Electrocatalysis by crown-type polyoxometalates multi-substituted by transition metal ions; Comparative study
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Date
2015
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier Ltd
Abstract
Abstract The difference in electrochemical properties of three crown-type polyoxometalates multi-substituted by Fe3+, Ni2+ or Co2+ ions and their precursor has been rationalized with respect to their electrocatalytic performances studied in solution and in the immobilized state within the layer-by-layer film formed with a positively charged pentaerythritol-based Ru(II)-metallodendrimer. The film assembly was monitored with electrochemical methods and characterized by surface analysis techniques. An influence of the terminal layer on the electrode reaction and on film porosity has been observed. The electrocatalytic performance of the compounds on nitrite reduction was assessed in solution and in the immobilized state. © 2015 Elsevier Ltd.
Description
Keywords
Catalysis, Cobalt, Electrocatalysis, Metal ions, Metals, Oxides, Reduction, Ruthenium, Ruthenium alloys, Surface analysis, Transition metals, Comparative studies, Electrocatalytic performance, ELectrochemical methods, Layer by layer, Layer-by-layer films, Nitrite reduction, Polyoxometalates, Surface analysis techniques, Transition metal compounds
Citation
Electrochimica Acta, 2015, 176, , pp. 1248-1255