Effect of alloying degree in PtSn catalyst on the catalytic behavior for ethanol electro-oxidation

	Effect of alloying degree in PtSn catalyst on the catalytic behavior for ethanol electro-oxidation
	Zhu, Mingyuan 1,2; Sun, Gongquan 1; Xin, Qin 1,3
刊名	electrochimica acta
	2009-02-01
卷号	54 期号:5 页码:1511-1518
关键词	Direct ethanol fuel cell PtSn catalyst Alloying degree Ethanol electro-oxidation Anode catalyst
通讯作者	孙公权
产权排序	1;1
英文摘要	carbon-supported binary ptsn catalysts with varied alloying degree were synthesized in different processes and denoted as ptsn/c-b, ptsn/c-eg and ptsno(2)/c, respectively. x-ray diffraction (xrd) characterizations showed that ptsn/c-b catalyst displayed the highest alloying degree, while ptsno(2)/c catalyst had the lowest one among these samples. x-ray photoelectron spectroscopy (xps) results revealed that the non-alloyed sn existed in an oxidized state on the surfaces of these catalysts. by evaluating the electrocatalytic activity and analyzing the final products of ethanol oxidation reaction (eor) on these catalysts, it was found that ptsno(2)/c catalyst enhanced the products yield of acetic acid products and ptsn/c-b catalyst promoted the entire activity for eor. it was proposed that non-alloyed sno(2) species enhanced the bi-functional mechanism, whereas ptsn alloy phase strengthened the electronic effect of ptsn/c catalyst. (c) 2008 elsevier ltd. all rights reserved.
WOS标题词	science & technology ; physical sciences
类目[WOS]	electrochemistry
研究领域[WOS]	electrochemistry
关键词[WOS]	fuel-cells ; structural characteristics ; sn electrocatalysts ; methanol oxidation ; ternary catalysts ; formic-acid ; part ii ; platinum ; reduction ; performance
收录类别	SCI
原文出处	false
语种	英语
WOS记录号	WOS:000263006100018
公开日期	2010-11-30
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/102423]
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, Dirrect Alcohol Fuel Cell Lab, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.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	Zhu, Mingyuan,Sun, Gongquan,Xin, Qin. Effect of alloying degree in PtSn catalyst on the catalytic behavior for ethanol electro-oxidation[J]. electrochimica acta,2009,54(5):1511-1518.
APA	Zhu, Mingyuan,Sun, Gongquan,&Xin, Qin.(2009).Effect of alloying degree in PtSn catalyst on the catalytic behavior for ethanol electro-oxidation.electrochimica acta,54(5),1511-1518.
MLA	Zhu, Mingyuan,et al."Effect of alloying degree in PtSn catalyst on the catalytic behavior for ethanol electro-oxidation".electrochimica acta 54.5(2009):1511-1518.