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Non-Steady-State Rotating Disk Voltammetry of Redox Couples Incorporated in Perfluorsulfonated Ionomer Coatings on Electrodes

Shi, Minglian and Anson, Fred C. (1997) Non-Steady-State Rotating Disk Voltammetry of Redox Couples Incorporated in Perfluorsulfonated Ionomer Coatings on Electrodes. Analytical Chemistry, 69 (14). pp. 2661-2668. ISSN 0003-2700. https://resolver.caltech.edu/CaltechAUTHORS:20170905-092129135

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Abstract

The differences in the affinity of Nafion coatings for Ru(NH_3)_6^(3+/2+) and Os(bpy)_3^(3+/2+) counterions and the difference in the mobilities of the two types of cations within Nafion are used to explain the differences in the voltammetric signatures that they exhibit. A new method is proposed with which to determine whether apparent diffusion coefficients of electroactive counterions in electrode coatings differ when they are evaluated in transient or in steady-state experiments. The utility of non-steady-state cyclic voltammetry with Nafion-coated rotating disk electrodes to separate the contribution to the observed current from dissolved and Nafion-confined reactants is demonstrated.


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https://doi.org/10.1021/ac9701389DOIArticle
http://pubs.acs.org/doi/abs/10.1021/ac9701389PublisherArticle
Additional Information:© 1997 American Chemical Society. Received for review February 5, 1997. Accepted April 30, 1997. Publication Date (Web): July 15, 1997. This work was supported by the National Science Foundation. Dr. Iqbal Bhugun was a consistent source of insightful comments and helpful suggestions.
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Issue or Number:14
Record Number:CaltechAUTHORS:20170905-092129135
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20170905-092129135
Official Citation:Non-Steady-State Rotating Disk Voltammetry of Redox Couples Incorporated in Perfluorsulfonated Ionomer Coatings on Electrodes. Minglian Shi and Fred C. Anson Analytical Chemistry 1997 69 (14), 2661-2668 DOI: 10.1021/ac9701389
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:81127
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:05 Sep 2017 19:34
Last Modified:03 Oct 2019 18:39

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