PROCESS FOR PRODUCING PLATINUM-TRANSITION METAL CATALYST PARTICLES

摘要

The invention relates to a process for producing platinum-transition metal catalyst particles, characterized by the following steps: A) provision of MxNy catalyst particles, where M = Pt (platinum), N is an element of the group of transition metals with the exception of platinum or any mixed crystal or any intermetallic compound of two or more elements of the group of transition metals, x and y are the proportions by weight of the abovementioned catalyst constituents M, N, where 0 < x < 1 and 0 < y < 1 and x + y = 1, B) treatment of the catalyst particles provided as per step A in or with an acid, C) deposition of Pt on the catalyst particles treated as per step B.