METHOD FOR THE PREPARATION OF HIGHLY DISPERSED SUPPORTED PT CATALYST

摘要

A method for preparing a highly dispersed Pt supported catalyst having improved size of Pt particles and improved degree of dispersion is provided. A method for preparing a highly dispersed Pt supported catalyst comprises the steps of: (A) adding a Pt precursor and a carbon support to a solvent, and sonicating the mixture in a frequency range from 30 to 60 Hz; (B) adding a sodium alkoxide solution having a Pt precursor to sodium alkoxide ratio ranging from 1:4 to 1:8 to a mixed solution comprising Pt and carbon support obtained after the sonication, and heat-treating the mixed solution in a temperature range from 5 to 80 deg.C; and (C) adding an aqueous hydrochloric acid solution to a mixed solution obtained after the heat treating step, agitating the mixed solution in an agitator, and filtering and cleaning the agitated material.