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综述了Fe_3O_4、Fe_2O_3、NiO、Co_3O_4、CoO、CuO等多种金属氧化物通过水热、溶剂热、共沉淀、原子层沉积、溶胶凝胶及高温退火和微波辅热等多种合成策略和制备方法得到不同尺寸如纳米级和微米级,不同形貌如颗粒状、棒状、孔状、球状、层状、花状等不同维度金属氧化物以不同的方式如嵌入、卷入、植入修饰石墨烯,形成了层状结构、三明治结构、中空核壳状结构和混合结构等形式的金属氧化物/石墨烯复合物.并把它们应用于锂离子电池的负极材料,其电化学性能如容量、倍率、循环等性能相对于纯石墨烯和纯金属氧化物得到了提升.最后分析了金属氧化物/石墨烯复合物的制备材料、制备方法对最终产物的影响,讨论了金属氧化物和石墨烯的协同效应和复合机理以及石墨烯复合物性能的影响,展望了金属氧化物/石墨烯复合物作为锂离子电池电极材料的应用和开发前景.
The synthesis and preparation of various metal oxides such as Fe_3O_4, Fe_2O_3, NiO, Co_3O_4, CoO and CuO by hydrothermal, solvothermal, coprecipitation, atomic layer deposition, sol-gel and high temperature annealing and microwave assisted heating Methods Different sizes of metal oxides with different sizes such as nano-scale and micron-scale, different shapes such as granular, rod, hole, sphere, layer and flower were obtained in different ways such as embedding, Alkene to form a metal oxide / graphene composite in the form of a layered structure, a sandwich structure, a hollow core-shell structure and a mixed structure, and they are applied to the negative electrode material of a lithium ion battery whose electrochemical properties such as capacity, Graphene and pure metal oxides have been improved.Finally, the effects of preparation materials and preparation methods of metal oxide / graphene composites on the final products were analyzed. The effects of metal oxides and graphenes The synergistic effect and the mechanism of recombination and the properties of graphene composites, the application of metal oxide / graphene composite as electrode materials for lithium ion batteries And development prospects.