• 文献标题:   Dehydrated Sucrose Nanoparticles as Spacers for Graphene-Ionic Liquid Supercapacitor Electrodes
  • 文献类型:   Article
  • 作  者:   BOZYM DJ, KORKUT S, POPE MA, AKSAY IA
  • 作者关键词:   supercapacitor, spacer, sucrose, roomtemperature ionic liquid, energy density
  • 出版物名称:   ACS SUSTAINABLE CHEMISTRY ENGINEERING
  • ISSN:   2168-0485
  • 通讯作者地址:   Princeton Univ
  • 被引频次:   3
  • DOI:   10.1021/acssuschemeng.6b02050
  • 出版年:   2016

▎ 摘  要

The addition of dehydrated sucrose nano particles increases the gravimetric capacitance of electrochemical double-layer capacitor electrodes produced via the evaporative consolidation of graphene oxide-water-ionic liquid gels by more than two-fold. Dehydrated sucrose adsorbs onto graphene oxide and serves as a spacer, preventing the graphene oxide from restacking during solvent evaporation. Despite 61 wt % of the solids being electrochemically inactive dehydrated sucrose nanoparticles, the best electrodes achieved an energy density of similar to 13.3 Wh/kg, accounting for the total mass of all electrode components.