Patent ID: 7981826

Claim:
A supported catalyst prepared by: dissolving a cation exchange polymer in a solvent, to prepare a solution containing the cation exchange polymer; mixing the solution with a catalytic metal precursor or a solution containing the catalytic metal precursor, to produce a mixture; heating the mixture greater than 70° C. and less than 90° C., after adjusting a pH of the mixture to about 8 or higher, using a base, to obtain a resultant; adding a reducing agent to the resultant and stirring to reduce the catalytic metal precursor, to obtain another resultant; mixing the another resultant with a porous catalyst support; adding a precipitating agent to the mixed another resultant, to form precipitates; and filtering and drying the precipitates, to prepare the supported catalyst, wherein the supported catalyst includes the porous catalyst support, catalytic metal particles adsorbed to the catalyst support, and the cation exchange polymer, and the content of the cation exchange polymer is 1 to 10 parts by weight based on the 100 parts by weight of the porous catalyst support, and wherein the average particle size of catalytic metal particles included in the supported catalyst is from 2 nm to 5 nm.