Perovskite oxide catalyst having improved oxygen catalytic activity and preparation method thereof향상된 산소 촉매 활성도를 가지는 페로브스카이트 산화물 촉매 및 그 제조방법

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Disclosed is a catalyst having a perovskite structure in the form of ABO3, in which the number of ion moles at the A site has an excess ratio compared to the number of ion moles at the B site. The present invention exhibits an oxygen catalytic activity improved by about 3 times in an oxygen evolution reaction and by about 40% in an oxygen reduction reaction, compared to those of an existing LaNiO3 perovskite catalyst. Further, since the metallic conductivity is not significantly changed compared to the existing LaNiO3 perovskite oxide, there is an advantage in that a carbon support need not be used when the present invention is used as a catalyst in a battery positive electrode.
Assignee
KAIST
Country
US (United States)
Application Date
2018-05-07
Application Number
15972584
Registration Date
2022-03-29
Registration Number
11289709
URI
http://hdl.handle.net/10203/296589
Appears in Collection
MS-Patent(특허)
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