Anomalous Electrochemical Behavior of 1,4-Benzoquinone upon the Addition of Silver Ion

Autor:	Hiroto Miyake, Yusuke Ohki, Kikujiro Ujimoto, Hirondo Kurihara, Isao Ando
Rok vydání:	2000
Předmět:	1 4-Benzoquinone chemistry.chemical_compound Aqueous solution chemistry Inorganic chemistry Electrode Negative potential Silver ion General Chemistry Underpotential deposition Electrochemistry Redox
Zdroj:	Bulletin of the Chemical Society of Japan. 73:2753-2757
ISSN:	1348-0634 0009-2673
Popis:	A cyclic voltammogram of 1,4-benzoquinone showed a couple of redox waves in aqueous solution. Upon adding a trace amount of silver ion, the cyclic voltammogram exhibited an anomalous behavior: a shift of the reduction peak toward a negative potential and the appearance of a new re-oxidation peak at a much more positive potential. This anomalous electrochemical behavior was investigated in terms of both interactions in bulk and on the electrode surface using some kinds of metal-ion additives and some working-electrode materials. It is suggested that the underpotential deposition of silver ion is primarily responsible for the anomalous electrochemical behavior of 1,4-benzoquinone. This was demonstrated by a measurement of cyclic voltammograms using a silver-deposited electrode at an underpotential.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b73d946cba17bfe205d6370b2dc61702 https://doi.org/10.1246/bcsj.73.2753 Zobrazit plný text záznamu