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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

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:
Grant/Contract Number:
AC05-00OR22725
Type:
Accepted Manuscript
Journal Name:
Carbon
Additional Journal Information:
Journal Volume: 136; Journal Issue: C; Journal ID: ISSN 0008-6223
Publisher:
Elsevier
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
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
OSTI Identifier:
1436046

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., 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. 2018. "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.
@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}
}