Interfacial catalysts, coated electrodes

A pol3nner-Cu complex coated electrode was successfully applied as the interfacial catalyst for the oxidative polymerization of phenol. 

These results suggest some factors for the preparation of electrodes with electron-transfer ability, (i) There is an optimum thickness of the coated polymer film for the electron-transfer reaction, (ii) The polymer matrix should be flexible. Otherwise, the matrix retards the diffusion of a counter ion and suppresses the effective collision between redox sites. (iii) A hydrophilic but uncharged polymer domain is suitable for the mass-transfer process in catalysis. A series of polymer complex coated electrodes were prepared as interfacial catalysts (16), one example is given below. 

Shigehara K, Anson FC (1982) Catalysis of the reductirai of dioxygen to water at graphite electrodes coated with two transition metal catalysts acting in series. J Electroanal Chem Interfacial Electrochem 132 107-118... 

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