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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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Guedes, Alexandra
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2024Highly Efficient and Magnetically Recyclable Non-Noble Metal Fly Ash-Based Catalysts for 4-Nitrophenol Reductioncitations
- 2024Graphitization: Microstructural and microtextural transformations of residual char from international coal combustion ashcitations
- 2024Graphitization: Microstructural and microtextural transformations of residual char from international coal combustion ashcitations
- 2023FoodSmarTag: An innovative dynamic labeling system based on pyranoflavylium-based colorimetric films for real-time monitoring of food freshnesscitations
- 2021Graphene@Metal Sulfide/Oxide Nanocomposites as Novel Photo-Fenton-like Catalysts for 4-Nitrophenol Degradationcitations
- 2020Hydrothermal Carbon/Carbon Nanotube Composites as Electrocatalysts for the Oxygen Reduction Reactioncitations
- 2018Electrochemical genoassays on gold-coated magnetic nanoparticles to quantify genetically modified organisms (GMOs) in food and feed as GMO percentagecitations
- 2018Photochromic polypropylene fibers based on UV-responsive silica@phosphomolybdate nanoparticles through melt spinning technologycitations
- 2018Petrographic and SEM/EDS characterization of bottom ash fractions obtained using magnetic separation equipment
- 2018Heteroatom-Doped Carbon Nanomaterials as Metal-Free Catalysts for the Reduction of 4-Nitrophenolcitations
- 2016Characterization of bottom ash of Pliocene lignite as ceramic composites raw material by petrographic, SEM/EDS and Raman microspectroscopical methodscitations
- 2014Tailored design of CoxMn1-xFe2O4 nanoferrites: a new route for dual control of size and magnetic propertiescitations
- 2014Gold nanoparticles decorated on Bingel-thiol functionalized multiwall carbon nanotubes as an efficient and robust catalystcitations
- 2012Multianalytical approaches to the characterisation of minerals associated with coals and the diagnosis of their potential risk by using combined instrumental microspectroscopic techniques and thermodynamic speciationcitations
- 2012Superparamagnetic MFe2O4 (M = Fe, Co, Mn) Nanoparticles: Tuning the Particle Size and Magnetic Properties through a Novel One-Step Coprecipitation Routecitations
Places of action
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article
Gold nanoparticles decorated on Bingel-thiol functionalized multiwall carbon nanotubes as an efficient and robust catalyst
Abstract
Multiwall carbon nanotubes (MWCNT) functionalized with bidentate thiol groups have been prepared through Bingel reaction followed by amidation of the malonyl ester groups with cysteamine. This material acted as a convenient support for the in situ deposition of gold nanoparticles. Chemical and structural characterization of the materials was performed by transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FTIR) and Raman spectroscopy, confirming the retention of the intrinsic carbon nanotube structural properties and the deposition of spherical gold nanoparticles (AuNPs) with diameters of 4 +/- 1 nm. This nanohybrid showed to be a highly active and robust catalyst on the total reduction of 4-nitrophenol in the presence of NaBH4, showing a rate constant of k = 0,436 min(-1), with no loss of catalytic activity after six reutilization cycles. Control materials prepared by direct immobilization of Au nanoparticles onto pristine carbon nanotubes and on Bingel functionalized MWCNT material led to lower Au loading or afforded less stable catalysts, resulting in significantly poorer catalytic activity.