▎ 摘　　要

NOVELTY - Preparing molybdenum/graphene catalyst comprises e.g. ultrasonically dispersing graphite oxide in deionized water to form 0.05-1 wt.% of graphite oxide dispersion liquid, adding chlorine and molybdenum acid (5-50 wt.%) into potassium hydroxide aqueous solution (0.5-4 M) to adjust pH value to 9-13, adding and uniformly mixing sodium borohydride and de-ionized water into graphite oxide dispersion liquid, and then reducing the solution 1-18 hours, filtering and washing with de-ionized water, and drying obtained product at 60-100 degrees C for 6-24 hours using sodium borohydride reduction method. USE - The molybdenum/graphene catalyst is useful in a lithium-air battery (claimed). ADVANTAGE - The catalyst prepared has excellent catalytic performance of lithium-air battery related electro-catalysis reaction. DETAILED DESCRIPTION - Preparing molybdenum/graphene catalyst comprises either ultrasonically dispersing graphite oxide in deionized water to form 0.05-1 wt.% of graphite oxide dispersion liquid, adding chlorine and molybdenum acid (5-50 wt.%) into a potassium hydroxide aqueous solution (0.5-4 M) to adjust pH value to 9-13, adding and uniformly mixing sodium borohydride and de-ionized water into graphite oxide dispersion liquid, where mass ratio of the sodium borohydride to the graphite oxide dispersion liquid is 1:1-1:5, and the de-ionized water to the graphite oxide dispersion liquid is 1:1-5:1, and then reducing the solution for 1-18 hours, filtering and washing obtained product by deionized water, and drying obtained product at 60-100 degrees C for 6-24 hours using sodium borohydride reduction method, or ultrasonically dispersing graphite oxide in ethylene glycol, adding chlorine and molybdenum acid into potassium hydroxide aqueous solution, uniformly mixing to adjust the pH value of the solution and then reducing at 90-150 degrees C for 3-12 hours, filtering and washing with de-ionized water, and drying obtained product using ethylene glycol reducing method.