Separating bulk and surface processes in NiOx electrocatalysts for water oxidation
Impact
Scholar |
Other documents of the author: Corby, Sacha; García-Tecedor, Miguel; Tengeler, Sven; Steinert, Céline; Moss, Benjamin; Mesa, Camilo A.; Heiba, Hany Fathy; Wilson, Anna A.; Kaiser, Bernhard; Jaegermann, Wolfram; Francàs Forcada, Laia; Gimenez, Sixto; Durrant, James
Metadata
Show full item recordcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/160292
comunitat-uji-handle3:10234/160293
comunitat-uji-handle4:
INVESTIGACIONMetadata
Title
Separating bulk and surface processes in NiOx electrocatalysts for water oxidationAuthor (s)
Date
2020-08-10Publisher
Royal Society of ChemistryISSN
2398-4902Bibliographic citation
Sustainable Energy Fuels, 2020, 4, 5024Type
info:eu-repo/semantics/articleVersion
info:eu-repo/semantics/publishedVersionSubject
Abstract
Nickel oxide-based catalysts currently represent the state of the art in electrochemical water oxidation in alkaline pH. However, much of their functionality remains poorly understood, particularly regarding catalyt ... [+]
Nickel oxide-based catalysts currently represent the state of the art in electrochemical water oxidation in alkaline pH. However, much of their functionality remains poorly understood, particularly regarding catalytically active sites and mechanism. Herein, we conduct a thickness dependent study of sputter deposited NiOx films by electrochemical impedance spectroscopy and spectroelectrochemistry in order to differentiate bulk oxidation from catalytic activation. We find that while catalytic activation occurs throughout the film bulk, only the upper ≤5 nm of these films are able to participate in the water oxidation reaction, a result that may be critical in the design of next generation co-catalysts to maximise performance and minimise light absorption losses. [-]
Project code
732840 | ENE2017-85087-C3-1-R
Project title or grant
A-leaf - an artificial leaf: a photo-electro-catalytic cell from earth-abundant materials for sustainable solar production of CO2-based chemicals and fuels | Fotoelectrocatálisis, dispositivos fotoelectricosintéticos, microscopía electrónica avanzada
Rights
info:eu-repo/semantics/openAccess
This item appears in the folowing collection(s)
- INAM_Articles [521]
The following license files are associated with this item: