Voltammetric Studies of Cobalt Hexacyanoferrate Formed on the Titanium (IV) Phosphate Surface and its Application to the Determination of Sulfite

摘要

Titanium (IV) Phosphate (TiPh) composite was prepared using a easily methodology of the synthesis.As a second step, TiPh was reacted with Cobalte (TiPhCo) and subsequent hexacyanoferrate wasadded (TiPhCoHCF). A preliminary characterization of the precursor and resulting materials wascarried out using spectroscopic and voltammetric techniques. The electrochemical behaviour of thecomposite (TiPhCoHCF) was verified by means of a graphite paste electrode using cyclic voltammetryin a potential range of -0.2 to 1.0 V (vs Ag/AgCl). The cyclic voltammogram of the modifiedelectrode containing TiPhCoHCF exhibited two redox couples.