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

Armstrong_2015_electrocatalysis.pdf (1004 kB)

Electrocatalysis by crown-type polyoxometalates multi-substituted by transition metal ions; comparative study

journal contribution

posted on 2017-10-12, 13:25 authored by Rashda Naseer, Sib Sankar Mal, Ulrich Kortz, GORDON ARMSTRONGGORDON ARMSTRONG, Fathima R. Laffir, Calum Dickinson, Mikhail Vagin, Timothy McCormac

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.

History

Publication

Electrochimica Aca;176, pp. 1248-1255

Publisher

Elsevier

Note

peer-reviewed

Rights

This is the author’s version of a work that was accepted for publication in Electrochimica Acta. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Electrochimica Acta, 2015, 176, pp. 1248-1255, https://doi.org/10.1016/j.electacta.2015.07.152