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	Comparative Study of Pt/CeO2-CNTs and PtRu/C as Methanol Electro-oxidation Catalysts
	Wang Jianshe ; Wang Liucheng ; Zhao Jianhong ; Song Chengying ; Qiu Xinping ; Chen Liquan
	2010-10-12 ; 2010-10-12
关键词	direct methanol fuel cell methanol electro-oxidation co-catalysis Pt/CeO2-CNTs PtRu/C FUEL-CELL ADSORBED CO NANOPARTICLES OXIDATION PLATINUM ALLOY ELECTROCATALYSTS NANOCOMPOSITE Chemistry, Multidisciplinary
中文摘要	To gain insight into the catalytic and structural properties of as-prepared Pt/CeO2-CNT and as-received PtRu/C (E-TEK), CO stripping and constant potential electro-oxidation of CO ad-layer were conducted with Pt/CeO2-CNT and PtRu/C. Besides, cyclic voltammetry (CV) scanning and constant potential electro-oxidation of methanol were conducted as comparison. Tests with CO electro-oxidation indicated that CO ad-layer was more readily electro-oxidized on PtRu/C than on Pt/CeO2-CNT while tests with methanol electro-oxidation showed that Pt/CeO2-CNT and PtRu/C exhibited nearly the same apparent activity. To probe the structural reason behind this discrepancy, cyclic voltammetry scanning and CO stripping methods were applied to PtRu/C. Analysis based on experimental results indicates that the structural reason for the not-so-high-as-expected activity for methanol electro-oxidation on PtRu/C lies in two aspects: one is the limited specific area of Pt and the other is the decreased Pt-Ru interfaces due to Ru dissolution. The study showed that simultaneously increasing the specific area of Pt and Pt-Ru interfaces was significant for effective co-catalysis of Ru, the intrinsically more active component toward CO and methanol electro-oxidation.
语种	中文 ; 中文
出版者	SCIENCE PRESS ; BEIJING ; 16 DONGHUANGCHENGGEN NORTH ST, BEIJING 100717, PEOPLES R CHINA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/80878]
专题	清华大学
推荐引用方式 GB/T 7714	Wang Jianshe,Wang Liucheng,Zhao Jianhong,et al. Comparative Study of Pt/CeO2-CNTs and PtRu/C as Methanol Electro-oxidation Catalysts[J],2010, 2010.
APA	Wang Jianshe,Wang Liucheng,Zhao Jianhong,Song Chengying,Qiu Xinping,&Chen Liquan.(2010).Comparative Study of Pt/CeO2-CNTs and PtRu/C as Methanol Electro-oxidation Catalysts..
MLA	Wang Jianshe,et al."Comparative Study of Pt/CeO2-CNTs and PtRu/C as Methanol Electro-oxidation Catalysts".(2010).

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