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 |
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.
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