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Can one electrochemically measure the statistical morphology of a rough electrode

Kant, R (1994) Can one electrochemically measure the statistical morphology of a rough electrode. In: Journal of physical chemistry, 98 (6). pp. 1663-1667.

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Official URL: http://pubs.acs.org/doi/abs/10.1021/j100057a020

Abstract

We have developed a theory for an electrochemical way of measuring the statistical properties of a nonfractally rough electrode. We obtained the expression for the current transient on a rough electrode which shows three times regions: short and long time limits and the transition region between them. The expressions for these time ranges are exploited to extract morphological information about the surface roughness. In the short and long time regimes, we extract information regarding various morphological features like the roughness factor, average roughness, curvature, correlation length, dimensionality of roughness, and polynomial approximation for the correlation function. The formulas for the surface structure factors (the measure of surface roughness) of rough surfaces in terms of measured reversible and diffusion-limited current transients are also obtained. Finally, we explore the feasibility of making such measurements.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to American chemical society.
Department/Centre: Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited: 25 Mar 2011 06:22
Last Modified: 25 Mar 2011 06:22
URI: http://eprints.iisc.ernet.in/id/eprint/36273

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