Polyoxometalates (POMs): from electroactive clusters to energy materials

Polyoxometalates (POMs) represent a class of nanomaterials, which hold enormous promise for a range of energy-related applications. Their promise is owing to their "special" structure that gives POMs a truly unique ability to control redox reactions in energy conversion and storage. One su...

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Published inEnergy & environmental science Vol. 14; no. 4; pp. 1652 - 17
Main Authors Horn, Michael R, Singh, Amandeep, Alomari, Suaad, Goberna-Ferrón, Sara, Benages-Vilau, Raúl, Chodankar, Nilesh, Motta, Nunzio, Ostrikov, Kostya (Ken), MacLeod, Jennifer, Sonar, Prashant, Gomez-Romero, Pedro, Dubal, Deepak
Format Journal Article
LanguageEnglish
Published Cambridge Royal Society of Chemistry 2021
Subjects
Catalysts
chemical compound
Coordination compounds
Determinant factors
electrochemical method
Energy
Energy applications
Energy conversion
Energy conversion and storages
Energy storage
Fundamental studies
Metal oxides
Metals
Molecular clusters
Nanomaterials
Nanotechnology
Oxygen atoms
Polyoxometalates
Polyoxometallates
Redox reactions
Redox-active sites
Stability
Structure property
Three-dimensional clusters
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Summary:Polyoxometalates (POMs) represent a class of nanomaterials, which hold enormous promise for a range of energy-related applications. Their promise is owing to their "special" structure that gives POMs a truly unique ability to control redox reactions in energy conversion and storage. One such amazing capability is their large number of redox active sites that arises from the complex three-dimensional cluster of metal-oxide ions linked together by oxygen atoms. Here, a critical review on how POMs emerged from being molecular clusters for fundamental studies, to next-generation materials for energy applications is provided. We highlight how exploiting the versatility and activity of these molecules can lead to improved performance in energy devices such as supercapacitors and batteries, and in energy catalyst applications. The potential of POMs across numerous fields is systematically outlined by investigating structure-property-performance relationships and the determinant factors for energy systems. Finally, the challenges and opportunities for this class of materials with respect to addressing our pressing energy-related concerns are identified. Polyoxometalates as anionic molecular metal oxides clusters with open frameworks and rich redox chemistry have outstanding versatility in energy conversion and storage research.
Bibliography:Research team at Catalan Institute of Nanoscience and Nanotechnology (ICN2), Spain. From left to right: Dr Raúl Benages-Vilau (Post-Doctoral Fellow), Prof. Pedro Gomez-Romero (Professor), Dr Sara Goberna-Ferrón (Beatriu de Pinós Post-Doctoral Fellow). The team is expert in hybrid organic-inorganic materials, graphene, nanocomposites for energy storage and conversion (lithium batteries, supercapacitors, flow batteries, solar-thermal energy, nanofluids).
Research team at Queensland University of Technology (QUT), Australia. Front row from left to right: Mr Michael Horn (PhD student), Mr Amandeep Singh (PhD student) and Dr Deepak Dubal (Associate Professor). Back row from left to right: Dr Prashant Sonar (Associate Professor), Dr Jennifer MacLeod (Associate Professor) and Prof. Nunzio Motta (Professor). We miss Ms. Suaad Alomari, Dr Nilesh Chodankar and Prof. Kostya (Ken) Ostrikov in the photo. The research of QUT team is focused on graphene, oxides, polymers, polyoxometalates (POMs), surface science, energy conversion and storage devices, and organic semiconducting materials for electronic devices.
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ISSN:1754-5692
1754-5706
1754-5706
DOI:10.1039/d0ee03407j