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Sökning: id:"swepub:oai:DiVA.org:kau-80972" > X‑ray Photoelectron...

X‑ray Photoelectron Fingerprints of High-Valence Ruthenium−Oxo Complexes along the Oxidation Reaction Pathway in an Aqueous Environment

Silva, Jose Luis (författare)
Uppsala universitet,Materialteori,Materials Theory Division, Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden
Unger, Isaak (författare)
Uppsala universitet,Molekyl- och kondenserade materiens fysik,Molecular and Condensed Matter Physics Division, Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden
Matias, Tiago A. (författare)
Department of Fundamental Chemistry, Institute of Chemistry, University of Sã o Paulo, Av. Lineu Prestes 748, Cidade Universitária, Butanta, Sao Paulo, Brazil
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Franco, Leandro R. (författare)
Instituto de Física, Universidade de São Paulo, Cidade Universitária, São Paulo, SP, Brazil
Damas, Giane (författare)
Uppsala universitet,Materialteori,Materials Theory Division, Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden
Costa, Luciano T. (författare)
Fluminense Federal University, BRA,Instituto de Química, Departamento de Físico-química, Universidade Federal Fluminense, Outeiro de São Joã o Batista Niterói, RJ, Brazil
Toledo, Kalil C. F (författare)
Department of Fundamental Chemistry, Institute of Chemistry, University of Sã o Paulo, Av. Lineu Prestes 748, Cidade Universitária, Butanta, Sao Paulo, Brazil,Instituto de Física, Universidade de São Paulo, Cidade Universitária, São Paulo, SP, Brazil
Rocha, Tulio C. R. (författare)
Brazilian Center Research Energy & Mathematic CNPEM, BRA,Brazilian Synchrotron Light Laboratory (LNLS), Brazilian Center for Research on Energy and Materials (CNPEM), Campinas, SP, Brazil
de Brito, Arnaldo N. (författare)
University Estadual Campinas, BRA,Institute of Physics “Gleb Wataghin”, University of Campinas, Campinas, SP, Brazil
Saak, Clara-Magdalena (författare)
Uppsala universitet,Molekyl- och kondenserade materiens fysik,Molecular and Condensed Matter Physics Division, Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden
Coutinho, Kaline (författare)
University Sao Paulo, BRA
Araki, Koiti (författare)
University Sao Paulo, BRA,Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo, Cidade Universitária, Butanta, Sao Paulo, Brazil
Björneholm, Olle (författare)
Uppsala universitet,Molekyl- och kondenserade materiens fysik,Molecular and Condensed Matter Physics Division, Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden
Brena, Barbara (författare)
Uppsala universitet,Materialteori,Materials Theory Division, Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden
Araujo, Carlos Moyses (författare)
Uppsala universitet,Materialteori,Materials Theory Division, Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden
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 (creator_code:org_t)
2019-11-20
2019
Engelska.
Ingår i: Journal of Physical Chemistry Letters. - : American Chemical Society (ACS). - 1948-7185 .- 1948-7185. ; 10:24, s. 7636-7643
Relaterad länk:
https://urn.kb.se/re...
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https://doi.org/10.1...
https://urn.kb.se/re...
https://urn.kb.se/re...
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  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
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  • Recent advances in operando-synchrotron-based X-ray techniques are making it possible to address fundamental questions related to complex proton-coupled electron transfer reactions, for instance, the electrocatalytic water splitting process. However, it is still a grand challenge to assess the ability of the different techniques to characterize the relevant intermediates, with minimal interference on the reaction mechanism. To this end, we have developed a novel methodology employing X-ray photoelectron spectroscopy (XPS) in connection with the liquid-jet approach to probe the electrochemical properties of a model electrocatalyst, [RuII(bpy)2(py)-(OH2)]2+, in an aqueous environment. There is a unique fingerprint of the extremely important higher-valence ruthenium−oxo species in the XPS spectra along the oxidation reaction pathway. Furthermore, a sequential method combining quantum mechanics and molecular mechanics is used to illuminate the underlying physical chemistry of such systems. This study provides the basis for the future development of in-operando XPS techniques for water oxidation reactions.

Ämnesord

NATURVETENSKAP  -- Kemi -- Fysikalisk kemi (hsv//swe)
NATURAL SCIENCES  -- Chemical Sciences -- Physical Chemistry (hsv//eng)
NATURVETENSKAP  -- Kemi -- Teoretisk kemi (hsv//swe)
NATURAL SCIENCES  -- Chemical Sciences -- Theoretical Chemistry (hsv//eng)

Nyckelord

Chemistry - Physical Chemistry
Kemi - fysikalisk kemi

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