Electrocatalysis of oxidation of 2-mercaptoethanol, l-cysteine and reduced glutathione by adsorbed and electrodeposited cobalt tetra phenoxypyrrole and tetra ethoxythiophene substituted phthalocyanines

Sehlotho, N. and Nyokong, T. and Zagal, J.H. and Bedioui, F. (2006) Electrocatalysis of oxidation of 2-mercaptoethanol, l-cysteine and reduced glutathione by adsorbed and electrodeposited cobalt tetra phenoxypyrrole and tetra ethoxythiophene substituted phthalocyanines. Electrochimica Acta, 51 (24). pp. 5125-5130. ISSN 0013-4686

[img]
Preview
Text
Nyokong_Electrocatalysis.pdf

408Kb

Official URL: http://dx.doi.org/10.1016/j.electacta.2006.03.049

Abstract

Catalytic activity of cobalt tetra ethoxythiophene and cobalt tetra phenoxypyrrole phthalocyanine complexes towards oxidation of 2-mercaptoethanol, L-cysteine and reduced glutathione is reported. It was found that the activity of the complexes depends on the substitution of the phthalocyanine ring, pH, film thickness and method of electrode modification. The high electrocatalytic activity obtained with adsorbed complexes in alkaline medium clearly demonstrates the necessity of modifying bare carbon electrodes to endow them with the desired behaviour.

Item Type:Article
Uncontrolled Keywords:Metallophthalocyanine; Electrocatalysis; 2-Mercaptoethanol; l-Cysteine; Reduced glutathione; Bare carbon electrode; Modified electrode
Subjects:Y Unknown > Subjects to be assigned
Divisions:Faculty > Faculty of Science > Chemistry
ID Code:448
Deposited By: Mrs Eileen Shepherd
Deposited On:31 Oct 2006
Last Modified:06 Jan 2012 16:18
643 full-text download(s) since 31 Oct 2006
121 full-text download(s) in the past 12 months
More statistics...

Repository Staff Only: item control page