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题名: Effect of the Sn(I)/Sn(IV) redox couple on the activity of PtSn/C for ethanol electro-oxidation
作者: Zhu Mingyuan1, 2;  Sun Gongquan1;  Li Huanqiao1, 2;  Cao Lei1, 2;  Xin Qin1
关键词: platinum ;  tin ;  supported catalyst. ;  direct ethanol fuel cell ;  ethanol electro-oxidation ;  tin redox couple
刊名: CHINESE JOURNAL OF CATALYSIS
发表日期: 2008-08-01
卷: 29, 期:8, 页:765-770
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Applied ;  Chemistry, Physical ;  Engineering, Chemical
研究领域[WOS]: Chemistry ;  Engineering
英文摘要: The PtSn/C-Ni catalyst was prepared by adding Ni(NO3)(2) in the reduction process of SnCl2, and H2PtCl6 with ethylene glycol. The coexistence of the Sn(II) /Sn(IV) redox couple was detected in the catalyst by temperature-programmed reduction experiments. Linear sweep voltammetry, single cell test, and CO stripping voltammetry experiments showed that the ethanol electro-oxidation activity and CO tolerance can be obviously enhanced by Increasing the Sn(H)/Sn(IV) ratio in the catalyst. The reason might be attributed to that the Sn(II)/Sn(IV) redox couple accelerates the transfer rate of (OH)(ads) and then promotes the consequent oxidation of CO-like intermediates that are produced in the ethanol electro-oxidation process on the surface of Pt.
关键词[WOS]: PT-SN ELECTROCATALYSTS ;  METHANOL FUEL-CELL ;  ANODIC-OXIDATION ;  H-2/CO MIXTURES ;  CO ;  CATALYSTS ;  ELECTRODES ;  REDUCTION ;  RUTHENIUM ;  PLATINUM
语种: 英语
WOS记录号: WOS:000259341000017
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/140877
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, Liaoning, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

Recommended Citation:
Zhu Mingyuan,Sun Gongquan,Li Huanqiao,et al. Effect of the Sn(I)/Sn(IV) redox couple on the activity of PtSn/C for ethanol electro-oxidation[J]. CHINESE JOURNAL OF CATALYSIS,2008,29(8):765-770.
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