多酸-导电聚合物/石墨烯多孔杂化材料的一锅合成及超级电容性能研究

项目名称： 多酸-导电聚合物/石墨烯多孔杂化材料的一锅合成及超级电容性能研究

项目编号： No.21471080

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 数理科学和化学

项目作者： 李顺利

作者单位： 南京师范大学

项目金额： 90万元

中文摘要： 本课题拟将石墨烯、多金属氧簇和导电聚合物三者结合来合成多孔的三元超级电容器电极材料，该材料可以同时提供双电层电容和赝电容。核心思路是利用具有氧化还原性的多酸氧化聚合导电聚合物单体，多酸自身变成还原型多酸，利用还原型多酸的还原性自发还原氧化石墨烯，制备出导电聚合物/多酸/石墨烯三元多孔杂化材料。整个反应在一锅中合成，减少了反应步骤，反应过程中没有任何废料产生，是绿色反应体系。多金属氧簇不仅作为反应的氧化还原剂，同时作为赝电容的电极材料提高了电容器的比电容，在石墨烯片层中引入多酸还可以阻止石墨烯堆叠和聚集，有效提高材料的比表面积，导电聚合物提高电极材料的导电性。本项目将探讨改变三元杂化材料的组成、反应温度、反应时间以及不同测试条件对超级电容性能的影响，总结规律，寻求比表面积大、比电容高、电导率高，稳定性好的电极材料。为超级电容器电极材料的研制和开发应用提供理论和实验依据。

中文关键词： 多金属氧簇；导电聚合物；石墨烯；一锅合成；超级电容器

英文摘要： This project aims to combine grapheme, polyoxometalate and conductive polymer to synthesize porous ternary supercapacitor electrode materials, which can provide both electric double layer capacitor and pseudo-capacitor. Core idea is to use polyoxometalate with redox properties to oxide conductive polymer monomer during polyoxometalate itself being reduced, and employ reductive polyoxometalate to spontaneously reduct graphene oxide to prepare conductive polymer/ polyoxometalate/ grapheme porous ternary hybrid materials. The whole reaction is in the one pot synthesis, which can reduce reaction step and shows a green reaction system without any produce waste. Polyoxometalate not only acts as a redox agent, but aslo a capacitor electrode material for pseudo-capacitance to improve the specific capacitance. Furthermore, polyoxometalates are introduced into graphene sheets, which may prevent stacking of graphene and aggregation, improve the specific surface area of materials and conductivity of electrode material formed by conductive polymer. The project will explore the changing composition of the ternary hybrid materials, reaction temperature, reaction time and different test conditions on the performance of supercapacitor, summed up the law to seek excellent electrode materials with a large surface area, high capacitance, high conductivity, good stability, which can provide theoretical and experimental basis for development and application of supercapacitor electrode materials.

英文关键词： polyoxometalate;conducting polymer;graphene;one-pot synthesis;supercapacitor