Simultaneous Spatial and Temporal Measurements of the Current Distribution in a Miniature Hull Cell
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J. Electrochem. Soc.-2016-Chmielowiec-E142-6.pdf
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662.09 KB
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8db5dd6db117275e8bb1009cd12f85ed
Author(s)
Allanore, Antoine
Chmielowiec, Brian John
Cai, Truong H.
Date Issued
February 2016
Journal
Journal of The Electrochemical Society
Publisher
Electrochemical Society
Citation
Chmielowiec, Brian, Truong Cai, and Antoine Allanore. “Simultaneous Spatial and Temporal Measurements of the Current Distribution in a Miniature Hull Cell.” J. Electrochem. Soc. 163, no. 5 (2016): E142–E146.
Version
Final published version
Abstract
Experimental validation of the current distribution for actual cell geometries is an important complement to modeling. In this work, the combination of a segmented electrode in a miniaturized Hull Cell with a synchronous monitoring of the current response in each segment is proposed as a novel experimental set-up. The high frequency monitoring of the current response to potential steps is investigated as a mean to access the temporal and spatial evolution of current distribution. The corresponding primary current distribution was measured using a ferricyanide/ferrocyanide alkaline electrolyte, confirming the prediction from Laplace's equation. In addition, the experimental set-up allowed the identification of the transition time from primary to tertiary current distribution regimes.
MIT Department
Massachusetts Institute of Technology. Department of Chemical Engineering
Massachusetts Institute of Technology. Department of Materials Science and Engineering
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1149/2.1001605jes
