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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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Ikeda, Shigeru
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (5/5 displayed)
- 2012A perspective on fabricating carbon-based nanomaterials by photocatalysis and their applicationscitations
- 2009Morphological control of carbon carrier in Pt-carbon nanocomposites derived from photocatalytic reactions on titanium(IV) oxide powderscitations
- 2009Origin of the high activity of porous carbon-coated platinum nanoparticles for aerobic oxidation of alcoholscitations
- 2008Photocatalytic route for synthesis of hollow porous carbon/Pt nanocomposites with controllable density and porositycitations
- 2008Rhodium nanoparticle encapsulated in a porous carbon shell as an active heterogeneous catalyst for aromatic hydrogenationcitations
Places of action
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article
Photocatalytic route for synthesis of hollow porous carbon/Pt nanocomposites with controllable density and porosity
Abstract
Simultaneous photoreduction of Pt(IV) ions and photooxidative polymerization of phenol on the surface of titanium(IV) oxide (TiO<sub>2</sub>) under ultraviolet light irradiation induced the formation of a composite, Pt-loaded TiO<sub>2</sub> covered with a layer of phenolic polymer. Subsequent carbonization of the polymer layer and removal of TiO<sub>2</sub> core particles yielded hollow carbon incorporated with platinum nanoparticles (<em>n</em>Pt@<em>h</em>C). By varying the photoirradiation time, appreciable changes in density and porosity of the polymer layer and the carbon shell in <em>n</em>Pt@<em>h</em>C were observed: prolonged irradiation induced a densification of the carbon matrix, resulting in a decrease in pore volume. Mainly due to the modulation of active surface of Pt nanoparticles, the densification of carbon was found to influence catalytic activity for hydrogenation of normal olefins.