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

Author
D. J. Bozym, S. Korkut, M. A. Pope, I.A. Aksay
Publication Year
2016

Type

Journal Article
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.
Keywords
chemistry, performance, Energy, carbon, Engineering, Supercapacitor, Spacer, Sucrose, Room-temperature ionic liquid, density, high-surface-area, graphite oxide, functionalized graphene, electrochemical supercapacitors, intrinsic capacitance, energy density, sheets, paper, Science & Technology - Other Topics
Journal
ACS Sustainable Chemistry & Engineering
Volume
4
Pages
7167-7174
Date Published
12/2016
Type of Article
Article
ISBN
2168-0485
Accession Number
WOS:000389497900102
Short Title
ACS Sustain. Chem. Eng.ACS Sustain. Chem. Eng.
Alternate Journal
ACS Sustain. Chem. Eng.
Documents
pu_16_04_bozym.pdf

ISI Document Delivery No.: EE3OCTimes Cited: 1Cited Reference Count: 44Bozym, David J. Korkut, Sibel Pope, Michael A. Aksay, Ilhan A.Pope, Michael/0000-0002-5793-3392Pacific Northwest National Laboratory [DE-AC05-76RL0183]; Army Research Laboratory (DOD) SBIR [W9111QX-11-C-0079]; Army Research Office (ARO)/Multidisciplinary Research Initiative (MURI) [W911NF-09-1-0476]This work was supported in part by Pacific Northwest National Laboratory (operated for the U.S. Department of Energy by Battelle) via Grant DE-AC05-76RL0183. S.K. was supported in part by the Army Research Laboratory (DOD) SBIR under Contract W9111QX-11-C-0079. M.A.P. acknowledges additional support from an Army Research Office (ARO)/Multidisciplinary Research Initiative (MURI) under Grant W911NF-09-1-0476.1730Amer chemical socWashington