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Direct ethanol PEM fuel cells: The case of platinum based anodes
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
2005-08-01
DOI10.1016/j.ijhydene.2004.11.006
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
关键词[WOS]PT-RU ; METHANOL OXIDATION ; MASS-SPECTROMETRY ; ELECTRODES ; ELECTROOXIDATION ; CATALYSTS ; ENHANCEMENT ; PERFORMANCE ; CARBON ; AREA
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.
语种英语
WOS记录号WOS:000229710200008
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文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/139882
专题中国科学院大连化学物理研究所
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
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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.
APA Song, SQ.,Zhou, WJ.,Zhou, ZH.,Jiang, LH.,Sun, GQ.,...&Tsiakaras, P.(2005).Direct ethanol PEM fuel cells: The case of platinum based anodes.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,30(9),995-1001.
MLA Song, SQ,et al."Direct ethanol PEM fuel cells: The case of platinum based anodes".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 30.9(2005):995-1001.
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