EIS at carbon fiber cylindrical microelectrodes

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Landon-Lane_ElectrochemComm_2019.pdf (882.48 KB)

Date

2019

Authors

Landon-Lane, Leatham
Marshall, Aaron T.
Harrington, David A.

Journal Title

Journal ISSN

Volume Title

Publisher

Electrochemistry Communications

Abstract

The theoretical mass-transport impedance at cylindrical microelectrodes has been known for some time, but an experimental verification is given here for the first time, using carbon fiber electrodes taken from a commercial carbon felt. Nonlinear least-squares fitting of the impedance spectrum of a redox couple at the reversible potential enables accurate evaluation of a composite parameter containing the standard rate constant and mean diffusivity, without measuring the fiber diameter, length or area.

Description

Keywords

Mass transport impedance, Cylindrical diffusion, Carbon fiber, Microelectrode, EIS

Citation

Landon-Lane, L., Marshall, A.T. & Harrington, D.A. (2019). EIS at carbon fiber cylindrical microelectrodes. Electrochemistry Communications, 109, 106566. https://doi.org/10.1016/j.elecom.2019.106566

URI

https://doi.org/10.1016/j.elecom.2019.106566
 http://hdl.handle.net/1828/11516

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Faculty Publications (BioMed Central & Faculty of Science)
 
University of Victoria Libraries

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