Preliminary-Study of Surface Treatments for Platinum-Electrodes Designed for Oxidation-Reduction Potential Determinations in Activated-Sludge - Heduit, A.; Martin, B.; Thevenot, D.R. (Water Science and Technology, 1994)
Platinum electrodes with six different surface treatments (polishing, platinization, polypyrrole, polyurethane, cellulose acetate and Nafion) were tested for equilibrium exchange current densities and zero-current potential in treated water and activated sludge. Preliminary results show that platinization and polypyrrole treatment increase electron transfer rates, but polypyrrole film breaks up rapidly in activated sludge; polyurethane and cellulose acetate layers did not prevent fouling (and impaired performance) in activated sludge, buy Nafion seemed more promising.
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