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

Citation:

Bozym, D. J. ; Korkut, S. ; Pope, M. A. ; Aksay, I. A. Dehydrated Sucrose Nanoparticles as Spacers for Graphene-Ionic Liquid Supercapacitor Electrodes. ACS Sustainable Chemistry & Engineering 2016, 4 7167-7174.

Date Published:

Dec

Type of Article:

Article

ISBN Number:

2168-0485

Accession Number:

WOS:000389497900102

Abstract:

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.

Short Title:

ACS Sustain. Chem. Eng.ACS Sustain. Chem. Eng.