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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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Suslick, Kenneth
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2017Ultrafast Proton Transfer in Polymer Blends Triggered by Shock Wavescitations
- 2015Synthesis of Manganese Oxide Microspheres by Ultrasonic Spray Pyrolysis and Their Application as Supercapacitorscitations
- 2015High surface area iron oxide microspheres via ultrasonic spray pyrolysis of ferritin core analoguescitations
- 2015Composite CaO-based CO2 sorbents synthesized by ultrasonic spray pyrolysiscitations
- 2010A simple and highly sensitive colorimetric detection method for gaseous formaldehydecitations
- 2009Dual templating synthesis of mesoporous titanium nitride microspherescitations
- 2005Sonochemical preparation of hollow nanospheres and hollow nanocrystalscitations
- 2003A Robust Microporous Zinc Porphyrin Framework Solidcitations
- 2002Synthetic hosts by monomolecular imprinting inside dendrimerscitations
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article
Sonochemical preparation of hollow nanospheres and hollow nanocrystals
Abstract
<p>Ceramic hollow spheres of MoS<sub>2</sub> and MoO<sub>3</sub> were obtained by sonochemical synthesis of MoS<sub>2</sub> and MoO<sub>3</sub> templated on silica nanoparticles (diameters 50-500 nm) followed by acid etching to remove the silica core. The resulting hollow materials have been characterized by elemental analysis, XPS, SEM, TEM, optical absorption, and hydrodesulfurization (HDS) studies. The TEM studies on the hollow ceramic materials indicate the formation of dispersed free spheres with a hollow core. The hollow materials obtained from thermally treated MoS<sub>2</sub>/SiO<sub>2</sub> (450-700 °C) show the formation of layered MoS<sub>2</sub> (lattice fringes 6.2 Å) with a wall thickness of 6-8 layers. The MoS<sub>2</sub> hollow spheres are extremely active catalysts for the HDS of thiophene. Hollow spheres of MoO<sub>3</sub> are prepared in a similar fashion. Surprisingly, upon heating, hollow crystals of MoO<sub>3</sub> with sharp-edged truncated cubes containing inner voids are formed from the initial spheres.</p>