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题名: Comparison of different promotion effect of PtRu/C and PtSn/C electrocatalysts for ethanol electro-oxidation
作者: Li, Huanqiao;  Sun, Gongquan;  Cao, Lei;  Jiang, Luhua;  Xin, Qin
通讯作者: 孙公权
关键词: PtRu/C ;  PtSn/C ;  promotion effect ;  ethanol oxidation
刊名: ELECTROCHIMICA ACTA
发表日期: 2007-08-01
卷: 52, 期:24, 页:6622-6629
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: Well dispersed PtSn/C, PtRu/C and Pt/C electrocatalysts were synthesized by a modified polyol process and characterized by X-ray diffraction (XRD), transmission electron microscope (TEM) and inductively coupled plasma-atomic emission spectrometry techniques. XRD patterns show that Ru induces the contraction of Pt lattice parameter while Sn makes the Pt crystal lattice extended. Ethanol oxidation activities on the catalysts were studied via cyclic voltammetry (CV) and chronoamperometry (CA) methods at room temperature. It is found that the electrode potential plays an important role in the electrochemical behavior of ethanol oxidation on PtRu/C and PtSn/C catalysts. In the lower potential region, PtSn/C possesses higher performance for ethanol oxidation, while in the higher potential region PtRu/C is more active. The different promotion effects of PtSn/C and PtRu/C to ethanol oxidation can be explained by the structural effect and modified bi-functional mechanism in different potential region. Single cell test of a direct ethanol fuel cell (DEFC) was also carried out to elucidate the promotion effect of PtRu/C and PtSn/C catalysts on the ethanol oxidation at 90 degrees C. (c) 2007 Elsevier Ltd. All rights reserved.
关键词[WOS]: PT-SN ELECTROCATALYSTS ;  FUEL-CELL PERFORMANCE ;  CHEMICAL-COMPOSITION ;  METHANOL OXIDATION ;  OXYGEN REDUCTION ;  ANODE CATALYSTS ;  PLATINUM ;  ELECTRODES ;  CO ;  ACID
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000248783300004
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/99281
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, Direct 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:
Li, Huanqiao,Sun, Gongquan,Cao, Lei,et al. Comparison of different promotion effect of PtRu/C and PtSn/C electrocatalysts for ethanol electro-oxidation[J]. ELECTROCHIMICA ACTA,2007,52(24):6622-6629.
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