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In situ XAFS of acid-resilient iridate pyrochlore oxygen evolution electrocatalysts under operating conditions

In situ XAFS of acid-resilient iridate pyrochlore oxygen evolution electrocatalysts under operating conditions
In situ XAFS of acid-resilient iridate pyrochlore oxygen evolution electrocatalysts under operating conditions
Pyrochlore iridates (Na,Ca)2-xIr2O6·H2O are acid-stable electrocatalysts that are candidates for use in electrolysers and fuel cells. Ir LIII-edge X-ray absorption fine structure spectroscopy in 1 M H2SO4 at oxygen evolution conditions suggests the involvement of the electrons from the conduction band of the metallic particles, rather than just surface iridium reacting.
1463-9076
Burnett, David L.
5b18578e-fb92-4298-b029-b65ea4db2684
Petrucco, Enrico
a4b154d1-20be-4df0-8912-8b32f7561ffc
Russell, Andrea E.
b6b7c748-efc1-4d5d-8a7a-8e4b69396169
Kashtiban, Reza J.
2f6b0979-49ee-4e16-9c52-1ed7653c0485
Sharman, Jonathan D.B.
99568bba-42d3-40a1-9258-aabe348b8f2d
Walton, Richard I.
f6c3cb7e-643e-4f14-819f-84d521f4634f
Burnett, David L.
5b18578e-fb92-4298-b029-b65ea4db2684
Petrucco, Enrico
a4b154d1-20be-4df0-8912-8b32f7561ffc
Russell, Andrea E.
b6b7c748-efc1-4d5d-8a7a-8e4b69396169
Kashtiban, Reza J.
2f6b0979-49ee-4e16-9c52-1ed7653c0485
Sharman, Jonathan D.B.
99568bba-42d3-40a1-9258-aabe348b8f2d
Walton, Richard I.
f6c3cb7e-643e-4f14-819f-84d521f4634f

Burnett, David L., Petrucco, Enrico, Russell, Andrea E., Kashtiban, Reza J., Sharman, Jonathan D.B. and Walton, Richard I. (2020) In situ XAFS of acid-resilient iridate pyrochlore oxygen evolution electrocatalysts under operating conditions. Physical Chemistry Chemical Physics. (In Press)

Record type: Article

Abstract

Pyrochlore iridates (Na,Ca)2-xIr2O6·H2O are acid-stable electrocatalysts that are candidates for use in electrolysers and fuel cells. Ir LIII-edge X-ray absorption fine structure spectroscopy in 1 M H2SO4 at oxygen evolution conditions suggests the involvement of the electrons from the conduction band of the metallic particles, rather than just surface iridium reacting.

Text
In Situ XAFS of Iridate Pyrochlore TEMPLATE_Revised Accepted - Accepted Manuscript
Available under License University of Southampton Accepted Manuscript Licence.
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Accepted/In Press date: 22 April 2020

Identifiers

Local EPrints ID: 439657
URI: http://eprints.soton.ac.uk/id/eprint/439657
ISSN: 1463-9076
PURE UUID: 6ac49b5a-9296-4714-8e4c-022c52e2791d
ORCID for Andrea E. Russell: ORCID iD orcid.org/0000-0002-8382-6443

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Date deposited: 29 Apr 2020 16:30
Last modified: 17 Mar 2024 02:46

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Contributors

Author: David L. Burnett
Author: Enrico Petrucco
Author: Andrea E. Russell ORCID iD
Author: Reza J. Kashtiban
Author: Jonathan D.B. Sharman
Author: Richard I. Walton

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