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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

Abstract

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.

Authors:
 [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)
Publication Date:
Research Org.:
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 Org.:
USDOE
OSTI Identifier:
1436046
Alternate Identifier(s):
OSTI ID: 1548453
Grant/Contract Number:  
AC05-00OR22725; SC0001057
Resource Type:
Accepted Manuscript
Journal Name:
Carbon
Additional Journal Information:
Journal Volume: 136; Journal Issue: C; Journal ID: ISSN 0008-6223
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Liu, Yiqun, Li, Chen, Liu, Cong, Chen, Yan, An, Ke, and Landskron, Kai. Probing the electrolyte infiltration behaviour of activated carbon supercapacitor electrodes by in situ neutron scattering using aqueous NaCl as electrolyte. United States: N. p., 2018. Web. doi:10.1016/j.carbon.2018.04.072.
Liu, Yiqun, Li, Chen, Liu, Cong, Chen, Yan, An, Ke, & Landskron, Kai. Probing the electrolyte infiltration behaviour of activated carbon supercapacitor electrodes by in situ neutron scattering using aqueous NaCl as electrolyte. United States. doi:10.1016/j.carbon.2018.04.072.
Liu, Yiqun, Li, Chen, Liu, Cong, Chen, Yan, An, Ke, and Landskron, Kai. Tue . "Probing the electrolyte infiltration behaviour of activated carbon supercapacitor electrodes by in situ neutron scattering using aqueous NaCl as electrolyte". United States. doi:10.1016/j.carbon.2018.04.072. https://www.osti.gov/servlets/purl/1436046.
@article{osti_1436046,
title = {Probing the electrolyte infiltration behaviour of activated carbon supercapacitor electrodes by in situ neutron scattering using aqueous NaCl as electrolyte},
author = {Liu, Yiqun and Li, Chen and Liu, Cong and Chen, Yan and An, Ke and Landskron, Kai},
abstractNote = {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.},
doi = {10.1016/j.carbon.2018.04.072},
journal = {Carbon},
number = C,
volume = 136,
place = {United States},
year = {2018},
month = {4}
}

Journal Article:
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Cited by: 5 works
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Figures / Tables:

Figure 1 Figure 1: Diffraction patterns from the in-situ infiltration measurements. (Top): Intensity color map (Bottom): The integrated spectra at early and late stages of infiltration.

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Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.