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Elimination Voltammetry of Miniaturized Mercury Drop Electrodes |
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| Authors: | Libuse Trnkova Ladislav Novotny Nuria Serrano Katerina Klosova Petra Polaskova |
| Affiliation: | 1. Department of Chemistry, Faculty of Science, Masaryk University, Kotlarska 2, 611?37 Brno, Czech Republic;2. Institute of Environmental and Chemical Engineering, Faculty of Chemical Technology, University of Pardubice, Studentska 573, 532 10 Pardubice, Czech Republic;3. Departament de Química Analítica, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1‐11, E‐08028 – Barcelona, Spain;4. Department of Analytical Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentska 573, 532?10 Pardubice, Czech Republic |
| Abstract: | Elimination voltammetry with linear scan (EVLS) in connection with renewed mini‐ drop mercury electrodes provides valuable information about the character and kinetics of processes at electrode/electrolyte interfaces. Based on the experiment related to the hydrogen evolution, it is presented that the EVLS is more sensitive than other voltammetric methods. Using miniaturized mercury electrodes, the EVLS is capable of detecting the effect of spherical diffusion associated with both the scan rates and the size of an electrode drop. |
| Keywords: | Elimination voltammetry with linear scan (EVLS) Linear sweep voltammetry (LSV) Mini‐drop electrodes Cottrell equation Spherical diffusion Voltammetry Hydrogen evolution |