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Title: Probing the electrolyte infiltration behaviour of activated carbon supercapacitor electrodes by in situ neutron scattering using aqueous NaCl as electrolyte

Journal Article · · Carbon
 [1]; ORCiD logo [2];  [1]; ORCiD logo [3]; ORCiD logo [3];  [1]
  1. Lehigh Univ., Bethlehem, PA (United States)
  2. Univ. of California-Riverside, Riverside, CA (United States)
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
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In situ contrast-matched neutron scattering was used to probe the electrolyte infiltration behavior of activated supercapacitor carbon electrodes using an aquoeus 1 M NaCl solution. It was found that only about 20% of the pore volume was infiltrated at chemical equilibrium. The partial infiltration can be attributed to the co-existence of hydrophilic and hydrophilic pores. As a result, the study suggests that for the achievement of optimal capacitance, supercapacitor electrodes should be evacuated before electrolyte infiltration.

Research Organization:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Energy Frontier Research Centers (EFRC) (United States). Energy Frontier Research in Extreme Environments (EFree)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC05-00OR22725; SC0001057
OSTI ID:
1436046
Alternate ID(s):
OSTI ID: 1548453
Journal Information:
Carbon, Vol. 136, Issue C; ISSN 0008-6223
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 13 works
Citation information provided by
Web of Science

References (12)

Carbon-based materials as supercapacitor electrodes journal January 2009
Supercapacitive Swing Adsorption of Carbon Dioxide journal February 2014
Capacitive deionization as an electrochemical means of saving energy and delivering clean water. Comparison to present desalination practices: Will it compete? journal April 2010
Mesoporous carbons with KOH activated framework and their hydrogen adsorption journal January 2007
Novel insight into neutral medium as electrolyte for high-voltage supercapacitors journal January 2012
High voltage supercapacitors using hydrated graphene film in a neutral aqueous electrolyte journal November 2011
High voltage supercapacitor built with seaweed carbons in neutral aqueous electrolyte journal December 2010
Relation between the Ion Size and Pore Size for an Electric Double-Layer Capacitor journal March 2008
In Situ Small Angle Neutron Scattering Revealing Ion Sorption in Microporous Carbon Electrical Double Layer Capacitors journal February 2014
A comparative study of CO2, CH4 and N2 adsorption in ZIF-8, Zeolite-13X and BPL activated carbon journal February 2013
Activated carbon for gas separation and storage journal January 1996
First In Situ Lattice Strains Measurements Under Load at VULCAN journal October 2010

Cited By (2)

An asymmetric supercapacitor based on NiCo2O4 nanosheets as anode and partially reduced graphene oxides/carbon nanotubes as cathode journal August 2019
Electron regulation enabled selective lithium deposition for stable anodes of lithium-metal batteries journal January 2019

Figures / Tables (5)

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Figure 5(p. 8)figure Figure 5

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