Charge Regulation in Redox Active Monolayers Em-bedded in Proton Exchanger surface

CALVO EJ,; ALEJANDRA M. RICCI; MARIO TAGLIAZUCCHI

Praga

Congreso; 63ava. Reunion de la Sociedad Internacional de Electroquimica; 2012

International Society of Electrochemistry

Experimental evidence of the variation in redox potential of osmium pyridine complexes tethered to a Au surface by thiol or diazonium chemistry at different ionic concentration and electrolyte pH is described. The interplay between the charged redox and acid groups is described by a charge regulation model based on PM-IRRAS spectroscopic evidence on the different degrees of surface protonation.