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CATALYST, ELECTRODE, WATER ELECTROLYSIS METHOD, AND METHOD FOR PRODUCING CATALYST 新技術説明会

Foreign code F210010292
File No. (S2019-0242-N0)
Posted date 2021年1月28日
Country 世界知的所有権機関(WIPO)
International application number 2020JP017002
International publication number WO 2020230530
Date of international filing 令和2年4月20日(2020.4.20)
Date of international publication 令和2年11月19日(2020.11.19)
Priority data
  • 特願2019-090888 (2019.5.13) JP
Title CATALYST, ELECTRODE, WATER ELECTROLYSIS METHOD, AND METHOD FOR PRODUCING CATALYST 新技術説明会
Abstract A catalyst according to the present invention is characterized by being configured from a material that contains a metal sulfide and β-C3N4. It is preferable that nickel sulfide is contained as the metal sulfide. It is particularly preferable that NiS and Ni3S2 are contained as the nickel sulfide. It is also preferable that the overvoltage required for oxygen production at a current density of 10 mA/cm2 is 150 mV or less. The present invention is able to provide: a catalyst having high catalytic activity; an electrode which contains a catalyst having high catalytic activity; a water electrolysis method by which water is able to be efficiently electrolyzed; and a method for producing a catalyst, by which the above-described catalyst is able to be suitably produced.
Outline of related art and contending technology BACKGROUND ART
Water electrolyzers have attracted attention as next-generation hydrogen production systems. In water electrolyzers, an oxygen generating anode and a hydrogen generating cathode are essential, and various types of oxygen generating anodes and hydrogen generating cathodes are proposed (, for example, Non-Patent Document 1).
However, conventional oxygen generating anodes have a problem in that oxygen generation over-voltage is high.
  • Applicant
  • ※All designated countries except for US in the data before July 2012
  • NIIGATA UNIVERSITY
  • Inventor
  • YAGI, Masayuki
  • Zaki Nabeih Ahmed Zahran
IPC(International Patent Classification)
Specified countries National States: AE AG AL AM AO AT AU AZ BA BB BG BH BN BR BW BY BZ CA CH CL CN CO CR CU CZ DE DJ DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IR IS JO JP KE KG KH KN KP KR KW KZ LA LC LK LR LS LU LY MA MD ME MG MK MN MW MX MY MZ NA NG NI NO NZ OM PA PE PG PH PL PT QA RO RS RU RW SA SC SD SE SG SK SL ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN WS ZA ZM ZW
ARIPO: BW GH GM KE LR LS MW MZ NA RW SD SL SZ TZ UG ZM ZW
EAPO: AM AZ BY KG KZ RU TJ TM
EPO: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
OAPI: BF BJ CF CG CI CM GA GN GQ GW KM ML MR NE SN ST TD TG
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