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题名: Direct ethanol PEM fuel cells: The case of platinum based anodes
作者: Song, SQ;  Zhou, WJ;  Zhou, ZH;  Jiang, LH;  Sun, GQ;  Xin, Q;  Leontidis, V;  Kontou, S;  Tsiakaras, P
关键词: direct ethanol fuel cells ;  PtSn/C ;  PtRu/C ;  ethanol electrooxidation
刊名: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
发表日期: 2005-08-01
DOI: 10.1016/j.ijhydene.2004.11.006
卷: 30, 期:9, 页:995-1001
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Electrochemistry ;  Energy & Fuels
研究领域[WOS]: Chemistry ;  Electrochemistry ;  Energy & Fuels
英文摘要: PtSn/C catalysts were prepared by the direct decoration of Pt/C with Sn through a modified poly process. XRD results showed there existed obvious SnO2 in this catalyst, different from the PtSn/C prepared by co-precipitation, Sn presenting in different valence. The techniques of cyclic voltammetry, anode polarization curve and single direct ethanol fuel cell (DEFC) tests were used to evaluate and compare the electrocatalytic activities to ethanol oxidation over PtSn/C prepared by different preparation procedure and over the commercial PtRu/C catalyst. The experimental results showed that PtSn/C presents higher electrocatalytic activity than PtRu/C. The results also showed that, compared to the PtSn/C prepared by co-precipitation, PtSn/C in this investigation exhibits a similar initial activity but a lower activity along with the current density increment, probably due to its poor electronic conductivity and part coverage of platinum active sites resulting from SnO2. It was found from the GC analysis results that PtSn/C can oxidize ethanol molecules to a deeper extent than PtRu/C, leading to both a higher fuel utilization coefficient and a higher fuel cell efficiency. (c) 2005 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.
关键词[WOS]: PT-RU ;  METHANOL OXIDATION ;  MASS-SPECTROMETRY ;  ELECTRODES ;  ELECTROOXIDATION ;  CATALYSTS ;  ENHANCEMENT ;  PERFORMANCE ;  CARBON ;  AREA
语种: 英语
WOS记录号: WOS:000229710200008
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/139882
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.CAS, Dalian Inst Chem Phys, Direct Alcohol Fuel Cell Lab, Dalian 116023, Peoples R China
2.CAS, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
3.Univ Thessaly, Sch Engn, Dept Mech Engn, Thessaly 38334, Greece

Recommended Citation:
Song, SQ,Zhou, WJ,Zhou, ZH,et al. Direct ethanol PEM fuel cells: The case of platinum based anodes[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2005,30(9):995-1001.
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