Catalyst composition, method for fabricating the same and fuel cell including the same

A method for fabricating a catalyst composition, comprising:

• (A) mixing a catalyst carrier and a reducing agent to form a solution;
• (B) adding a palladium precursor and a second metal precursor into the solution to perform a reduction reaction and thus to deposit palladium and a second metal on the surface of the catalyst carrier, wherein the second metal is selected from the group consisting of gold, platinum, ruthenium, nickel, silver and manganese;
• and
• (C) performing a first heat treatment on the catalyst carrier with the palladium and the second metal deposited thereon, and performing a second heat treatment in the presence of a reducing gas to form a metal solid solution on the surface of the catalyst carrier, wherein the metal solid solution includes the palladium and the second metal.