Composite particles of core-shell structure including metal oxide particle core and platinum-group transition metal shell, and electrochemical reaction electrode material including same

Abstract

The present invention relates to composite particles of a core-shell structure including a metal oxide particle core and a platinum-group transition metal shell, and an electrode for platinum-group transition metal-based electrochemical reactions including an oxygen reduction reaction, the electrode including the composite particles. Specifically, the present invention relates to: composite particles of a core-shell structure including a platinum-group transition metal shell formed on a metal oxide particle core by a photoreduction reaction; a catalyst for platinum-group transition metal-based electrochemical reactions including an oxygen reduction reaction, the catalyst including the composite particles; an electrode for platinum-group transition metal-based electrochemical reactions including an oxygen reduction reaction; a fuel cell; and a platinum-group transition metal-based electrochemical conversion device.

Dependencies are inferred from the claim text.