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Electrocatalysis by crown-type polyoxometalates multi-substituted by transition metal ions; comparative study
Naseer, Rashda; Mal, Sib Sankar; Kortz, Ulrich; Armstrong, Gordon; Laffir, Fathima R.; Dickinson, Calum; Vagin, Mikhail; McCormac, Timothy
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. (C) 2015 Elsevier Ltd. All rights reserved. ACCEPTED peer-reviewed
Keyword(s): polyoxometalate; electrocatalysis; layer-by-layer; transition metal ion-substituted crown-type polyoxometalate; nitrite reduction
Publication Date:
Type: Journal article
Peer-Reviewed: Yes
Language(s): English
Institution: University of Limerick
Citation(s): Electrochimica Aca;176, pp. 1248-1255
Publisher(s): Elsevier
First Indexed: 2017-10-14 07:21:15 Last Updated: 2017-11-24 06:35:34