4.8 Review

Polyoxometalates-Functionalized Electrodes for (Photo)Electrocatalytic Applications: Recent Advances and Prospects

Journal

ACS CATALYSIS
Volume -, Issue -, Pages -

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/acscatal.2c01847

Keywords

Polyoxometalates; surface modification; electrodes; photoelectrodes; electrocatalysis; electrochemistry

Funding

  1. ANR (Agence Nationale de la Recherche) [ANR-15-CE06- 0002-01]
  2. University of Rennes
  3. University of Versailles Saint Quentin
  4. CNRS

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This review provides an up-to-date and comprehensive description of recent advances in polyoxometalates (POMs)-functionalized electrodes in electrocatalytic reactions. POMs represent a fascinating class of compounds with structural and functional diversities, making them attractive electrocatalysts. Transposing homogeneous electrocatalysis to electrode-supported electrocatalysis using POMs shows great potential for the development of modern electrochemical devices.
This review is intended to provide an up-to-date and comprehensive description of recent advances since the mid-2010s in the elaboration and the involvement of polyoxometalates (POMs)-functionalized (photo)electrodes in (photo)electrocatalytic reactions. Focus has been essentially placed not only on reactions of high interest, such as hydrogen evolution reaction (HER), oxygen evolution reaction (OER), and CO2 reduction reaction (CDRR) but also on other more confidential reactions (e.g., reduction of oxyanionic species and ascorbic acid oxidation). It is now well-known that POMs represent one class of fascinating compounds largely explored in inorganic chemistry, highlighted by the large number of complexes with structural, redox, and functional diversities which make them particularly attractive as efficient electrocatalysts for a wide range of significant multiredox reactions. The transposition of homogeneous electrocatalysis to (photo)electrode-supported electrocatalysis using POMs and its derivatives undoubtedly constitutes a really promising avenue toward the development of modern electrochemical devices, which could be of high interest for applications in chemical sensing, biosensing, electroanalysis, and solar driven fuel cells.

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