Method for the synthesis of bimetallic catalyst particles made of platinum and another metal and its use in an electrochemical hydrogen production method

摘要

The subject of the present invention is a method for synthesizing particles of a bimetallic catalyst mainly comprising platinum and at least one second metal, wherein the salt or complex mainly comprising the first platinum, and the second Of a pure reducing agent that is in liquid form under ambient temperature and pressure conditions (ATPC) comprising: chemical reduction with at least one second salt or complex based on In the presence of preparing a mixture comprising a salt or complex based on the first platinum as a main component and the second salt or complex based on the second metal. A step defined as being equal to 25 ° C. and 100 kPa, respectively; and allowing the mixture to reach a temperature approximately between the freezing temperature of water and the freezing temperature of the reducing agent. Is the method.