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Title:
SUPPORTED METAL CATALYST AND PRODUCTION METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/017771
Kind Code:
A1
Abstract:
A supported metal catalyst is provided which has excellent utilization efficiency of active metal particles. This supported metal catalyst is provided with a carrier, which is an aggregate of conductive particles, and active metal particles, which are supported dispersed on the conductive particles. The conductive particles include multiple pores; the pores have an average entrance pore size of 1-20nm, the standard deviation of the average entrance pore size is less than or equal to 50% of the average entrance pore size, and the fraction of the active metal particles supported on the surface layer region of the conductive particles is greater than or equal to 50%. The surface layer region is a region on the surface of the conductive particles, or the region in the pores with a depth no more than 15nm from the surface; the active metal particles have an average inter-particle distance of 5-20nm, and the standard deviation of tshe average inter-particle distance is less than or equal to 50% of the average inter-particle distance.

Inventors:
MIYAO TOSHIHIRO (JP)
NISHINO HANAKO (JP)
UCHIDA MAKOTO (JP)
IIYAMA AKIHIRO (JP)
KOIZUMI NAOTO (JP)
SHIBANUMA KAZUYA (JP)
TONE NAOKI (JP)
Application Number:
PCT/JP2022/029914
Publication Date:
February 16, 2023
Filing Date:
August 04, 2022
Export Citation:
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Assignee:
UNIV YAMANASHI (JP)
NIKKI UNIVERSAL CO LTD (JP)
International Classes:
H01M4/86; B01J23/42; B01J35/10; B01J37/02; B01J37/04; B01J37/10; B01J37/12; B01J37/18; B01J37/34; H01M4/88; H01M4/90; H01M4/92; H01M8/10
Domestic Patent References:
WO2014175106A12014-10-30
WO2021161929A12021-08-19
WO2021193257A12021-09-30
Foreign References:
JP2019204700A2019-11-28
JP2018010806A2018-01-18
Attorney, Agent or Firm:
SK INTELLECTUAL PROPERTY LAW FIRM et al. (JP)
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