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学科主题物理化学
High Pt utilization catalyst prepared by ion exchange method for direct methanol fuel cells
Zhu, Shan1,2,3; Wang, Suli1,2; Jiang, Luhua1,2; Xia, Zhangxun1,2,3; Sun, Hai1,2; Sun, Gongquan1,2; Sun GQ(孙公权)
关键词Direct Methanol Fuel Cell Pt Utilization Lifetime Ion Exchange Triple-phase Zone
刊名INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
2012-10-01
DOI10.1016/j.ijhydene.2012.07.043
37期:19页:14543-14548
收录类别SCI
文章类型Article
部门归属DNL03
项目归属DNL0305
产权排名1,1
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Physical ; Electrochemistry ; Energy & Fuels
研究领域[WOS]Chemistry ; Electrochemistry ; Energy & Fuels
关键词[WOS]POLYMER ELECTROLYTE MEMBRANE ; TRIPLE-PHASE-BOUNDARY ; PULSE ELECTRODEPOSITION ; OXYGEN REDUCTION ; CARBON-BLACKS ; PLATINUM ; NANOPARTICLES ; PERFORMANCE ; ELECTROCATALYSTS ; FABRICATION
英文摘要A Pt-Nafion/C catalyst is synthesized through a modified ion-exchange method, in which [Pt(NH3)(2)](2+) cations exchange with H+ ions of Nafion/C composites and are reduced by H-2. Based on the results from transmission electron microscopy and inductively coupled plasma atomic emission spectrometry, it is found that the average size of Pt particles is around 2.3 nm and the Pt loading is about 1.8 wt% in the Pt-Nafion/C catalyst. Although the Pt mass activities (MAs) toward oxygen reduction reaction tested in half cells are similar, when used as cathode catalyst for a direct methanol fuel cell, the Pt MA as high as 4.36 A mg(Pt)(-1) are achieved for the Pt-Nafion/C catalyst at 825 mV, which is 6 times higher than that of the Pt/C catalyst. The enhanced Pt utilization could be attributed to the defined location of Pt nanoparticles in the triple phase zones in electrode. Crown Copyright (C) 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
语种英语
WOS记录号WOS:000309493600070
引用统计
被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/117825
专题中国科学院大连化学物理研究所
通讯作者Sun GQ(孙公权)
作者单位1.Dalian Natl Lab Clean Energy, Dalian, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian, Peoples R China
3.Chinese Acad Sci, Grad Univ, Beijing, Peoples R China
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GB/T 7714
Zhu, Shan,Wang, Suli,Jiang, Luhua,et al. High Pt utilization catalyst prepared by ion exchange method for direct methanol fuel cells[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2012,37(19):14543-14548.
APA Zhu, Shan.,Wang, Suli.,Jiang, Luhua.,Xia, Zhangxun.,Sun, Hai.,...&孙公权.(2012).High Pt utilization catalyst prepared by ion exchange method for direct methanol fuel cells.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,37(19),14543-14548.
MLA Zhu, Shan,et al."High Pt utilization catalyst prepared by ion exchange method for direct methanol fuel cells".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 37.19(2012):14543-14548.
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