標題: A facile route to prepare PdPt alloys for ethanol electro-oxidation in alkaline electrolyte
作者: Lin, Sheng-Chieh
Chen, Jing-Yu
Hsieh, Yi-Fan
Wu, Pu-Wei
材料科學與工程學系
Department of Materials Science and Engineering
關鍵字: Catalyst;Displacement reaction;PdPt;Ethanol electro-oxidation
公開日期: 31-一月-2011
摘要: We adopted a displacement reaction in acidic solution that enabled the spontaneous reduction of Pd and Pt cations in conjunction with corrosive dissolution of Ni. The composition for the PdPt was adjusted by varying the concentration of Pd and Pt cations. From SEM images and XRD patterns, the PdPt formed an fcc alloy uniformly deposited on the Ni substrate. Electro-oxidation of ethanol was conducted in alkaline electrolyte for samples of Pd, Pt, and PdPt alloys. In cyclic voltammetric profiles, the Pd(77)Pt(23) revealed the highest electrocatalytic ability in both apparent current and mass activity, followed by Pd(87)Pt(13), Pd, and Pt. Similar behaviors were observed in life time measurements in which stable performances for ethanol electro-oxidation were obtained. (C) 2010 Elsevier B.V. All rights reserved.
URI: http://dx.doi.org/10.1016/j.matlet.2010.10.006
http://hdl.handle.net/11536/25863
ISSN: 0167-577X
DOI: 10.1016/j.matlet.2010.10.006
期刊: MATERIALS LETTERS
Volume: 65
Issue: 2
起始頁: 215
結束頁: 218
顯示於類別:期刊論文


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