Cited by 49Membrane-based Ion Separation TechniquesFuel Cells and Related MaterialsMembrane Separation Technologies

Communication—Electrochemical Characterization of Commercial Bipolar Membranes under Electrolyte Conditions Relevant to Solar Fuels Technologies

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Reiter, Ronald S., White, William, Ardo, Shane·2016·Journal of The Electrochemical Society

Abstract

Water electrolysis using a catholyte and anolyte at different pH values requires a bipolar membrane to sustain the pH difference and 1.23 V to electrolyze water. Bipolar membranes that separated concentrated aqueous acid and base exhibited an open-circuit potential consistent with the Nernst equation and rapid transport of protons and hydroxide ions. When excess supporting electrolyte was added to both solutions the membrane potential was measured to be ∼0 V, which suggested that water electrolysis occurred at ≪1.23 V and therefore, protons and hydroxide ions were not the majority ionic charge carriers.

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  • Wang et al. added 11% PTFE to their Nafion-based ink and their current density and product selectivity both increased by approximately 25% due to the more porous catalyst layer structure improving gas diffusion and increasing surface area.

    “Wang et al. added 11% PTFE to their Nafion-based ink and their current density and product selectivity both increased by approximately 25% due to the more porous catalyst layer structure improving gas diffusion and increasing surface area.[184]”

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Authors
Reiter, R. S., White, W., & Ardo, S.
Affiliations
University of California, Irvine (US)
Venue
Journal of The Electrochemical Society
Published
2015-12-31
Volume
163
Issue
4
Pages
H3132-H3134
ISSN
  • 0013-4651 (ISSN-L)
  • 1945-7111
OpenAlex
W2204406952
Cited by
49
References
14
Citations by year
2026: 1 · 2025: 1 · 2024: 7 · 2023: 3 · 2022: 4 · 2021: 8 · 2020: 6 · 2019: 8 · 2018: 3 · 2017: 5 · 2016: 3
FWCI
1.82
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Journal of The Electrochemical Society (publishedVersion, cc-by)
  • eScholarship (California Digital Library) (submittedVersion, cc-by)
Funders
  • California Institute of Technology
  • Technische Universiteit Delft
  • University of California, Irvine
Topics
  • Physical Sciences › Engineering › Biomedical Engineering › Membrane-based Ion Separation Techniques
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Fuel Cells and Related Materials
  • Physical Sciences › Environmental Science › Water Science and Technology › Membrane Separation Technologies
Keywords
bipolar membranes, water electrolysis, open circuit potential, Nernst equation, proton transport, hydroxide ion transport, supporting electrolyte, pH difference, solar fuels, commercial membranes, ionic charge carriers

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