石墨烯具有优异的电学、力学和热学性能,过渡金属氧化物具有高的比容量,石墨烯与过渡金属氧化物复合作为电极材料,充分发挥了石墨烯与过渡金属氧化物在电极材料应用方面的优势,在确保高比容量的同时具有良好的导电性能与优异的循环稳定性。综述了过渡金属氧化物/石墨烯复合材料研究进展,首先介绍了过渡金属氧化物/石墨烯复合材料的4种模型结构,即表面固定模型、叠层模型、包裹模型和混合模型,然后从三维纳米结构、杂元素掺杂、使用多元过渡金属氧化物、构建碳壳包裹结构等四方面对过渡金属氧化物/石墨烯复合材料功能化修饰,构建高性能电极材料作了详细分析,最后对过渡金属氧化物/石墨烯复合材料的发展前景作了展望。
Graphene(rGO) has excellent electrical,mechanical and thermal properties,and transition metal oxides with high specific capacity,rGO with metal oxide composite as electrode material,which play the advantage of rGO and metal oxide in the application of electrode materials,ensuring high capacity,good conductivity and excellent cycle stability.The research progress of transition metal oxide and rGO composites was reviewed.Firstly,four kinds of model structures of the composites were introduced,i.e.surface fixation model,stacking model,wrapping model and hybrid model.Then,the composites were further modified from four aspects,i.e.3D nanostructure,doping of miscellaneous elements,using multiple transition metal oxides and constructing carbon shell wrapping structure to build high-performance electrode materials.Finally,the development prospect of the composites was prospected.
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基金资助
广东省市场监督管理局科技项目(2018CZ17);广东省市场监督管理局科技项目(2018PT05)