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Title: Potential limits of capacitive deionization and membrane capacitive deionization for water electrolysis

Abstract

Water electrolysis can delay the operation of capacitive deionization (CDI) and membrane CDI (MCDI). Here, we investigate the overpotential limits of CDI and MCDI (OP-MCDI) for water electrolysis and desalination performance. For sodium chloride concentrations of ~28,460 ppm, MCDI with mesoporous carbon electrodes could be operated at up to 2.4 V without water electrolysis, and the salt-adsorption capacity of the OP-MCDI system at 2.4 V was about two times greater than that of the MCDI at 1.2 V. This study offers an opportunity to extend the applicability of conventional CDI and MCDI systems for desalination of low-salinity solutions.

Authors:
 [1]; ORCiD logo [2];  [3];  [4];  [5];  [6];  [6];  [6]; ORCiD logo [7]
  1. Georgia Inst. of Technology, Atlanta, GA (United States); Louisiana State Univ., Baton Rouge, LA (United States)
  2. Georgia Inst. of Technology, Atlanta, GA (United States); Tianjin Polytechnic Univ., (China); Chinese Academy of Sciences (CAS), Beijing (China)
  3. Chinese Academy of Sciences (CAS), Beijing (China)
  4. Indian Institute of Technology Gandhinagar, Gujarat (India)
  5. Georgia Inst. of Technology, Atlanta, GA (United States)
  6. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  7. Georgia Inst. of Technology, Atlanta, GA (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1531237
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Separation Science and Technology
Additional Journal Information:
Journal Volume: 54; Journal Issue: 13; Journal ID: ISSN 0149-6395
Publisher:
Taylor & Francis
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Electrosorption; Capacitive deionization; Membrane capacitive deionization; Desalination; Overpotential membrane capacitive deionization

Citation Formats

Kim, Yong Ha, Tang, K., Chang, J., Sharma, K., Yiacoumi, S., Mayes, R. T., Bilheux, H. Z., Santodonato, L. J., and Tsouris, C. Potential limits of capacitive deionization and membrane capacitive deionization for water electrolysis. United States: N. p., 2019. Web. doi:10.1080/01496395.2019.1608243.
Kim, Yong Ha, Tang, K., Chang, J., Sharma, K., Yiacoumi, S., Mayes, R. T., Bilheux, H. Z., Santodonato, L. J., & Tsouris, C. Potential limits of capacitive deionization and membrane capacitive deionization for water electrolysis. United States. doi:10.1080/01496395.2019.1608243.
Kim, Yong Ha, Tang, K., Chang, J., Sharma, K., Yiacoumi, S., Mayes, R. T., Bilheux, H. Z., Santodonato, L. J., and Tsouris, C. Wed . "Potential limits of capacitive deionization and membrane capacitive deionization for water electrolysis". United States. doi:10.1080/01496395.2019.1608243.
@article{osti_1531237,
title = {Potential limits of capacitive deionization and membrane capacitive deionization for water electrolysis},
author = {Kim, Yong Ha and Tang, K. and Chang, J. and Sharma, K. and Yiacoumi, S. and Mayes, R. T. and Bilheux, H. Z. and Santodonato, L. J. and Tsouris, C.},
abstractNote = {Water electrolysis can delay the operation of capacitive deionization (CDI) and membrane CDI (MCDI). Here, we investigate the overpotential limits of CDI and MCDI (OP-MCDI) for water electrolysis and desalination performance. For sodium chloride concentrations of ~28,460 ppm, MCDI with mesoporous carbon electrodes could be operated at up to 2.4 V without water electrolysis, and the salt-adsorption capacity of the OP-MCDI system at 2.4 V was about two times greater than that of the MCDI at 1.2 V. This study offers an opportunity to extend the applicability of conventional CDI and MCDI systems for desalination of low-salinity solutions.},
doi = {10.1080/01496395.2019.1608243},
journal = {Separation Science and Technology},
number = 13,
volume = 54,
place = {United States},
year = {2019},
month = {5}
}

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Works referenced in this record:

Capacitive deionization characteristics of nanostructured carbon aerogel electrodes synthesized via ambient drying
journal, October 2007