Non-destructive characterization of CoTSPc electrochemically deposited on gold electrodes by means of synchrotron X-ray microfluorescence

Abstract

This paper gives a detailed study of the morphology and heterogeneity of an electrodeposited cobalt tetrasulphophthalocyanine tetrasodium salt (Co(II)TSPc) layer. A continuous potential cycling of the electrode between two potentials can lead to a modification of a bare electrode. During the modification, a non-destructive characterization by means of scanning synchrotron X-ray fluorescence radiation has been made as a function of scan number. Moreover, electrochemical and SR-XRF measurements were performed in order to calculate the adsorbed Co surface concentration and to distinguish between monomer and dimer adsorption.