The catalytic oxidation of aqueous phenol by H2O2 using a macrocyclic (N-donor) cobalt(II) complex

A new macrocyclic (N-donor) cobalt(II) complex, denoted CoR, was synthesized and characterized, and used as a mimetic peroxidase in the catalytic oxidation of phenol by H2O2. The catalytic system displayed high catalytic activity and the catalytic character of a metalloenzyme, although it did not at...

Full description

Saved in:
Bibliographic Details
Published inProgress in reaction kinetics and mechanism Vol. 36; no. 4; pp. 342 - 351
Main Authors Feng, Fa-mei, Liu, Fu-an, Cai, Shu-lan, Xie, Jia-qing
Format Journal Article
LanguageEnglish
Published London Sage Publications Ltd 01.01.2011
Subjects
Catalysis
Catalysts
Hydroquinone
Macrocyclic compounds
Oxalic acid
Oxidation
Peroxidase
Phenol
Reaction kinetics
Online AccessGet full text

Cover

More Information
Summary:A new macrocyclic (N-donor) cobalt(II) complex, denoted CoR, was synthesized and characterized, and used as a mimetic peroxidase in the catalytic oxidation of phenol by H2O2. The catalytic system displayed high catalytic activity and the catalytic character of a metalloenzyme, although it did not attain the catalytic efficiency of enzymes. The final products were maleic and oxalic acids. Intermediate products, such as catechol and hydroquinone and p-benzoquinone, were detected by high-pressure liquid chromatography (HPLC) and UV-Vis spectrophotometry. The effects of temperature and the pH of the system on the rate of the catalytic oxidation were investigated. A reaction mechanism and kinetic model for the catalytic oxidation are proposed, which are supported by the results of the experimental and calculation data.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1468-6783
1471-406X
DOI:10.3184/146867811X13103063934140