Mathematical modeling of an anion-exchange membrane water electrolyzer for hydrogen production

Liang An, T. S. Zhao, Z. H. Chai, P. Tan, L. Zeng

Research output: Journal article publicationJournal articleAcademic researchpeer-review

38 Citations (Scopus)

Abstract

A mathematical model that considers coupled mass transport, charge transport, and electrochemical reactions in an anion-exchange membrane (AEM) water electrolyzer is developed. Validations against the literature experimental data show that the present model can accurately predict the performance of the water electrolyzer. Numerical results show that the voltage loss in the electrolyzer is majorly due to the activation polarizations of hydrogen and oxygen evolution reactions. The effects of the exchange current density, the membrane thickness, and the liquid saturation on the performance are also studied; it is shown that the performance of the water electrolyzer improves with an increase in the exchange current density and liquid saturation, but with a decrease in the membrane thickness.
Original languageEnglish
Pages (from-to)19869-19876
Number of pages8
JournalInternational Journal of Hydrogen Energy
Volume39
Issue number35
DOIs
Publication statusPublished - 1 Jan 2014
Externally publishedYes

Keywords

  • Activation polarization
  • Anion-exchange membrane water electrolyzer
  • Hydrogen production
  • Mass/charge transport
  • Mathematical modeling
  • Water electrolysis

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

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