Electrocatalysis of chloroacetic acids (mono-, di- and tri-) at a C60-[dimethyl-(β-cyclodextrin)]2 and nafion chemically modified electrode

Autor: Zhennan Gu, Min Wei, Nanqiang Li, Xihuang Zhou, Meixian Li
Rok vydání: 2001
Předmět:
Zdroj: Talanta. 53:1045-1052
ISSN: 0039-9140
DOI: 10.1016/s0039-9140(00)00600-7
Popis: The C(60)-[dimethyl-(beta-cyclodextrin)](2) and nafion chemically modified electrode (CME) exhibits one electroreduction peak and two electro-oxidation peaks in a mixed solvent of water and acetonitrile (3:2, v/v) containing tetra-butylammonium perchlorate. The reduction of chloroacetic acids (mono-, di- and tri-) can be electrocatalyzed at this electrode, indicating that C(60)-[dimethyl-(beta-cyclodextrin)](2) is capable of mediating the electron transfer to chloroacetic acids. Values of the apparent catalytic rate constant, k, were determined by using the rotating-disk electrode (RDE).
Databáze: OpenAIRE