Electrocatalytic Oxidation of Ascorbic Acid at a Reduced C60-[dimethyl-(β-cyclodextrin)]2 and Nafion Chemically Modified Electrode

Autor:	Nanqiang Li, Meixian Li, Zhennan Gu, Min Wei, Xihuang Zhou
Rok vydání:	2002
Předmět:	chemistry.chemical_compound Aqueous solution X-ray photoelectron spectroscopy Chemistry Nafion Electrode Inorganic chemistry Electrochemistry Overpotential Ascorbic acid Analytical Chemistry Chemically modified electrode
Zdroj:	Electroanalysis. 14:135-140
ISSN:	1521-4109 1040-0397
DOI:	10.1002/1521-4109(200201)14:2<135::aid-elan135>3.0.co;2-m
Popis:	A C60-[dimethyl-(β-cyclodextrin)]2 and Nafion chemically modified electrode (CME) has been prepared by solution cast on a gold electrode. The CME can be electroreduced irreversibly in KOH aqueous solution. XPS and SEM were used to characterize the CME and the reduced CME. The reduced CME shows high electrocatalytic activity toward ascorbic acid oxidation, with an overpotential ca. 350 mV less than that of the bare gold electrode. The reduced CME can also separate the electrochemical responses of ascorbic acid and dopamine.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6146439480cca1840a007b42ff074996 https://doi.org/10.1002/1521-4109(200201)14:2<135::aid-elan135>3.0.co Zobrazit plný text záznamu Plný text