本发明的目的是提供一种具有优异的氧还原反应活性的催化剂。 本发明是含有一种负载在催化剂载体，该催化剂载体上的催化剂金属的催化剂，根据一个或电解质715平方米/ g载体或每催化剂的催化金属的载体重量的比表面积的覆盖 有小于0.5，和在所述催化剂载体每重量的酸基团的量小于0.75毫摩尔/克载体是催化剂。

The present invention aims to provide a catalyst having excellent oxygen reduction reaction activity.
The present invention provides a catalyst comprising a catalytic metal to be supported on the catalyst carrier and the catalyst support, the coating of the specific surface area per support weight of said catalyst to said catalytic metal according to one or electrolyte ^715m 2 / g carrier or rate is less than 0.5, and the amount of acid groups per support weight of the catalyst is not more than 0.75 mmol / g carrier, a catalyst.