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	Development of composite anode electrocatalyst for direct methanol fuel cells
	Li, Xiaoxia ; Qiu, Xinping ; Zhao, Long ; Chen, Liquan ; Zhu, Wentao
	2010-10-12 ; 2010-10-12 ; OCT
关键词	Methanol electrooxidation CO electrooxidation Surface hydrophilicity WO3 Direct methanol fuel cells MULTIWALLED CARBON NANOTUBES CO MONOLAYER OXIDATION CATALYSTS ELECTROOXIDATION PLATINUM SUPPORT NANOPARTICLES DMFC SIZE AREA Electrochemistry
中文摘要	Different effects of support hydrophilicity and metal-oxide on the performance of Pt-based catalysts were investigated with the aim of improving the mass activities toward methanol electrooxidation. Both potentiodynamic and potentiostatic measurements revealed that improved surface hydrophilicity of multi-wall carbon nanotubes (MWCNTs) could promote the dispersion of Pt nanoparticles and, consequently, promote the Pt utilization and reduce the polarization in methanol electrooxidation. In addition, WO3 was shown to play a supportive role in enhancing catalytic activity. The interaction between Pt and WO3 was examined by CO-stripping and CO oxidation transient experiments. The results suggested that the activity and the kinetics of monolayer COads electrooxidation of Pt nanoparticles are enhanced by the adjacent WO3 via a bifunctional mechanism, which accounts for improved activity in methanol electrooxidation.
语种	英语 ; 英语
出版者	SPRINGER ; DORDRECHT ; VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/80938]
专题	清华大学
推荐引用方式 GB/T 7714	Li, Xiaoxia,Qiu, Xinping,Zhao, Long,et al. Development of composite anode electrocatalyst for direct methanol fuel cells[J],2010, 2010, OCT.
APA	Li, Xiaoxia,Qiu, Xinping,Zhao, Long,Chen, Liquan,&Zhu, Wentao.(2010).Development of composite anode electrocatalyst for direct methanol fuel cells..
MLA	Li, Xiaoxia,et al."Development of composite anode electrocatalyst for direct methanol fuel cells".(2010).

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