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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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Desario, Paul
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (25/25 displayed)
- 2021STABILIZATION OF REACTIVE OXYGEN SPECIES IN CERIA-BASED COMPOSITE AEROGELS
- 2021Synthesis and applications of WO3 nanosheets: the importance of phase, stoichiometry, and aspect ratiocitations
- 2021Designing Oxide Aerogels with Enhanced Sorptive and Degradative Activity for Acute Chemical Threatscitations
- 2021Photoenhanced Degradation of Sarin at Cu/TiO2 Composite Aerogels: Roles of Bandgap Excitation and Surface Plasmon Excitation.citations
- 2020Mesoporous Copper Nanoparticle/TiO2 Aerogels for Room-Temperature Hydrolytic Decomposition of the Chemical Warfare Simulant Dimethyl Methylphosphonatecitations
- 2020Electronic Metal–Support Interactions in the Activation of CO Oxidation over a Cu/TiO2 Aerogel Catalystcitations
- 2020Stabilization of reduced copper on ceria aerogels for CO oxidationcitations
- 2020Power of Aerogel Platforms to Explore Mesoscale Transport in Catalysis.citations
- 2019(Keynote) Effect of Architecturally Expressed Electrodes and Catalysts on Energy Storage/Conversion in Aqueous Electrolytes
- 2019Thermoelectric Properties of Nanocrystalline Silicon Films Prepared by Hot-Wire and Plasma-Enhanced Chemical-Vapor Depositionscitations
- 2018Trapping a Ru₂O₃ Corundum-like Structure at Ultrathin, Disordered RuO₂ Nanoskins Expressed in 3D
- 2018(Invited) Nanoscale Design and Modification of Plasmonic Aerogels for Photocatalytic Hydrogen Generation
- 2018Trapping a Ru2O3 Corundum-like Structure at Ultrathin, Disordered RuO2 Nanoskins Expressed in 3Dcitations
- 2017Oxidation-stable plasmonic copper nanoparticles in photocatalytic TiO2 nanoarchitecturescitations
- 2017Plasmonic Aerogels as a Three-Dimensional Nanoscale Platform for Solar Fuel Photocatalysiscitations
- 2017Effects of Nanoscale Interfacial Design on Photocatalytic Hydrogen Generation Activity at Plasmonic Au–TiO<sub>2</sub> and Au–TiO<sub>2</sub>/Pt Aerogels
- 2017Demonstrating the Activity and Stability of Conformal RuO<sub>2</sub> "Nanoskins" on Technologically-Relevant, 3D Electrode Suports for Water Oxidation in Acid Electrolyte
- 2017Oxidation−Stable Plasmonic Copper Nanoparticles in Photocatalytic TiO<sub>2</sub> Nanoarchitectures
- 2017Competitive Oxygen Evolution in Acid Electrolyte Catalyzed at Technologically Relevant Electrodes Painted with Nanoscale RuO2citations
- 2017Electroless Deposition of Disordered RuO<sub>2</sub> Nanoskins: An Example from the Fourth Quadrant of Electronic Materials
- 2016Aerogel Architectures Boost Oxygen‐Evolution Performance of NiFe2Ox Spinels to Activity Levels Commensurate with Nickel‐Rich Oxidescitations
- 2013Plasmonic enhancement of visible-light water splitting with Au-TiO2 composite aerogels.citations
- 2013Electron Tomography of Gold Nanoparticles in Titania Composite Aerogels: Probing Structure to Understand Photochemistry
- 2012Nanoscale structure of Ti1−xNbyO2 mixed-phase thin films: Distribution of crystal phase and dopants
- 2011Effect of oxygen deficiency on the photoresponse and reactivity of mixed phase titania thin filmscitations
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article
Nanoscale structure of Ti1−xNbyO2 mixed-phase thin films: Distribution of crystal phase and dopants
Abstract
Transmission electron microscopy (polycrystalline electron diffraction, nanoelectron diffraction, and energy dispersive x-ray spectroscopy) was used to determine the dispersion of crystal phase and Nb dopants in mixed-phase (anatase and rutile) Ti1−xNbyO2 thin films prepared by reactive sputtering. When co-sputtering mixed-phase TiO2 with a dopant, it is unclear how the crystal phases are distributed within thin film structures, what the dominant interfaces are, and how the dopant is distributed within the crystal phases. In the Ti1−xNbyO2 films, anatase and rutile grains were found to be homogeneously dispersed indicating that anatase/rutile interfaces are the dominant interfaces. Anatase/rutile interfaces are a critical feature of mixed-phase materials which impart high reactivity to the composite. Nb homogeneously dispersed at low concentrations, but at high concentrations, Nb segregated in the rutile phase. There is an apparent threshold beyond which Nb segregates according to its higher solubility in rutile due to a better lattice fit.