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题名: Ethanol electrooxidation on carbon supported PtSn catalyst: In situ TRFTIR study
作者: Wang Qi1;  Sun Gong-Quan1;  Jiang Lu-hua1;  Zhu Ming-Yuan1;  Wang Guo-Xiong1;  Xin Qin1;  Sun Shi-Gang2;  Chen Qing-Song2;  Jiang Yan-Xia2;  Chen Sheng-Pei2
关键词: direct ethanol fuel cells ;  PtSn/C ;  ethanol electrooxidation ;  TRFTIRS
刊名: SPECTROSCOPY AND SPECTRAL ANALYSIS
发表日期: 2008
卷: 28, 期:1, 页:47-50
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Technology
类目[WOS]: Spectroscopy
研究领域[WOS]: Spectroscopy
英文摘要: Carbon supported PtSn catalyst (PtSn/C) was prepared by a modified polyol method and characterized by means of XRD. It was showed that the metal particle size was 2.2 nm and the unit cell parameter increased compared with Pt/C. In situ time-resolved Fourier transform infrared spectroscopy (TRFTIRS) was used to study the electrooxidation of ethanol on PtSn/C catalyst. CO was the main poison species adsorbed on the active sites to inhibit the further reaction of ethanol electrooxidation. Acetaldehyde and acetic acid were found to be the products of ethanol electrooxidation as competing reactions with ethanol dissociation when the potential was up to 0.3 V, which reduced the poisoning effect. The selectivity of acetic acid among the products was improved with the increase in the potential and reaction time. CO2, which appeared at 0.4 V I was the final product and yielded from the oxidation of COL. The catalytic mechanism of PtSn/C towards ethanol electrooxidation was analyzed based on the results.
关键词[WOS]: ANODE CATALYSTS ;  FUEL-CELLS ;  OXIDATION ;  PLATINUM ;  ELECTROCATALYSTS ;  ELECTRODES ;  CO
语种: 英语
WOS记录号: WOS:000252809900012
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/140960
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, Dalian 116023, Peoples R China
2.Xiamen Univ, Dept Chem, State Key Lab Phys ChemSolid Surfaces, Xiamen 361005, Peoples R China

Recommended Citation:
Wang Qi,Sun Gong-Quan,Jiang Lu-hua,et al. Ethanol electrooxidation on carbon supported PtSn catalyst: In situ TRFTIR study[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2008,28(1):47-50.
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