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1. Electrochemistry of Fe(IV) and Mn(IV) corroles containing meso-dichlorophenyl substituents and the use of these compounds as catalysts for the electroreduction of dioxygen in acid media

Author

Lina Ye, Karl M. Kadish, Mingzhu Yuan, Deying Meng, Zhongping Ou, and Yuanyuan Fang

Subjects
Benzonitrile, chemistry.chemical_compound, Perchlorate, chemistry, Rotating ring-disk electrode, Supporting electrolyte, Inorganic chemistry, Linear sweep voltammetry, Metallocorroles,synthesis,electrochemistry,catalytic activity,dioxygen reduction, General Chemistry, Rotating disk electrode, Cyclic voltammetry, Electrochemistry
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)3CorFeIVCl and (Cl2Ph)3CorMnIVCl where (Cl2Ph)3Cor is the trianion of 5,10,15-tri(2,4-dichlorophenyl)corrole. 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.

Published
2015

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