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

Burnett, David L; Petrucco, Enrico; Russell, Andrea E; Kashtiban, Reza J; Sharman, Jonathan D B; Walton, Richard I

Burnett, David L; Petrucco, Enrico; Russell, Andrea E; Kashtiban, Reza J; Sharman, Jonathan D B; Walton, Richard I.

Afiliación

Burnett DL; Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK. r.i.walton@warwick.ac.uk.

Phys Chem Chem Phys ; 22(34): 18770-18773, 2020 Sep 14.

Article en En | MEDLINE | ID: mdl-32421133

ABSTRACT

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.

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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Chem Chem Phys Asunto de la revista: BIOFISICA / QUIMICA Año: 2020 Tipo del documento: Article País de afiliación: Reino Unido

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