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Cited by 75Electrocatalysts for Energy ConversionMinerals Flotation and Separation TechniquesCO2 Reduction Techniques and Catalysts

Voltage Components at Gas Evolving Electrodes

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Leistra, James A., Sides, Paul J.·1987·Journal of The Electrochemical Society
DOI 10.1149/1.2100218
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Abstract

A general statement of voltage components at gas evolving electrodes, including ohmic losses, surface overpotential, gas concentration, and ionic concentration overvoltages, is presented. Discussed and illustrated are the means for estimating the value and measurability of each component. A subcomponent of the surface overpotential, termed hyperpolarization, a result of masking of the electrode by bubbles, is quantified. In hydrogen or oxygen evolution from sulfuric acid, the largest of the bubble‐related components is the concentration overpotential, due to supersaturation of the electrolyte with dissolved gas. In carbon dioxide evolution from aluminum oxide dissolved in cryolite, ohmic effects are the most important. Hyperpolarization of the electrodes is estimated to be 2, 5 and 25 mV in hydrogen, oxygen, and carbon dioxide evolution, respectively.

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Research works printed but not linked: 26

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Authors
Leistra, J. A., & Sides, P. J.
Affiliations
Carnegie Mellon University (US)
Venue
Journal of The Electrochemical Society
Publisher
The Electrochemical Society
Published
1987-10-01
Volume
134
Issue
10
Pages
2442-2446
ISSN
  • 0013-4651 (ISSN-L)
  • 1945-7111
DOI
10.1149/1.2100218
OpenAlex
W1989323220
Semantic Scholar
ae6c19f779e5fef09c81df82792626b36bcfccf0
Cited by
75
References
1
Citations by year
2026: 8 · 2025: 12 · 2024: 5 · 2023: 9 · 2022: 9 · 2021: 7 · 2020: 3 · 2019: 4 · 2018: 2
FWCI
2.44
Type
journal article
Language
en
Open access
Licence
Locations
Journal of The Electrochemical Society (publishedVersion)
Topics
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Electrocatalysts for Energy Conversion
  • Physical Sciences › Environmental Science › Water Science and Technology › Minerals Flotation and Separation Techniques
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › CO2 Reduction Techniques and Catalysts
Keywords
gas-evolving electrodes, ohmic losses, concentration overpotential, hyperpolarization, hydrogen evolution reaction, oxygen evolution reaction, carbon dioxide evolution, sulfuric acid electrolysis

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