| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Li, Zheshen
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (24/24 displayed)
- 2024Engineered Porosity ZnO Sensor Enriched with Oxygen Vacancies Enabled Extraordinary Sub-ppm Sensing of Hydrogen Sulfide and Nitrogen Dioxide Air Pollution Gases at Low Temperature in Air
- 2022Iron carbide formation on thin iron films grown on Cu(1 0 0)citations
- 2022WO 3 Monomers Supported on Anatase TiO 2 (101), −(001), and Rutile TiO 2 (110):A Comparative STM and XPS Studycitations
- 2022WO3 Monomers Supported on Anatase TiO2(101), −(001), and Rutile TiO2(110)citations
- 2022Iron carbide formation on thin iron films grown on Cu(1 0 0):FCC iron stabilized by a stable surface carbidecitations
- 2021Tuning oxygen vacancies and resistive switching properties in ultra-thin HfO 2 RRAM via TiN bottom electrode and interface engineeringcitations
- 2021Chemical Vapor Deposition of Cobalt and Nickel Ferrite Thin Films:Investigation of Structure and Pseudocapacitive Propertiescitations
- 2021Low-Temperature Growth of Graphene on a Semiconductorcitations
- 2021Low-Temperature Growth of Graphene on a Semiconductorcitations
- 2021Tuning oxygen vacancies and resistive switching properties in ultra-thin HfO2 RRAM via TiN bottom electrode and interface engineeringcitations
- 2021Chemical vapor deposition of cobalt and nickel ferrite thin films
- 2021Chemical Vapor Deposition of Cobalt and Nickel Ferrite Thin Films: Investigation of Structure and Pseudocapacitive Propertiescitations
- 2020From Precursor Chemistry to Gas Sensors:Plasma-Enhanced Atomic Layer Deposition Process Engineering for Zinc Oxide Layers from a Nonpyrophoric Zinc Precursor for Gas Barrier and Sensor Applicationscitations
- 2020Energy band alignment at the heterointerface between CdS and Ag-alloyed CZTScitations
- 2020Energy band alignment at the heterointerface between CdS and Ag-alloyed CZTScitations
- 2020Energy band alignment at the heterointerface between CdS and Ag-alloyed CZTScitations
- 2020From precursor chemistry to gas sensors
- 2018Formation of the layered conductive magnet CrCl 2 (pyrazine) 2 through redox-active coordination chemistrycitations
- 2018Formation of the layered conductive magnet CrCl2(pyrazine)2 through redox-active coordination chemistrycitations
- 2017Gold-supported two-dimensional cobalt oxyhydroxide (CoOOH) and multilayer cobalt oxide islandscitations
- 2017Growth of aluminum oxide on silicon carbide with an atomically sharp interfacecitations
- 2017Nanoporous Platinum Doped Cerium Oxides Thin Films Grown on Silicon Substrates:Ionic Platinum Localization and Stabilitycitations
- 2017Edge reactivity and water-assisted dissociation on cobalt oxide nanoislandscitations
- 2009Self-activated, self-limiting reactions on Si surfaces
Places of action
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article
Edge reactivity and water-assisted dissociation on cobalt oxide nanoislands
Abstract
<p>Transition metal oxides show great promise as Earth-abundant catalysts for the oxygen evolution reaction in electrochemical water splitting. However, progress in the development of highly active oxide nanostructures is hampered by a lack of knowledge of the location and nature of the active sites. Here we show, through atom-resolved scanning tunnelling microscopy, X-ray spectroscopy and computational modelling, how hydroxyls form from water dissociation at under coordinated cobalt edge sites of cobalt oxide nanoislands. Surprisingly, we find that an additional water molecule acts to promote all the elementary steps of the dissociation process and subsequent hydrogen migration, revealing the important assisting role of a water molecule in its own dissociation process on a metal oxide. Inspired by the experimental findings, we theoretically model the oxygen evolution reaction activity of cobalt oxide nanoislands and show that the nanoparticle metal edges also display favourable adsorption energetics for water oxidation under electrochemical conditions.</p>