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Enhanced electrocatalytic performance for methanol oxidation on Pt-TiO2/ITO electrode under UV illumination
Zhang Hongmei; Zhou Weiqiang; Du Yukou; Yang Ping; Wang Chuanyi; Xu Jingkun
2010
发表期刊INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
ISSN0360-3199
卷号35期号:24页码:13290-13297
摘要Pt is one of the most important electrode materials employed in direct methanol fuel cell, and many efforts have been directed to improving its electrocatalytic performance. In this work, Pt-TiO2 nanocomposites are successfully prepared by a sol-gel method. As revealed by TEM, Pt nanoparticles with an average size of 2.6 nm are well uniformly dispersed on porous TiO2. XRD structural characterization indicates that Pt possesses a face centered cubic crystal structure while TiO2 is in the format of both rutile and anatase phases. The electrochemical performance of as-prepared nanocomposite electrode (Pt-TiO2/ITO) is evaluated by studying the electrocatalytic oxidation of methanol in an alkaline medium with or without UV illumination. Comparative experiments evince that the electrochemical performance of Pt-TiO2/ITO for methanol electrooxidation is markedly improved under UV illumination. Under UV illumination, moreover, the poisoning resistance of Pt-TiO2/ITO for methanol electrooxidation is significantly improved, as supported by the results of time-coursed current measurements. (C) 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.
关键词Methanol Electrooxidation Uv Illumination Pt Nanoparticles Titanium Oxide
学科领域Chemistry ; Electrochemistry ; Energy & Fuels
DOI10.1016/j.ijhydene.2010.09.025
收录类别SCI
WOS记录号WOS:000284967100019
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被引频次:56[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.xjipc.cas.cn/handle/365002/2816
专题环境科学与技术研究室
作者单位Soochow Univ, Coll Chem Chem Engn & Mat Sci, Suzhou 215123, Peoples R China;Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Urumqi 830011, Peoples R China;Tufts Univ, Dept Chem, Medford, MA 02155 USA;Jiangxi Sci & Technol Normal Univ, Jiangxi Key Lab Organ Chem, Nanchang 330013, Peoples R China
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Zhang Hongmei,Zhou Weiqiang,Du Yukou,et al. Enhanced electrocatalytic performance for methanol oxidation on Pt-TiO2/ITO electrode under UV illumination[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2010,35(24):13290-13297.
APA Zhang Hongmei,Zhou Weiqiang,Du Yukou,Yang Ping,Wang Chuanyi,&Xu Jingkun.(2010).Enhanced electrocatalytic performance for methanol oxidation on Pt-TiO2/ITO electrode under UV illumination.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,35(24),13290-13297.
MLA Zhang Hongmei,et al."Enhanced electrocatalytic performance for methanol oxidation on Pt-TiO2/ITO electrode under UV illumination".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 35.24(2010):13290-13297.
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