▎ 摘　　要

NOVELTY - Preparing manganese sulfide/graphene oxide composite nano-rods as cathode materials for zinc ion batteries using sacrificial template comprises (i) reacting molybdenum trioxide, nitric acid, hydrogen peroxide and de-ionized water, (ii) mixing product obtained in the step (i), surfactant, manganese salt and sulfur, (iii) reacting oxidized graphene and de-ionized water, and drying, (iv) mixing product obtained in the step (iii), ethanol and aqueous ammonia, and (v) mixing powder product obtained in the step (iv), acetylene black and polyvinylidene fluoride, coating mixed slurry, and drying. USE - The method is useful for preparing manganese sulfide/graphene oxide composite nano-rods as cathode materials for zinc ion batteries using sacrificial template. ADVANTAGE - The method is simple, economical and environmentally friendly. The material has good zinc storage performance and good cycle stability. DETAILED DESCRIPTION - Preparing manganese sulfide/graphene oxide composite nano-rods as cathode materials for zinc ion batteries using sacrificial template comprises (i) mixing molybdenum trioxide, nitric acid, hydrogen peroxide and de-ionized water according to volume ratio 1:8:8:20-25, heating at 20-40 degrees C, stirring for 1-2 days, forming homogeneous solution, transferring to a reaction kettle, placing in an oven of 150-200 degrees C, continuously reacting for 12-24 hours to obtain milky white solution, alternately washing using ethanol and de-ionized water for many times, and drying the product to 40-60 degrees C to obtain nano-rod of molybdenum trioxide, (ii) dissolving the product obtained in the step (i) and surfactant in alcohol solution according to mol ratio 1:15-20, stirring for 15-60 minutes to obtain homogeneous solution A, adding manganese salt and sulfur source in alcohol solution according to mol ratio 1:1-10-20, stirring for 15-60 minutes, and forming homogeneous solution B, (iii) adding oxidized graphene to de-ionized water, ultrasonically dispersing for 2-6 hours, forming graphene oxide suspension with a solid content of 0.1-2 mg/ml, mixing the solution A and solution B with graphene oxide, obtaining the homogeneous suspension under the action of ultrasound, pouring the solution into the reaction kettle, placing in the oven of 150-200 degrees C, continuously reacting for 12-24 hours, centrifuging to obtain black solid substance, alternately washing using ethanol and de-ionized water for many times, and vacuum drying at 40-60 degrees C to obtain product, (iv) dispersing the product obtained in the step (iii) in ethanol solution, adding aqueous ammonia, stirring for 1-4 hours, centrifuging to obtain product, and respectively washing using ethanol and de-ionized water for many times to obtain composite material, and (v) taking the powder product obtained in the step (iv), acetylene black and polyvinylidene fluoride according to the ratio 8:1:1, dripping N-methylpyrrolidone, grinding by a ball mill for 2-4 hours, coating the mixed slurry on stainless steel foil, and vacuum drying at 80-110 degrees C for 10-14 hours.