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Spectroelectrochemical determination of the electron consumption

SYSNO ASEP	0369665
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Spectroelectrochemical determination of the electron consumption
Author(s)	Kolivoška, Viliam (UFCH-W)_{RID, ORCID} Gál, Miroslav (UFCH-W) Lachmanová, Štěpánka (UFCH-W)_RID Valášek, Michal (UOCHB-X) Hromadová, Magdaléna (UFCH-W)_{RID, ORCID, SAI} Pospíšil, Lubomír (UFCH-W)_{RID, ORCID}
Source Title	Analytica Chimica Acta. - : Elsevier - ISSN 0003-2670 Roč. 697, 1-2 (2011), s. 23-26
Number of pages	4 s.
Language	eng - English
Country	NL - Netherlands
Keywords	coulometry ; spectroelectrochemistry ; elecrolysis
Subject RIV	CG - Electrochemistry
R&D Projects	GA203/09/0705 GA ČR - Czech Science Foundation (CSF)
	IAA400400802 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
	OC 140 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
CEZ	AV0Z40400503 - UFCH-W (2005-2011)
	AV0Z40550506 - UOCHB-X (2005-2011)
UT WOS	000294372700004
DOI	10.1016/j.aca.2011.04.033
Annotation	Measurements of UV-vis spectra as a function of the consumed charge in an optically transparent thin layer cell (OTTLE) offer a fast, small-volume and reliable method for the determination of the number of electrons n exchanged in the redox reaction. The determination of n is based on the calibration procedure using the ferrocene oxidation and the methyl viologen reduction. Virtues of this method are demonstrated on the determination of n of two oligomers of 'extended viologens' with multiple redox centers and correspondingly large n. The described method eliminates problems of side reactions of reactive intermediates with the parent oxidized form, which often impede a reliable estimation of n by the established coulometric method.
Workplace	J. Heyrovsky Institute of Physical Chemistry
Contact	Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196
Year of Publishing	2012

Number of the records: 1