▎ 摘　　要

NOVELTY - The material has a selenide loaded on a carbon-based carrier i.e. carbon nano tube and/or graphene, where mass ratio of selenide-indium and carbon-based carrier is 1:0.5-2. Mass ratio of the carbon nano tube and the graphene is 3:20-10:3. USE - Selenium-carbon-copper composite material for use as a cathode catalyst and a catalytically active platinum carbon during electric catalytic oxygen reduction process. ADVANTAGE - The material is simple to prepare and easy to popularize. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a selenium-carbon-copper composite material preparation method. DESCRIPTION OF DRAWING(S) - The drawing shows a graphical view illustrating current density and potential of a selenium-carbon-copper composite material.