Original title: Influence of Adsorption on Electrochemical Reduction of Pyridinium Derivatives
Authors: Nováková Lachmanová, Štěpánka ; Dupeyre, G. ; Lainé, P. P. ; Hromadová, Magdaléna
Document type: Papers
Conference/Event: Moderní elektrochemické metody /38./, Jetřichovice (CZ), 20180521
Year: 2018
Language: eng
Abstract: Two expanded pyridinium-based compounds 1 and 2 were studied by cyclic voltammetry in two different environments. The nonaqueous solution suppresses the adsorption of the compounds on the electrode surface. Adsorption process in aqueous environment was confirmed by typical shape of the curve as well as by the linear dependence of peak current on the scan rate. The shift of standard redox potential in aqueous solution compared to nonaqueous environment toward more negative potential indicates the adsorption of reactant on the electrode surface. Larger shift observed for flat conjugated molecule 1 confirms its stronger adsorption than for the second molecule.
Keywords: adsorption; cyclic voltammetry; pyridinium derivatives
Project no.: GJ16-07460Y (CEP), GA18-04682S (CEP), MTA-16-02
Funding provider: GA ČR, GA ČR, AV ČR
Host item entry: XXXVIII. Moderní elektrochemické metody. Sborník přednášek, ISBN 978-80-905221-6-9

Institution: J. Heyrovsky Institute of Physical Chemistry AS ČR (web)
Document availability information: Fulltext is available on demand via the digital repository of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0284380

Permalink: http://www.nusl.cz/ntk/nusl-375660


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Research > Institutes ASCR > J. Heyrovsky Institute of Physical Chemistry
Conference materials > Papers