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	Surface Reconstruction and Reactivity of Platinum Iron Oxide Nanoparticles
	Paul N. Duchesne ( Dalhousie Univ, Dept Chem, Halifax, NS B3H 4R2, Canada) ; Guangxu Chen ; Chen GX(陈光需) ; Xiaojing Zhao ; Nanfeng Zheng ; Zheng NF(郑南峰) ; Peng Zhang
	2014-12-11
关键词	LOCAL-STRUCTURE REDUCTION ENHANCEMENT ELECTRODES CATALYST SUPPORT
英文摘要	通讯作者地址: Zhang, P; The electrochemical stability of platinumiron oxide nanoparticles has been studied using X-ray absorption spectroscopy. Samples were monitored for changes in their surface structure and elemental composition after electrochemical cycling in acidic media, which were then correlated with their electronic properties and a thorough analysis of their electrocatalytic activities. In addition to the observation of significant surface restructuring, greater Fe content following electrochemical treatment was found to be associated with higher half-wave potentials and specific current densities (up to 0.965 +/- 0.001 V-RHE and 1.32 +/- 0.03 X 10(-5) mA cm(-2), respectively). This work highlights the potential to improve the electrocatalytic activity of platinumiron oxide nanoparticles by controlling the Fe content and platinumiron bonding, and demonstrates the critical importance of characterizing these nanocatalysts both before and after use.; NSERC Canada NSERC University of Washington Canadian Light Source Advanced Photon Source U.S. DOE DE-AC02-06CH11357 State Key Laboratory of Physical Chemistry of Solid Surfaces (Xiamen University) 201401 iChEM (Xiamen University)
语种	英语
出版者	AMER CHEMICAL SOC
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/84892]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Paul N. Duchesne ,Guangxu Chen,Chen GX,et al. Surface Reconstruction and Reactivity of Platinum Iron Oxide Nanoparticles[J],2014.
APA	Paul N. Duchesne .,Guangxu Chen.,陈光需.,Xiaojing Zhao.,Nanfeng Zheng.,...&Peng Zhang.(2014).Surface Reconstruction and Reactivity of Platinum Iron Oxide Nanoparticles..
MLA	Paul N. Duchesne ,et al."Surface Reconstruction and Reactivity of Platinum Iron Oxide Nanoparticles".(2014).

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