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题名: Effect of alloying degree in PtSn catalyst on the catalytic behavior for ethanol electro-oxidation
作者: Zhu, Mingyuan1, 2;  Sun, Gongquan1;  Xin, Qin1, 3
通讯作者: 孙公权
关键词: Direct ethanol fuel cell ;  PtSn catalyst ;  Alloying degree ;  Ethanol electro-oxidation ;  Anode catalyst
刊名: ELECTROCHIMICA ACTA
发表日期: 2009-02-01
DOI: 10.1016/j.electacta.2008.09.035
卷: 54, 期:5, 页:1511-1518
收录类别: SCI
文章类型: Article
部门归属: 3
项目归属: 305
产权排名: 1;1
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Electrochemistry
研究领域[WOS]: Electrochemistry
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.
关键词[WOS]: FUEL-CELLS ;  STRUCTURAL CHARACTERISTICS ;  SN ELECTROCATALYSTS ;  METHANOL OXIDATION ;  TERNARY CATALYSTS ;  FORMIC-ACID ;  PART II ;  PLATINUM ;  REDUCTION ;  PERFORMANCE
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000263006100018
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/102423
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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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

Recommended Citation:
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.
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