| abstract |
The invention provides a new preparation method of a graphene/nano cobaltosic oxide composite material. The preparation method provided by the invention comprises the following steps of: firstly mixing certain amounts of graphene, cobaltous acetate, ammonium oxalate, polyethylene glycol 1000 and triethanolamine and grinding for a certain time by adopting a ball mill, then fully drying a mixture, and then fully calcining the dried mixture in a muffle furnace, wherein the obtained product is namely the graphene/nano cobaltosic oxide composite material. The preparation method provided by the invention is simple in operation process, good in controllability and low in cost, and industrial production can be easily realized without complex chemical treatment or expensive equipment. |