Remarkable Electrochemical Responses of Ferrocene/NaY Zeolite Composite modified Electrode Based on Hydrophobic Ionic Liquid

Autor:	Junping Dong, Chengli Jin, Jiaqiang Xu, Hao Yan
Rok vydání:	2009
Předmět:	chemistry.chemical_compound Electron transfer chemistry Ferrocene Hexafluorophosphate Ionic liquid Inorganic chemistry Electrode Electrochemistry Ascorbic acid Reference electrode Analytical Chemistry
Zdroj:	Electroanalysis. 21:2597-2601
ISSN:	1521-4109 1040-0397
DOI:	10.1002/elan.200904668
Popis:	The ferrocene/NaY zeolite composites (Fc/NaY) are introduced on the surface of a glassy carbon electrode together with the hydrophobic ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate (BMIMPF(6)). The modified electrode thus constructed exhibits a pair of reversible redox peaks corresponding to ferrocene. Additionally the peak separation remains almost constant (58-75 mV) and the value of the ratio i(pa)/i(pc) is close to 1 for scan rates in the range from 10 to 1000 mV s(-1). The effects of the scan rate, aqueous supporting electrolytes, hydrophobic ionic liquid and the contents of ferrocene encapsulated by electrochemistry are investigated. The extrazeolite electron transfer process is discussed. Furthermore, the Fc/NaY/IL-modified electrode shows good mediation towards oxidation of ascorbic acid, dopamine, hydroquinone, and catechol.
Databáze:	OpenAIRE
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