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Properties of thiolate monolayers formed on different amalgam electrodes

SYSNO ASEP	0358449
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Properties of thiolate monolayers formed on different amalgam electrodes
Author(s)	Josypčuk, Bohdan (UFCH-W)_{RID, SAI, ORCID} Mareček, Vladimír (UFCH-W)_RID
Source Title	Journal of Electroanalytical Chemistry. - : Elsevier - ISSN 1572-6657 Roč. 653, 1-2 (2011), s. 7-13
Number of pages	7 s.
Language	eng - English
Country	CH - Switzerland
Keywords	thiolate monolayer ; reductive desorption ; charge effect
Subject RIV	CG - Electrochemistry
R&D Projects	IAA400400806 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
	GAP206/11/1638 GA ČR - Czech Science Foundation (CSF)
	LC06063 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
CEZ	AV0Z40400503 - UFCH-W (2005-2011)
UT WOS	000288722600002
DOI	10.1016/j.jelechem.2011.01.017
Annotation	Formation and properties of thiol (HS(CH2)10COOH or HS(CH2)10CH3) monolayers were investigated at stationary electrodes based on silver, copper, bismuth and cadmium solid amalgams covered by a mercury meniscus or by a mercury film (m-AgSAE, MF-AgSAE, m-CuSAE, m-BiAgSAE and m-CdSAE). For comparison, parallel experiments were performed at a classical hanging mercury drop electrode (HMDE). Thiol monolayers were prepared at an optimal deposition potential (e.g., for HS(CH2)10COOH Eac = −350 mV for HMDE and silver amalgam electrodes, Eac = −750 to −800 mV for m-CuSAE and m-BiAgSAE, and Eac = −1050 mV for m-CdSAE) at which the formed layers exhibit high density and stability. It was found that the potential of a reductive desorption peak of a thiol monolayer strongly depends on the metal which forms the amalgam (for HS(CH2)10COOH: Ep = −864 to −859 mV for HMDE and silver amalgam electrodes, Em-BiAgSAE = −1079 mV, Em-CuSAE = −1136 mV and Em-CdSAE = −1248 mV).
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