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学科主题: 物理化学
题名: IrO2 coated TiO2 nanopore arrays electrode for SPE HBr electrolysis
作者: Zhang, Linsong1, 2;  Shao, Zhi-Gang1;  Yu, Hongmei1;  Wang, Xunying1, 2;  Yi, Baolian1
通讯作者: 邵志刚
关键词: SPE HBr electrolysis ;  Anodization ;  TiO2 nanopore arrays ;  IrO2 catalyst
刊名: JOURNAL OF ELECTROANALYTICAL CHEMISTRY
发表日期: 2013
DOI: 10.1016/j.jelechem.2012.08.008
卷: 688, 页:262-268
收录类别: SCI
文章类型: Article
部门归属: DNL03
项目归属: DNL0301
产权排名: 1,1
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: IrO2 nanoparticles coated TiO2 nanopore arrays (IrO2/TNPs) electrode has been successfully synthesized by depositing IrO2 on the surface of size-controllable TiO2 nanopore arrays (TNPs), which were fabricated by using anodic oxidation of pure titanium meshes in electrolyte solutions. X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), liner sweep voltammetry (LSV), SPE cell polarization curves and electrochemistry impedance spectroscopy (EIS) were adopted to characterize their structures, properties and performances. The IrO2/TNPs electrode has ordered microstructure and more porous surface morphology than that of IrO2/Ti electrode. The electrochemical tests showed that IrO2/TNPs electrode exhibited higher catalytic activity than IrO2/Ti electrode. And the cell voltage can be as low as 1.16 V at 1000 mA cm(-2) and 70 degrees C, which is 90 mV lower than that of the cell with IrO2/Ti electrode (1.25 V). The increase in performance is attributed to the ordered microstructure and porous surface which decrease the interface contact resistance and charge transfer resistance. (C) 2012 Elsevier B.V. All rights reserved.
关键词[WOS]: EXCHANGE MEMBRANE ELECTROLYZER ;  WATER ELECTROLYSIS ;  FUEL-CELL ;  ELECTROCHEMICAL CHARACTERIZATION ;  HYDROGEN-PRODUCTION ;  PEM ;  PERFORMANCE ;  METHANOL ;  ELECTROCATALYSTS ;  DEGRADATION
语种: 英语
WOS记录号: WOS:000317158800041
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/117583
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 Sch, Beijing 100049, Peoples R China

Recommended Citation:
Zhang, Linsong,Shao, Zhi-Gang,Yu, Hongmei,et al. IrO2 coated TiO2 nanopore arrays electrode for SPE HBr electrolysis[J]. JOURNAL OF ELECTROANALYTICAL CHEMISTRY,2013,688:262-268.
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