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题名: Simple synthesis of Pt/TiO2 nanotube arrays with high activity and stability
作者: Zhang, Changkun1, 2;  Yu, Hongmei1;  Li, Yongkun1, 2;  Fu, Li1, 2;  Gao, Yuan1, 2;  Song, Wei1;  Shao, Zhigang1;  Yi, Baolian1
关键词: TiO2 nanotube arrays ;  Pt ;  Fuel cells ;  Durability ;  Hydrogen reduction
刊名: JOURNAL OF ELECTROANALYTICAL CHEMISTRY
发表日期: 2013-07-15
DOI: 10.1016/j.jelechem.2013.04.012
卷: 701, 页:14-19
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Analytical ;  Electrochemistry
研究领域[WOS]: Chemistry ;  Electrochemistry
英文摘要: A simple and efficient method was demonstrated for preparing the Pt/TiO2 nanotube arrays by H-2 reduction. The effects of the reduction atmospheres and temperatures on Pt catalysts preparation were investigated. The well dispersion of Pt catalysts supported onto the TiO2 nanotube array exhibited favorable electrochemical performance and excellent durability. After 2000 potential cycles between 0 and 1.2 V vs. RHE, the electrochemical surface area of 350-Pt-H-TNTs electrode (Pt catalysts reduced by high purity H2 at 350 degrees C) decreased by 26% compared with 68% for JM 20% Pt/C after 800 cycles. Meanwhile, the 450-Pt-H-TNTs electrode (Pt catalysts reduced by high purity H2 at 450 degrees C) showed no decrease in the electrochemical surface area except for a little loss in the reduction of surface oxides after 2000 potential cycles. Furthermore, the electrochemical performance of 450-Pt-H-TNTs electrode is still stable after holding at 1.6V vs. RHE for 100 h. (C) 2013 Elsevier B.V. All rights reserved.
关键词[WOS]: MEMBRANE FUEL-CELLS ;  TIO2 NANOTUBE ;  ELECTRODE-REACTIONS ;  CATALYSTS ;  HYDROGEN ;  OXYGEN ;  ELECTROCATALYSTS ;  DURABILITY ;  SPILLOVER ;  OXIDATION
语种: 英语
WOS记录号: WOS:000321540200003
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/137567
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Fuel Cell Syst & Engn Lab, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China

Recommended Citation:
Zhang, Changkun,Yu, Hongmei,Li, Yongkun,et al. Simple synthesis of Pt/TiO2 nanotube arrays with high activity and stability[J]. JOURNAL OF ELECTROANALYTICAL CHEMISTRY,2013,701:14-19.
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