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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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Torruella, Pau
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Topics
Publications (9/9 displayed)
- 2019Photoelectrochemically Active N-Adsorbing Ultrathin TiO <inf>2</inf> Layers for Water-Splitting Applications Prepared by Pyrolysis of Oleic Acid on Iron Oxide Nanoparticle Surfaces under Nitrogen Environmentcitations
- 2018Voltage-controlled ON−OFF ferromagnetism at room temperature in a single metal oxide filmcitations
- 2018Atomic-scale determination of cation inversion in spinel-based oxide nanoparticlescitations
- 2018Voltage-controlled ON-OFF ferromagnetism at room temperature in a single metal oxide filmcitations
- 2018Atomic-Scale Determination of Cation Inversion in Spinel-Based Oxide Nanoparticlescitations
- 2017Seeded Growth Synthesis of Au-Fe3O4 Heterostructured Nanocrystals : Rational Design and Mechanistic Insightscitations
- 2017Seeded Growth Synthesis of Au-Fe<inf>3</inf>O<inf>4</inf> Heterostructured Nanocrystals: Rational Design and Mechanistic Insightscitations
- 2017High Electrocatalytic Response of a Mechanically Enhanced NbC Nanocomposite Electrode Toward Hydrogen Evolution Reactioncitations
- 2016Synthesis and thermoelectric properties of noble metal ternary chalcogenide systems of Ag–Au–Se in the forms of alloyed nanoparticles and colloidal nanoheterostructurescitations
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article
Photoelectrochemically Active N-Adsorbing Ultrathin TiO <inf>2</inf> Layers for Water-Splitting Applications Prepared by Pyrolysis of Oleic Acid on Iron Oxide Nanoparticle Surfaces under Nitrogen Environment
Abstract
<p>Highly performing photocatalytic surfaces are nowadays highly desirable in energy fields, mainly due to their applicability as photo water-splitting electrodes. One of the current challenges in this field is the production of highly controllable and efficient photoactive surfaces on many substrates. Atomic layer deposition has allowed the deposition of photoactive TiO<sub>2</sub>layers over wide range of materials and surfaces. However, nitrogen doping of the growing layers, a highly effective way of controlling the absorption edges of photoactive surfaced, is still a challenging task. Here, the preparation of hierarchical nanostructured surfaces based on Langmuir–Schaefer and atomic layer deposition is proposed. Ultrathin TiO<sub>2</sub>layers that are photoelectrochemically active in water splitting are prepared by a relatively low-temperature catalytic decomposition of oleic acid capping layers of iron oxide nanoparticles and the posterior nitrogen adsorption. The results evidence that simple N-adsorption is sufficient to narrow the bandgap of TiO<sub>2</sub>layers that is equal to bandgap narrowing (0.12 eV) observed for substitutionally N-doped materials. The photocatalytic activity tests of the prepared surfaces in water-splitting applications demonstrate ≈90% increase in the activity of the N-adsorbing TiO<sub>2</sub>layers.</p>