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DIGBY D. MACDONALD
Transient Techniques in Electrochemistry nize the topics into readable text. The result is a welcome addition to the electrochemical literature, one that appears suitable for both an advanced course and for use as a reference. The theory of transient methods is logically presented in four chapters according to the controlled experimental variable: potential step, current step, potential sweep, and ac impedance. Hydrodynamic methods are not included. In each chapter the presentation is reasonably uniform in that the response function is first developed for diffusion-controlled processes, then for charge transfer control, and finally mixed control. Coupled chemical reactions are then introduced for each technique. Equations are derived in detail for most cases, occasionally in a manner that is easier to follow than in the original literature. Only for a few, highly involved derivations is the reader referred to the original sources for details. Adsorption phenomena are included for several methods, and metal-alloy dissolution appears as a special topic in the chapter on potential step method. In the final chapter, a variety of surface processes—adsorption, electrocrystallization, passivation, and film growth—are described in terms of the same four techniques. Here, the treatment varies according to current developments and applications. All of this material follows an introduction to the mathematics of diffusion which includes mainly Laplace transform methods since nearly all equations are subsequently derived by this technique. The reader is made aware, however, of numerical methods, digital simulation, and analog methods. The level of presentation of
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ANALYTICAL CHEMISTRY, VOL. 50, NO. 1 1 , SEPTEMBER 1978 · 1003 A
