US 11,752,490 B2
Supported metal catalyst and method for producing same
Chisato Arata, Tokyo (JP); Hajime Kashima, Tokyo (JP); Katsuyoshi Kakinuma, Kofu (JP); Makoto Uchida, Kofu (JP); and Akihiro Iiyama, Kofu (JP)
Assigned to Nihon Kagaku Sangyo, Co, Ltd., Tokyo (JP); and University of Yamanishi, Yamanashi (JP)
Appl. No. 17/286,785
Filed by Nihon Kagaku Sangyo Co., Ltd., Tokyo (JP); and University of Yamanashi, Kofu (JP)
PCT Filed Oct. 16, 2019, PCT No. PCT/JP2019/040661
§ 371(c)(1), (2) Date Apr. 19, 2021,
PCT Pub. No. WO2020/080400, PCT Pub. Date Apr. 23, 2020.
Claims priority of application No. 2018-197385 (JP), filed on Oct. 19, 2018.
Prior Publication US 2021/0339224 A1, Nov. 4, 2021
Int. Cl. B01J 21/06 (2006.01); B01J 23/14 (2006.01); B01J 35/00 (2006.01); B01J 35/10 (2006.01); B01J 37/08 (2006.01); H01M 4/90 (2006.01)
CPC B01J 21/063 (2013.01) [B01J 23/14 (2013.01); B01J 35/006 (2013.01); B01J 35/1014 (2013.01); B01J 35/1038 (2013.01); B01J 35/1061 (2013.01); B01J 35/1066 (2013.01); B01J 37/08 (2013.01); H01M 4/9075 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A support and metal catalyst, comprising:
a support powder; and
metal fine particles supported on the support powder; wherein:
the support powder is an aggregate of support fine particles;
the support fine particles are fine particles of oxide compound and has a chained portion structured by a plurality of crystallites being fusion bonded to form a chain;
the crystallites have a size of 10 to 30 nm;
the support powder has a void;
the void includes a secondary pore having a pore diameter of more than 25 nm and 80 nm or less determined by BJH method; and
a volume of the secondary pore per unit volume of the support fine particles structuring the support powder is 0.313 cm3/cm3 or more, wherein:
the void includes a primary pore having the pore diameter of 25 nm or less; and
a value of volume of the primary pore/volume of the secondary pore is 0.80 or less.