Aspects of electrochemistry of phthalocyanine derivatives and their applications.

摘要

The electrochemical behaviour of several phthalocyanine derivatives (Pcs) in solution and deposited on electrode surfaces have been studied. The applications of these Pc-modified electrodes in electrocatalysis and Ion Selective Electrode, ISE, technology have also been investigated.;The reduction of the chloro(phthalocyaninato)rhodium (III) species to the rhodium (II) species, in solution and adsorbed on the highly-oriented pyroltic graphite (HOPG) surface, leads to the formation of a dimeric rhodium(II) species which can be reversibly oxidized to a (Rh(III)Pc) ;Electroreduction of cobalt (II) N,N,;The surface electrochemistry of cobalt (II) tetraamino-phthalocyanine polymer on a graphite electrode has been studied in aqueous buffer conditions. This polymer-modified electrode surface shows activity for 2-electron and 4-electron dioxygen reduction at different redox potentials. The possibility of using this polymer-modified electrode as an ion-selective electrode for sulfide ion and sulfur-containing compounds has also been investigated in pH 7, 10 and 13.