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题名: Improvement of Cathode Performance on Pt-CeOx by Optimization of Electrochemical Pretreatment Condition for PEFC Application
作者: Fugane, Keisuke1, 2;  Mori, Toshiyuki1, 2;  Ou, Ding Rong3;  Yan, Pengfei2;  Ye, Fei4;  Yoshikawa, Hideki5;  Drennan, John6
刊名: LANGMUIR
发表日期: 2012-12-04
DOI: 10.1021/la302912r
卷: 28, 期:48, 页:16692-16700
收录类别: SCI
文章类型: Article
类目[WOS]: Chemistry, Multidisciplinary ;  Chemistry, Physical ;  Materials Science, Multidisciplinary
研究领域[WOS]: Chemistry ;  Materials Science
英文摘要: Pt-CeOx/C electrocatalysts for the improvement of oxygen reduction reaction (ORR) activity on cathode were prepared by a combined process of precipitation and co-impregnation methods. The Pt-CeOx/C electrocatalysts pretreated by the optimized electrochemical conditioning process showed high ORR activity as compared with homemade Pt/C electrocatalyst. Also, it showed high stability in the cyclic voltammetry (CV) test up to 1000 cycles into 0.5 M H2SO4 aqueous solution. On the basis of the data of cyclic voltammogram of 30 cyclic sweeps, X-ray photoelectron spectroscopy, electron energy loss spectroscopy, high resolution transmission electron microscope image, and selected area electron diffraction analysis, it is concluded that the Pt-CeOx heterointerface involving the defect cluster formed by using optimized electrochemical pretreatment conditions on Pt in Pt-CeOx/C electro-catalyst contributes to the promotion of ORR activity and retention of its stability in long CV tests up to 1000 cycles.
关键词[WOS]: OXYGEN REDUCTION REACTION ;  CARBON ALLOY CATALYSTS ;  FUEL-CELLS ;  ELECTROCATALYSTS
语种: 英语
WOS记录号: WOS:000311872900024
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142891
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.Hokkaido Univ, Grad Sch Chem Sci & Engn, Kita Ku, Sapporo, Hokkaido 0608628, Japan
2.Natl Inst Mat Sci, Hetero Interface Design Grp, Global Res Ctr Environm & Energy Based Nanomat Sc, Tsukuba, Ibaraki 3050044, Japan
3.Chinese Acad Sci, Dalian Inst Chem Phys, Lab Fuel Cells, Dalian 116023, Liaoning, Peoples R China
4.Dalian Univ Technol, Sch Mat Sci & Engn, Dalian 116024, Liaoning, Peoples R China
5.Natl Inst Mat Sci, SPring 8, NIMS Beamline Stn, Mikazuki, Hyogo 6795148, Japan
6.Univ Queensland, Ctr Microscopy & Microanal, Brisbane, Qld 4072, Australia

Recommended Citation:
Fugane, Keisuke,Mori, Toshiyuki,Ou, Ding Rong,et al. Improvement of Cathode Performance on Pt-CeOx by Optimization of Electrochemical Pretreatment Condition for PEFC Application[J]. LANGMUIR,2012,28(48):16692-16700.
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