Abstract
The specific features of electrochemical reduction of thionyl chloride were studied on a smooth glassy carbon electrode in the presence of tetraphenylporphyrins (TPP) or tetra( p-methoxyphenyl)porphyrins (TMPP) of copper, manganese, iron, nickel, cobalt and also of metal-free TPP and TMPP. In the presence of metal-free porphyrin and its metallo complexes the potential of the maximum on voltammograms shifts markedly in the positive direction. Introduction into the solution of FeTPP, CoTPP and NiTPP leads to an increase of the maximum current on cyclic voltammograms. The amount of electricity necessary for electrode passivation also changes thereby. This indicates that the role of porphyrins in the SOCl 2 electroreduction is due both to electrocatalytic action and to changing the electrode passivation conditions. With the use of a combination of spectroscopic methods (electron absorption and ESR spectra) it has been found that thionyl chloride interacts chemically with the porphyrins. These chemical interaction products act as catalysts of SOCl 2 electroreduction.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
