ICCAS OpenIR
Influence of sputtering power on oxygen reduction reaction activity of zirconium oxides prepared by radio frequency reactive sputtering
Liu, Yan1; Ishihara, Akimitsu2; Mitsushima, Shigenori2; Ota, Ken-ichiro2
2010
Source PublicationELECTROCHIMICA ACTA
ISSN0013-4686
Volume55Issue:3Pages:1239-1244
AbstractZirconium oxides (ZrO(2-x)) have been investigated as new cathodes for direct methanol fuel cells without platinum. ZrO(2-x) films were prepared using a radio frequency (RF) magnetron sputtering at RF powers from 75 to 175 W. The influence of the RF power on the catalytic activity for the oxygen reduction reaction (ORR) and properties of the ZrO(2-x) films were examined. The ORR activity of the ZrO(2-x) catalyst increased with the RF power in the range we studied. The onset potential for ORR over ZrO(2-x) deposited at 175 W was 0.88 V vs RHE. In addition, the relationship between the ORR activity and the composition, crystallinity, electric conductivity, as well as the ionization potential has been investigated. The zirconium oxide with an oxygen defected state and the higher electric conductivity showed the higher ORR activity, and the electrocatalytic activity for ORR increased with the decreasing in the ionization potential of the ZrO(2-x) catalyst. (c) 2009 Elsevier Ltd. All rights reserved.
KeywordZirconium Oxides Non-platinum Cathode Radio Frequency Power Oxygen Reduction Reaction Polymer Electrolyte Fuel Cells
DOI10.1016/j.electacta.2009.10.042
Indexed BySCI
Language英语
WOS IDWOS:000274020200088
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:29[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/69426
Collection中国科学院化学研究所
Corresponding AuthorLiu, Yan
Affiliation1.Peking Univ, Coll Chem & Mol Engn, State Key Lab Struct Chem Unstable & Stable Speci, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China
2.Yokohama Natl Univ, Chem Energy Lab, Yokohama, Kanagawa 2408501, Japan
Recommended Citation
GB/T 7714
Liu, Yan,Ishihara, Akimitsu,Mitsushima, Shigenori,et al. Influence of sputtering power on oxygen reduction reaction activity of zirconium oxides prepared by radio frequency reactive sputtering[J]. ELECTROCHIMICA ACTA,2010,55(3):1239-1244.
APA Liu, Yan,Ishihara, Akimitsu,Mitsushima, Shigenori,&Ota, Ken-ichiro.(2010).Influence of sputtering power on oxygen reduction reaction activity of zirconium oxides prepared by radio frequency reactive sputtering.ELECTROCHIMICA ACTA,55(3),1239-1244.
MLA Liu, Yan,et al."Influence of sputtering power on oxygen reduction reaction activity of zirconium oxides prepared by radio frequency reactive sputtering".ELECTROCHIMICA ACTA 55.3(2010):1239-1244.
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