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© 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.

Abstract

Mono-substituted vanadium-containing Dawson-type polyoxometalates having the general formula α1-[VIVW17X2O62]8− and α2-[VIVW17X2O62]8−, with X = As or P, were synthesised and subject to a comprehensive electrochemical study comprising the pH dependency. These POMs exhibit an electrocatalytic behaviour towards the oxidation of thiols (namely cysteine), rendering them interesting species for mimicking oxidative stress situations, at physiological pH values. The efficiency of the electro-oxidation was assessed with thiols of different nature, and the substrate that responded best was used to compare the electrocatalytic capabilities of the POM series. The magnetic behaviour of these POMs was also evaluated and compared to their analogues, α1- and α2-[VVW17X2O62]7− (X = As or P), at low temperatures and showed, as expected, a paramagnetic behaviour of VIV based compounds.

Details

Title
Electrochemical, Electrocatalytic, and Magnetic Properties of Vanadium-Containing Polyoxometalates
Author
Joseph Dika Manga 1 ; Anne-Lucie Teillout 2   VIAFID ORCID Logo  ; Rivière, Eric 3   VIAFID ORCID Logo  ; de Oliveira, Pedro 2   VIAFID ORCID Logo  ; Israël Martyr Mbomekallé 2   VIAFID ORCID Logo 

 Institut de Chimie Physique, Campus d’Orsay, Université Paris-Saclay, UMR 8000 CNRS, Bâtiment 350, 91405 Orsay, France; [email protected] (J.D.M.); [email protected] (A.-L.T.); [email protected] (P.d.O.); Laboratoire de Chimie Analytique Structurale et des Matériaux, Département de Chimie, Faculté des Sciences de l’Université de Douala, Douala BP 24157, Cameroon 
 Institut de Chimie Physique, Campus d’Orsay, Université Paris-Saclay, UMR 8000 CNRS, Bâtiment 350, 91405 Orsay, France; [email protected] (J.D.M.); [email protected] (A.-L.T.); [email protected] (P.d.O.) 
 Institut de Chimie Moléculaire et des Matériaux d’Orsay, Campus d’Orsay, Université Paris-Saclay, UMR 8182 CNRS, Bâtiment 420, 91405 Orsay, France; [email protected] 
First page
157
Publication year
2021
Publication date
2021
Publisher
MDPI AG
e-ISSN
23127481
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2612790512
Copyright
© 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.