Catalysis of poly(3,4-ethylenedioxythiophene)-Pt(hkl) electrodes towards 2,5-dimercapto-1,3,4-thiadiazole in 1-ethyl-2,3-dimethylimidazolium bis (trifluoromethylsulfonyl)imide

This work studies the redox reactions of 2,5-dimercapto-1,3,4-thiadiazole (DMcT) on bare platinum single crystal electrodes and platinum electrodes modified by a thin film of poly(3,4-ethylenedioxythiophene) (PEDOT) using as electrolyte the ionic liquid 1-ethyl-2,3-dimethylimidazolium bis (trifluoromethylsulfonyl) imide ([Emmim][NTf2]). It was found that the redox reactions of DMcT are more reversible in [Emmim][NTf2] than in electrolytes dissolved in acetonitrile. Finally, it was found that the redox reactions of DMcT are surface sensitive on both bare and PEDOT modified Pt single crystal electrodes. (C) 2016 Elsevier Ltd. All rights reserved.