Invention Grant
- Patent Title: Oxygen reduction catalyst
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Application No.: US16471397Application Date: 2017-12-22
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Publication No.: US10658676B2Publication Date: 2020-05-19
- Inventor: Kunchan Lee , Yoshinori Yamato , Kenichiro Ota , Akimitsu Ishihara
- Applicant: SHOWA DENKO K.K. , NATIONAL UNIVERSITY CORPORATION YOKOHAMA NATIONAL UNIVERSITY
- Applicant Address: JP Tokyo JP Yokohama-shi, Kanagawa
- Assignee: SHOWA DENKO K.K.,NATIONAL UNIVERSITY CORPORATION YOKOHAMA NATIONAL UNIVERSITY
- Current Assignee: SHOWA DENKO K.K.,NATIONAL UNIVERSITY CORPORATION YOKOHAMA NATIONAL UNIVERSITY
- Current Assignee Address: JP Tokyo JP Yokohama-shi, Kanagawa
- Agency: Sughrue Mion, PLLC
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@2686b5eb
- International Application: PCT/JP2017/046109 WO 20171222
- International Announcement: WO2018/117255 WO 20180628
- Main IPC: H01M4/00
- IPC: H01M4/00 ; H01M4/90 ; B01J27/24 ; H01M4/36 ; H01M4/48 ; H01M8/10
Abstract:
An object of the invention is to provide an oxygen reduction catalyst composed of a titanium oxynitride having high oxygen reduction capacity. The oxygen reduction catalyst of the invention is a titanium oxynitride that has a nitrogen element content of 8.0 to 15 mass %, has a crystal structure of anatase titanium dioxide in a powder X-ray diffraction measurement, and has a signal intensity ratio N—Ti—N/O—Ti—N in an X-ray photoelectron spectroscopic analysis of in the range of 0.35 to 0.70.
Public/Granted literature
- US20190386319A1 OXYGEN REDUCTION CATALYST Public/Granted day:2019-12-19
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