Method for preparing fuel cell catalyst comprising porous carrier having adjusted physical properties, fuel cell catalyst, and membrane-electrode assembly

A method of manufacturing a fuel cell catalyst, the method comprising:

• a first step of preparing a porous support;
• and
• a second step of manufacturing a fuel cell catalyst by embedding a metal catalyst in the porous support of the first step,
• wherein among pores of the porous support, a unit volume of pores with a size of 4 to 8 nm is between 0.40 and 1.00 cm3/g, BET specific surface area of the pores with a size of 4 to 8 nm is 300 to 700 m2/g, and a proportion of corresponding pores (S) in a total BET specific surface area is 50 to 90%;
• a unit volume of pores with a size of less than 4 nm is 0.02 to 0.20 cm3/g, BET specific surface area of the pores with a size of less than 4 nm is 10 to 80 m2/g, and a proportion of corresponding pores (S) in a total BET specific surface area is less than 0 to 10%;
• and a unit volume of pores with a size of more than 8 nm is 0.20 to 2.20 cm3/g, BET specific surface area of the pores with a size of more than 8 nm is 40 to 400 m2/g, and a proportion of corresponding pores (S) in a total BET specific surface area is 10 to 40%.