▎ 摘　　要

NOVELTY - Amorphous composite material comprises graphene oxide and amorphous metal hydroxide, where the amorphous metal hydroxide is supported on the graphene oxide, the graphene oxide is a sheet material with a thickness of 0.5-2 nm, and the amorphous metal hydroxide is a nanocluster. USE - The amorphous composite material is used in a catalyst, which is used in a highly selective 2e-oxygen reduction electrocatalyst, which is used for preparing hydrogen peroxide (all claimed). ADVANTAGE - The material shows 95% hydrogen peroxide selectivity in the oxygen reduction electrochemical test. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) a method for preparing the amorphous composite material, comprising adding a precipitation agent to the solution containing the metal salt and graphene oxide, adjusting the pH to 8.5-9.5, and stirring at room temperature to obtain the product; (2) a catalyst comprising at least one of the amorphous composite material prepared by the above-mentioned method; (3) a highly selective 2e-oxygen reduction electrocatalyst comprising the catalyst comprising at least one of the amorphous composite material prepared by the above-mentioned method; and (4) a method for preparing hydrogen peroxide by electrolytic reduction of oxygen, comprising using the cathode catalyst for the electrolytic reduction of oxygen in the aqueous electrolysis cell to prepare hydrogen peroxide, where the cathode catalyst comprises at least one of the amorphous composite material.