Dehydrated Sucrose Nanoparticles as Spacers for Graphene–Ionic Liquid Supercapacitor Electrodes

The addition of dehydrated sucrose nanoparticles 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 s...

Full description

Saved in:
Bibliographic Details
Published inACS sustainable chemistry & engineering Vol. 4; no. 12; pp. 7167 - 7174
Main Authors Bozym, David J, Korkut, Sibel, Pope, Michael A, Aksay, Ilhan A
Format Journal Article
LanguageEnglish
Published American Chemical Society 05.12.2016
Subjects
Supercapacitor
Energy density
Room-temperature ionic liquid
Sucrose
Spacer
Online AccessGet full text

Cover

More Information
Summary:The addition of dehydrated sucrose nanoparticles 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 ∼13.3 Wh/kg, accounting for the total mass of all electrode components.
ISSN:2168-0485
2168-0485
DOI:10.1021/acssuschemeng.6b02050