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Square wave electrolysis. I. The cyclic potential-step method

✍ Scribed by W. M. Smit; M. D. Wijnen

Book ID
104586124
Publisher
Elsevier Science
Year
2010
Tongue
English
Weight
672 KB
Volume
79
Category
Article
ISSN
0165-0513

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✦ Synopsis

Abstract

Drawbacks of the well‐known potential‐step method are briefly mentioned. A new method called the cyclic potential‐step method is introduced, the essential of which is that a square wave voltage is applied to a polarisable electrode. It is shown mathematically that the current response approaches rapidly to a constant pattern. The derivations presented are free from restrictions concerning the reversibility of the system and the magnitude of the amplitude of the square wave.

It is shown that the cyclic potential‐step method offers easy means for the determination of the transfer‐coefficient (α) and the standard exchange current density (j~0~^0^).

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Square wave electrolysis II: The cyclic
Square wave electrolysis II: The cyclic current-step method
✍ M. D. Wijnen; W. M. Smit 📂 Article 📅 2010 🏛 Elsevier Science 🌐 English ⚖ 738 KB

## Abstract A new method, designated the cyclic current‐step method, for the evaluation of kinetic parameters of electrochemical processes (especially the exchange current j~0~) is introduced in addition to the well‐known (single) current‐step method. Its essential basis is that a square wave curre

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## Abstract The experimental setups required for the cyclic potential‐step and cyclic current‐step methods are thoroughly discussed. Attention is paid to the following subjects: conditions for linear diffusion, reference electrode, potentiostatic conditions, time‐symmetry of the applied square wave