Modified multi-walled carbon nanotube/Ag nanoparticle composite catalyst for the oxygen reduction reaction in alkaline solution

IMR OpenIR

	Modified multi-walled carbon nanotube/Ag nanoparticle composite catalyst for the oxygen reduction reaction in alkaline solution
	Y. H. Cheng; W. Y. Li; X. Z. Fan; J. G. Liu; W. G. Xu; C. W. Yan
	2013
发表期刊	Electrochimica Acta
ISSN	0013-4686
卷号	111 页码:635-641
摘要	The modified multi-walled carbon nanotubes (m-MWCNTs)/Ag composite catalyst (Ag/m-MWCNTs) is prepared successfully by a facile in situ growth method. The physicochemical properties of Ag/m-MWCNTs are characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and electrochemical measurements. The results demonstrate that the dispersed Ag nanoparticles are anchored on the surface of m-MWCNTs with a mean diameter about 10.6 nm. The as-prepared Ag/m-MWCNTs catalyst shows high electrocatalytic activity toward the oxygen reduction reaction (ORR) in alkaline media. The ORR is dominated by four-electron pathway in the limiting diffusion zone, which is similar to the commercial Pt/C catalyst. The high catalytic activity of the Ag/m-MWCNTs can ascribe to the dispersed Ag nanoparticles on the m-MWCNTs which not only facilitate the ORR process, but also may promote the decomposition or further reduction of HO2- formed at the surfaces of the MWCNTs. (C) 2013 Elsevier Ltd. All rights reserved.
部门归属	[cheng, yuanhang ; li, wenyue ; fan, xinzhuang ; liu, jianguo ; xu, weiguo ; yan, chuanwei] chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china. ; fan, xz (reprint author), chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china. ; yuanhang1988@yeah.net ; xzfan@imr.ac.cn ; cwyan@imr.ac.cn
关键词	Silver Nanoparticles Multi-walled Carbon Nanotubes Electrocatalyst Oxygen Reduction Reaction Alkaline Solution Supported Ag Nanoparticles Chlorine-soda Electrolyte Rotating-ring-disk Zinc-air Batteries Platinum Nanoparticles Electrochemical Reduction Silver Nanoparticles Fuel-cells Thin-film Media
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/72392
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. H. Cheng,W. Y. Li,X. Z. Fan,et al. Modified multi-walled carbon nanotube/Ag nanoparticle composite catalyst for the oxygen reduction reaction in alkaline solution[J]. Electrochimica Acta,2013,111:635-641.
APA	Y. H. Cheng,W. Y. Li,X. Z. Fan,J. G. Liu,W. G. Xu,&C. W. Yan.(2013).Modified multi-walled carbon nanotube/Ag nanoparticle composite catalyst for the oxygen reduction reaction in alkaline solution.Electrochimica Acta,111,635-641.
MLA	Y. H. Cheng,et al."Modified multi-walled carbon nanotube/Ag nanoparticle composite catalyst for the oxygen reduction reaction in alkaline solution".Electrochimica Acta 111(2013):635-641.