Chemistry Reference
In-Depth Information
5.4.4 Polymer-Modified (Coated)
Electrodes
Polymer-modified (coated) electrodes have an
advantage that a large number of functional
substances, such as optically active compounds
and electroactive compounds like redox
catalysts, can be incorporated in the polymer
matrix coated on the electrode surface, as
shown in Figure 5.10 [45].
Figure 5.10 Polymer-modified electrode with
redox catalyst
The polymer used for coating must be soluble in
some solvent and insoluble in the solvent
containing the supporting electrolyte used for
electroanalytical studies and/or electrolytic
reactions. Modification methods are shown
below: simple dip coating and subsequent
drying, polymer coating directly from
monomers by chemical or electrochemical
initiated polymerization, conducting polymer
coating and a confirmed chemical binding like
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