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Heteropolyacids for fuel cell applications

Heteropolyacids for fuel cell applications
Heteropolyacids for fuel cell applications
Polyoxometalates, and in particular heteropolyacids, are being studied extensively for potential applications, including as surfactants, chemical cleaners, catalysts and additives in fuel cell component materials. Heteropolyacids comprise MOx polyhedra (usually octahedral), in which M is typically W, Mo or V, surrounding one or more heteroatoms. They are commonly characterised under the Wells-Dawson, Keggin or lacunary structural configurations. It is possible to tailor their properties by modifying the central metal ion and the addenda atoms. In the context of fuel cells they are used as additives to enhance catalyst performance, as membrane additives to improve ionic conductance, and as stand-alone catalysts (electrode immobilised or electrolyte solvated). More recently they have been employed as catholyte redox mediators in novel fuel cells. This review summarises the electrochemical properties of heteropolyacids and provides a critical assessment of their applications, with a focus on fuel cells. Progress with regards to heteropolyacid-based electrochemical science and technology is summarised and key challenges are highlighted
heteropolyacid, polyoxometalate, electrochemical energy conversion, fuel cell
0013-4686
454-466
Kourasi, M.
d4b0deec-138e-457a-a893-b2f5f5c5f727
Wills, R.G.A.
60b7c98f-eced-4b11-aad9-fd2484e26c2c
Shah, A.A.
5c43ac37-c4a7-4256-88ef-8c427886b924
Walsh, F.C.
309528e7-062e-439b-af40-9309bc91efb2
Kourasi, M.
d4b0deec-138e-457a-a893-b2f5f5c5f727
Wills, R.G.A.
60b7c98f-eced-4b11-aad9-fd2484e26c2c
Shah, A.A.
5c43ac37-c4a7-4256-88ef-8c427886b924
Walsh, F.C.
309528e7-062e-439b-af40-9309bc91efb2

Kourasi, M., Wills, R.G.A., Shah, A.A. and Walsh, F.C. (2014) Heteropolyacids for fuel cell applications. Electrochimica Acta, 127, 454-466. (doi:10.1016/j.electacta.2014.02.006).

Record type: Article

Abstract

Polyoxometalates, and in particular heteropolyacids, are being studied extensively for potential applications, including as surfactants, chemical cleaners, catalysts and additives in fuel cell component materials. Heteropolyacids comprise MOx polyhedra (usually octahedral), in which M is typically W, Mo or V, surrounding one or more heteroatoms. They are commonly characterised under the Wells-Dawson, Keggin or lacunary structural configurations. It is possible to tailor their properties by modifying the central metal ion and the addenda atoms. In the context of fuel cells they are used as additives to enhance catalyst performance, as membrane additives to improve ionic conductance, and as stand-alone catalysts (electrode immobilised or electrolyte solvated). More recently they have been employed as catholyte redox mediators in novel fuel cells. This review summarises the electrochemical properties of heteropolyacids and provides a critical assessment of their applications, with a focus on fuel cells. Progress with regards to heteropolyacid-based electrochemical science and technology is summarised and key challenges are highlighted

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More information

Accepted/In Press date: 3 February 2014
Published date: 2014
Keywords: heteropolyacid, polyoxometalate, electrochemical energy conversion, fuel cell
Organisations: Engineering Science Unit

Identifiers

Local EPrints ID: 377802
URI: http://eprints.soton.ac.uk/id/eprint/377802
ISSN: 0013-4686
PURE UUID: ed3f2b18-8079-41c8-a7e3-29302a99661d
ORCID for R.G.A. Wills: ORCID iD orcid.org/0000-0002-4805-7589

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Date deposited: 18 Jun 2015 12:59
Last modified: 15 Mar 2024 03:17

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Contributors

Author: M. Kourasi
Author: R.G.A. Wills ORCID iD
Author: A.A. Shah
Author: F.C. Walsh

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