Author/Authors :
YE, Lina Jilin Normal University - Computer College, China , YE, Lina Jiangsu University - School of Chemistry and Chemical Engineering, China , OU, Zhongping Jiangsu University - School of Chemistry and Chemical Engineering, China , MENG, Deying Jiangsu University - School of Chemistry and Chemical Engineering, China , YUAN, Mingzhu Jiangsu University - School of Chemistry and Chemical Engineering, China , FANG, Yuanyuan University of Houston - Department of Chemistry, USA , KADISH, Karl M. University of Houston - Department of Chemistry, USA
Abstract :
Two meso-dichlorophenyl substituted metallocorroles were synthesized and characterized as to their electrochemical and spectroelectrochemical properties in dichloromethane, benzonitrile, and pyridine containing 0.1 M tetra- n -butylammonium perchlorate (TBAP) as supporting electrolyte. The examined compounds are represented as (Cl2Ph)3 CorFe^IVCl and (Cl2Ph)3 CorMn^IVCl where (Cl2Ph)3 Cor is the trianion of 5,10,15-tri(2,4-dichlorophenyl)cor- role. Each metallocorrole was examined as to its catalytic activity for the electoreduction of dioxygen when coated on an edge-plane pyrolytic graphite electrode in 1.0 M HClO4. Cyclic voltammetry combined with linear sweep voltammetry at a rotating disk electrode (RDE) and a rotating ring disk electrode (RRDE) was utilized to evaluate the catalytic activity for the electroreduction of O2. The main O2 reduction product is hydrogen peroxide under the given experimental conditions.
Keywords :
Metallocorroles , synthesis , electrochemistry , catalytic activity , dioxygen reduction
