不同形貌结构的石墨烯基复合材料的可控制备及其电化学性能研究

项目名称： 不同形貌结构的石墨烯基复合材料的可控制备及其电化学性能研究

项目编号： No.21273022

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 数理科学和化学

项目作者： 岳文博

作者单位： 北京师范大学

项目金额： 82万元

中文摘要： 石墨烯由于具有优秀的导电导热能力，出色的机械强度和较大的比表面积，常被用作基本结构单元来制备性能优异的复合材料。另一方面，材料的结构和形貌对其性能也有较大的影响。以石墨烯为基底，通过各种合成技术制备的复合材料具有形貌结构的可塑性。本项目拟根据石墨烯基复合材料在电化学领域中的不同应用，采用原位和非原位合成技术制备各种特殊形貌结构的石墨烯基复合材料，包括利用化学镀的方法制备石墨烯表面高度分散的金属纳米颗粒或金属氧化物镀层，并研究其电催化或电容性能。利用模板法或静电自组装技术制备（层状）石墨烯基介孔金属氧化物或石墨烯包覆的介孔金属氧化物，并研究其作为锂电池电极的电化学性能。本项目的研究工作在理论上丰富了石墨烯复合材料的合成方法学，同时通过对其结构形貌的控制，优化了其相应的电化学性能，开拓了其在新能源领域的应用。

中文关键词： 石墨烯基复合物；三明治结构；介孔结构；锂电池；燃料电池

英文摘要： Graphene has been used as basic structural unit to synthesize many interesting composites due to its high electrical and thermal conductivities, unique mechanical properties and large surface areas. On the other hand, the structure and morphology of materials can also have an influence on their properties. The structure and morphology of graphene-based materials synthesized by using graphene as a substrate can be controlled through various synthetic methods. The aim of this project is to synthesize graphene-based materials with various structure and morphology by using in-situ and ex-situ methods according to their different electrochemical applications, including the preparation of well-dispersed metal nanoparticles or metal oxides layers on graphene via electroless plating, and study of their electrocatalytic or capacitance properties, the preparation of (layered) graphene-based mesoporous metal oxides or graphene-encapsulated mesoporous metal oxides via template methodand or electrostatic self-assembly technique, and study of their electrochemical properties as anode materials for lithium-ion battery. This research project is going to develop a new synthetic methodology of graphene-based materials with controllable morphology, and to study their electrochemical performances for future applications in the fiel

英文关键词： graphene-based composite；sandwich structure；mesoporous structure；lithium-ion battery；fuel cell