Electrooxidation of Ethanol on Platinum Nanocubes Supported on Multi-walled Carbon Nanotubes

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	Electrooxidation of Ethanol on Platinum Nanocubes Supported on Multi-walled Carbon Nanotubes
	Li Yan-Yan ; Rao Lu ; Jiang Yan-Xia ; Liu Zi-Li ; He Chun-Lan ; Zhang Bin-Wei ; Sun Shi-Gang ; Jiang YX(姜艳霞) ; Sun SG(孙世刚)
刊名	http://dx.doi.org/10.7503/cjcu20120468
	2013
关键词	NANOPARTICLES CATALYSTS
英文摘要	Platinum nanocubes deposited on glassy carbon ( Pt-cube/GC) or multi-walled carbon nanotubes (MWCNTs) (Pt-cube/MWCNTs) were prepared with electrochemical deposition using linear sweep voltammetry. SEM and TEM results show that the average particle size of Pt-cube/GC is 38 nm, which is composed of small particles surrounded by the Pt (111) preferred orientation. Electrochemical investigations including cyclic voltammetry and current-time curves, show that these two kinds of Pt cubes exhibit a higher catalytic activity and better stability for the oxidation of ethanol than commercial Pt/C. It is worth to note that Pt nanocubes show an onset potential shifted negatively by 168 mV than commercial Pt/C sample. Electrochemical in-situ FTIR spectroscopy was also used to study the adsorption and oxidation behavior of ethanol oxidation in acidic media on Pt-cube/MWCNTs and commercial Pt/C. The results show that negative shift of oxidation potential and increase of catalytic activity on Pt-cube/MWCNTs are mainly due to direct oxidation of ethanol to acetic acid at low potentials. In addition, the nanocubes also exhibit stronger CO adsorption.
语种	英语
出版者	HIGHER EDUCATION PRESS
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/88659]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Li Yan-Yan,Rao Lu,Jiang Yan-Xia,et al. Electrooxidation of Ethanol on Platinum Nanocubes Supported on Multi-walled Carbon Nanotubes[J]. http://dx.doi.org/10.7503/cjcu20120468,2013.
APA	Li Yan-Yan.,Rao Lu.,Jiang Yan-Xia.,Liu Zi-Li.,He Chun-Lan.,...&孙世刚.(2013).Electrooxidation of Ethanol on Platinum Nanocubes Supported on Multi-walled Carbon Nanotubes.http://dx.doi.org/10.7503/cjcu20120468.
MLA	Li Yan-Yan,et al."Electrooxidation of Ethanol on Platinum Nanocubes Supported on Multi-walled Carbon Nanotubes".http://dx.doi.org/10.7503/cjcu20120468 (2013).