US 12,227,821 B2
Alloy of at least three metal elements, aggregate of alloy nanoparticles, and catalyst
Hiroshi Kitagawa, Kyoto (JP); Kohei Kusada, Kyoto (JP); Syo Matsumura, Fukuoka (JP); Tomokazu Yamamoto, Fukuoka (JP); and Xuan Quy Tran, Fukuoka (JP)
Assigned to KYOTO UNIVERSITY, Kyoto (JP)
Appl. No. 18/004,561
Filed by KYOTO UNIVERSITY, Kyoto (JP)
PCT Filed Jul. 6, 2021, PCT No. PCT/JP2021/025438
§ 371(c)(1), (2) Date Jan. 6, 2023,
PCT Pub. No. WO2022/009870, PCT Pub. Date Jan. 13, 2022.
Claims priority of application No. 2020-116140 (JP), filed on Jul. 6, 2020.
Prior Publication US 2023/0279526 A1, Sep. 7, 2023
Int. Cl. C22C 5/04 (2006.01); B22F 1/054 (2022.01); B22F 1/18 (2022.01); B22F 9/06 (2006.01); C22C 5/00 (2006.01); C22C 30/00 (2006.01)
CPC C22C 30/00 (2013.01) [B22F 1/054 (2022.01); B22F 1/18 (2022.01); B22F 9/06 (2013.01); C22C 5/00 (2013.01); B22F 2301/25 (2013.01); B22F 2304/054 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An alloy composed of three or more types of elements, wherein:
all the standard deviation of distribution in the alloy of each element constituting the alloy are each 15 atomic % or less; and
the alloy is nanoparticles having an average particle size of 0.5 to 30 nm.