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Preparation, characterization of ZrOxNy/C and its application in PEMFC as an electrocatalyst for oxygen reduction
Liu, Gang; Zhang, Hua Min; Wang, Mei Ri; Zhong, He Xiang; Chen, Jian
关键词Zirconium Oxynitride Noble-metal Free Electrocatalyst Oxygen Reduction Reaction Cathode Fuel Cell
刊名JOURNAL OF POWER SOURCES
2007-10-25
DOI10.1016/j.jpowsour.2007.07.067
172期:2页:503-510
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Electrochemistry ; Energy & Fuels
研究领域[WOS]Electrochemistry ; Energy & Fuels
关键词[WOS]SUPPORTED PT-NI ; FUEL-CELL ; CATALYSTS ; ALLOY ; ELECTRODES ; CATHODE ; NANOPARTICLES ; NITRIDES ; CARBIDES ; PHASE
英文摘要In this paper, a noble-metal-free electrocatalyst based on carbon-supported zirconium oxynitride (ZrOxNy/C) was prepared by ammonolysis of carbon-supported zirconia (ZrO2/C) at 950 degrees C and investigated as cathode electrocatalyst towards oxygen reduction reaction (ORR) in PEMFCs. The electrocatalyst was characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM) techniques. The catalytic activity of the catalyst towards ORR was investigated by using the rotating disk electrode (RDE) technique in an O-2-saturated 0.5 M H2SO4 solution. The ZrOxNy/C electrocatalyst presented attractive catalytic activity for ORR. The onset potential of ZrOxNy/C electrocatalyst for oxygen reduction was 0.7 V versus RHE and the four-electron pathway for the ORR was achieved on the surface of ZrOxNy/C electrocatalyst. The ZrOxNy/C electrocatalyst showed a comparatively good cell performance to ORR in PEMFCs, especially when operated at a comparatively high temperature. (c) 2007 Elsevier B.V. All rights reserved.
语种英语
WOS记录号WOS:000250654700002
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/140739
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Lab PEMFC Key Mat & Technol, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
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Liu, Gang,Zhang, Hua Min,Wang, Mei Ri,et al. Preparation, characterization of ZrOxNy/C and its application in PEMFC as an electrocatalyst for oxygen reduction[J]. JOURNAL OF POWER SOURCES,2007,172(2):503-510.
APA Liu, Gang,Zhang, Hua Min,Wang, Mei Ri,Zhong, He Xiang,&Chen, Jian.(2007).Preparation, characterization of ZrOxNy/C and its application in PEMFC as an electrocatalyst for oxygen reduction.JOURNAL OF POWER SOURCES,172(2),503-510.
MLA Liu, Gang,et al."Preparation, characterization of ZrOxNy/C and its application in PEMFC as an electrocatalyst for oxygen reduction".JOURNAL OF POWER SOURCES 172.2(2007):503-510.
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