Electrochemical Studies of Poly(mercaptohydroquinone) and Poly(mercapto-p-benzoquinone) Films Prepared by Electrochemical Polymerization. VI. Electroreduction of L-Cystine on Thiolates Fixed in the Polymer Film

Article abstract of DOI:10.1246/bcsj.65.594

Electrocatalytic reduction of L-cystine (CySSCy) was examined on glassy carbon electrodes coated with the title conductive polymer in which Pt, Pd, Cu, Ag, and Hg thiolates were fixed.Pt and/or Pd thiolate fixed in the polymer behaved as excellent electrocatalytic active sites for reductive cleavage of the sulfur-sulfur bond in CySSCy.