Počet záznamů: 1

Properties of thiolate monolayers formed on different amalgam electrodes

  1. 1.
    0358449 - UFCH-W 2012 RIV CH eng J - Článek v odborném periodiku
    Josypčuk, Bohdan - Mareček, Vladimír
    Properties of thiolate monolayers formed on different amalgam electrodes.
    Journal of Electroanalytical Chemistry. Roč. 653, 1-2 (2011), s. 7-13 ISSN 1572-6657
    Grant CEP: GA AV ČR IAA400400806; GA ČR GAP206/11/1638; GA MŠk(CZ) LC06063
    Výzkumný záměr: CEZ:AV0Z40400503
    Klíčová slova: thiolate monolayer * reductive desorption * charge effect
    Kód oboru RIV: CG - Elektrochemie
    Impakt faktor: 2.905, rok: 2011

    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).
    Trvalý link: http://hdl.handle.net/11104/0196491