Transcription of Practical Problems in Voltammetry: 4. Preparation …
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Practical Problems in Voltammetry: 4. Preparation …
The fundamental process in electro-chemical reactions is the transfer ofelectrons between the electrode sur-face and molecules in the inter-facial region (either in solution orimmobilized at the electrode sur-face). The kinetics of this heteroge-neous process can be significantlyaffected by the microstructure androughness of the electrode surface,the blocking of active sites on theelectrode surface by adsorbed mate-rials, and the nature of the func-tional groups ( , oxides) presenton the surface (1, 2). Therefore,there has been considerable effortdevoted to finding methods that re-move adsorbed species from theelectrode and produce an electrodesurface that generates reproducibleresults. Some of these methodshave also resulted in the activationof the electrode surface (as judgedby an increase in the rate of elec-tron transfer).
The fundamental process in electro-chemical reactions is the transfer of electrons between the electrode sur-face and molecules in the inter-facial region (either in solution or
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