Preparation and characterization of PtSn/C anode electrocatalysts for direct ethanol fuel cell

	Preparation and characterization of PtSn/C anode electrocatalysts for direct ethanol fuel cell
	Jiang, LH ; Sun, GQ ; Zhou, ZH ; Xin, Q
刊名	catalysis today
	2004-09-01
卷号	93-5 页码:665-670
关键词	electrocatalyst direct ethanol fuel cell cyclic voltammetry
产权排序	1;1
英文摘要	highly active ptsn/c catalyst was prepared by a polyol method. the catalyst was reduced in h-2/ar atmosphere at 600 degreesc for 2 h in order to obtain different metallic phase. tem images show uniform dispersion of spherical metal nanoparticles with average diameters of 1.8 and 3.9 nm for the as-prepared and treated catalysts, respectively. uv-vis spectrophotometry is employed to monitor the preparation process and the results indicate that pt-sn complex formed once the precursors of pt and sn were mixed together. the structure properties of the samples were characterized using x-ray diffraction. the results show that after reduction, the catalyst tends to form ptsn alloy. tpr experiment results show that sn exists in multivalent state in the as-prepared sample while only zero-valence sn was detected in the treated sample, while it could not be excluded that the multivalent tin existed in the treated sample. cyclic voltammetry (cv) technique and single direct ethanol fuel cell (defc) tests indicate that the as-prepared catalyst possesses superior catalytic activity for ethanol oxidation to the treated sample. the results suggest that pt and multivalent sn are the active species for ethanol oxidation. (c) 2004 elsevier b.v. all rights reserved.
WOS标题词	science & technology ; physical sciences ; technology
类目[WOS]	chemistry, applied ; chemistry, physical ; engineering, chemical
研究领域[WOS]	chemistry ; engineering
关键词[WOS]	platinum-tin ; catalysts ; methanol ; electrooxidation ; oxidation ; performance ; surfaces ; alloys
收录类别	ISTP ; SCI
原文出处	true
语种	英语
WOS记录号	WOS:000223973200095
公开日期	2010-11-30
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/81239]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, Direct Alcohol Fuel Cell Lab, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.Headwaters Nanokineti, Lawrenceville, NJ 08648 USA 4.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Jiang, LH,Sun, GQ,Zhou, ZH,et al. Preparation and characterization of PtSn/C anode electrocatalysts for direct ethanol fuel cell[J]. catalysis today,2004,93-5:665-670.
APA	Jiang, LH,Sun, GQ,Zhou, ZH,&Xin, Q.(2004).Preparation and characterization of PtSn/C anode electrocatalysts for direct ethanol fuel cell.catalysis today,93-5,665-670.
MLA	Jiang, LH,et al."Preparation and characterization of PtSn/C anode electrocatalysts for direct ethanol fuel cell".catalysis today 93-5(2004):665-670.