Verfahren zur Herstellung eines Elektrokatalysators.

摘要

Disclosed herein is an electrocatalyst comprising a support (1) and active catalyst metal particles (2) supported thereon in which an average interparticle distance of the metal particles is at least 15 nm. The overlapping of the territories (3) around the particles between the adjacent particles diminishes thereby so that the desired activity value can be obtained without the decrease of the specific activity even when the particle diameter of the catalyst particles is considerably decreased.