码:263-269
摘要	Compared with the basal-planes of highly oriented pyrolytic graphite (HOPG), the edge-planes of HOPG exhibit a significantly enhanced electrochemical performance, indicating of the better electrocatalytic activity of the edge-planes at graphite electrode toward vanadium redox reactions, especially for the positive reaction. In order to further investigate the electrocatalytic activity of the edge plane sites, glass carbon (GC) modified by graphite powders (GP) with different particle sizes, which possess different content of the edge-planes, are used as electrodes and their physicochemical properties such as the morphology, microstructure, surface composition, and specific surface area, in addition to the corresponding electrochemical characteristics have been characterized systematically. The total electrochemical activity toward vanadium redox reaction increases greatly with the decrease of the particle sizes for GP, which mainly attributes to the increasing surface area and exposed edge plane sites. It is worth note that a large surface area often means abundant edge plane sites, and it is mainly in favor of the enhancement of the current response, while the proportion of the active area such as the edge-planes in total surface area to a large extent determines the electrocatalytic activity. (C) 2016 Elsevier Ltd. All rights reserved.
部门归属	[wei, guanjie ; fan, xinzhuang ; liu, jianguo ; yan, chuanwei] chinese acad sci, inst met res, liaoning engn res ctr adv battery mat, shenyang 110016, peoples r china ; [su, wei ; wei, zengfu] guangdong power grid co ltd, elect power res inst, guangzhou 510080, guangdong, peoples r china
关键词	Edge Planes Graphite Powders Electrocatalytic Activity Electrochemical Response Vanadium Redox Couples
学科领域	Electrochemistry
资助者	National Basic Research Program of China [2010CB227203]
收录类别	sci
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/75827
专题	中国科学院金属研究所
通讯作者	Fan, XZ; Liu, JG (reprint author), Chinese Acad Sci, Inst Met Res, Liaoning Engn Res Ctr Adv Battery Mat, Shenyang 110016, Peoples R China.
推荐引用方式 GB/T 7714	Wei, Guanjie,Su, Wei,Wei, Zengfu,et al. Electrocatalytic effect of the edge planes sites at graphite electrode on the vanadium redox couples[J]. ELECTROCHIMICA ACTA,2016,204:263-269.
APA	Wei, Guanjie.,Su, Wei.,Wei, Zengfu.,Fan, Xinzhuang.,Liu, Jianguo.,...&Liu, JG .(2016).Electrocatalytic effect of the edge planes sites at graphite electrode on the vanadium redox couples.ELECTROCHIMICA ACTA,204,263-269.
MLA	Wei, Guanjie,et al."Electrocatalytic effect of the edge planes sites at graphite electrode on the vanadium redox couples".ELECTROCHIMICA ACTA 204(2016):263-269.