| 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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Roguska, Agata
Laboratoire Bourguignon des Matériaux et Procédés
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2023Coatings deposited by physical vapor deposition (PVD) on high-speed steel used in the processing of wood materials
- 2021Influence of microstructural features on the growth of nanotubular oxide layers on β-phase Ti-24Nb-4Zr-8Sn and α + β-phase Ti-13Nb-13Zr alloyscitations
- 2020In vitro evaluation of degradable electrospun polylactic acid/bioactive calcium phosphate ormoglass scaffoldscitations
- 2020Electrocatalytic Metallic Nanostructures Prepared By Electrorefining and Cathodic Corrosion
- 2019Effect of Pt Deposits on TiO2Electrocatalytic Activity Highlighted by Electron Tomographycitations
- 2017New synthesis route to decorate Li 4 Ti 5 O 12 grains with GO flakescitations
- 2016STEM study of Li4Ti5O12 anode material modified with Ag nanoparticlescitations
- 2016A novel hybrid nanofibrous strategy to target progenitor cells for a cost-effective in situ angiogenesiscitations
- 2014Anodic polarization of nanocrystalline titaniumcitations
Places of action
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article
Effect of Pt Deposits on TiO2Electrocatalytic Activity Highlighted by Electron Tomography
Abstract
Characterizing materials at small scalespresents major challenges in the engineering of nanocomposite materials having a high specific surface area.Here, we show the application of electron tomography todescribe the three-dimensional structure of highly orderedTiO2 nanotube arrays modified with Pt nanoparticles. Thetitanium oxide nanotubes were prepared by the electrochemical anodization of a Ti substrate after which Pt was deposited by magnetron sputtering. Such a composite shows high electrochemical activity that depends on the amount of the metal and the morphological parameters of the microstructure. However, a TiO2 structure modified with metallic nanoparticles has never been visualized in 3D, making it very difficult to understand the relationship between electrocatalytic activity and morphology. In this paper, TiO2 nanotubes of different sizes and different amounts of Pt were analyzed using the electron microscopy technique. Electrocatalytic activity was studied using the cyclic voltammetry (CV) method. For selected samples, electron tomography 3D structure reconstruction was performed to describe their fine microstructure. The highest activity was detected in the sample having bigger nanotubes (25 V) where the porosity of the structure was high and the Pt content was 0.1 mg cm−2. 3D imaging using electron tomography opens up new possibilities in the design of electrocatalytic materials.