| 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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Pires, Al
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2021On manipulating the thermoelectric potential of p-type ZnO by nanostructuringcitations
- 2020Freestanding and flexible composites of magnetocaloric Gd-5(Si,Ge)(4) microparticles embedded in thermoplastic poly(methyl methacrylate) matrixcitations
- 2019Highly sensitive thermoelectric touch sensor based on p-type SnOx thin filmcitations
- 2019Multicaloric effect in a multiferroic composite of Gd-5(Si,Ge)(4) microparticles embedded into a ferroelectric PVDF matrixcitations
- 2019Printed Flexible mu-Thermoelectric Device Based on Hybrid Bi2Te3/PVA Compositescitations
- 2019High-Performance mu-Thermoelectric Device Based on Bi2Te3/Sb2Te3 p-n Junctionscitations
- 2017Highly Active Ruthenium Supported on Magnetically Recyclable Chitosan-Based Nanocatalyst for Nitroarenes Reductioncitations
- 2017Suppression of magnetostructural transition on GdSiGe thin film after thermal cyclingscitations
- 2017Bi-Te Thin Film Produced by Ion Beam Sputtering: Impact of Beam Voltage in the Seebeck Coefficientcitations
- 2015On the growth and physical-chemical characterization of Tb5Si2Ge2 thin films produced by electron-beam evaporationcitations
Places of action
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article
Highly Active Ruthenium Supported on Magnetically Recyclable Chitosan-Based Nanocatalyst for Nitroarenes Reduction
Abstract
A Ru supported on a magnetically separable chitosan-based nanomaterial (Mn@CS@Ru) was prepared by wet impregnation based on ionic gelation using sodium tripolyphosphate as a cross-linking agent. The ionic gelation of chitosan leads to a supporting matrix to promote the embedding of manganese(II) ferrite and Ru nanoparticles (NPs) by electrostatic interactions. The effects of the formulation and method parameters on the fabrication process were investigated, and the resulting as-prepared Mn@CS@Ru nanocatalyst was characterized. The catalytic activity of the Mn@CS@Ru nanomaterial was evaluated in the reduction of 4-nitrophenol (4-NP) and 4-nitroaniline (4-NA) in the presence of sodium borohydride as a reducing agent at room temperature. The turnover frequency values in the reduction of 4-NP and 4-NA were 273.9 and 336.5min(-1), respectively, which were attributed to the very small size of the hybrid nanomaterial (32.0 +/- 2.8nm with 3.9 +/- 0.1nm Ru NPs) that provided a large surface-area-to-volume ratio for the chemical reaction. Furthermore, the hybrid nanocatalyst was recovered easily by magnetic separation after the catalytic reaction and could be reused in at least 10 cycles without a loss of catalytic activity, which confirms its high stability. The present route is a new approach to synthesize highly active magnetic heterogeneous catalysts for the reduction of nitroarenes based on metallic NPs with easy accessibility, excellent activity, and convenient recovery.