| 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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Neves, Ic
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2021Performance of self-cleaning cotton textiles coated with TiO2, TiO2-SiO2 and TiO2-SiO2-HY in removing Rhodamine B and Reactive Red 120 dyes from aqueous solutionscitations
- 2020Binuclear furanyl-azine metal complexes encapsulated in NaY zeolite as efficiently heterogeneous catalysts for phenol hydroxylationcitations
- 2019Photocatalytic performance of N-doped TiO(2)nano-SiO2-HY nanocomposites immobilized over cotton fabricscitations
- 2015Preparation and assessment of antimicrobial properties of bimetallic materials based on NaY zeolitecitations
- 2013Nanocomposites of poly(epsilon-caprolactone) doped with titanium speciescitations
- 2011Encapsulation of alpha-cyano-4-hydroxycinnamic acid into a NaY zeolitecitations
- 2011Stability of nanocomposites of poly(epsilon-caprolactone) with tungsten trioxidecitations
- 2010Enhancement of the Dielectric Constant and Thermal Properties of alpha-Poly(vinylidene fluoride)/Zeolite Nanocompositescitations
- 2009Redox properties of (1-(2-pyridylazo)-2-naphthol)copper(II) encapsulated in Y Zeolitecitations
- 2008Immobilization of Fe(III) complexes of pyridazine derivatives prepared from biosorbents supported on zeolitescitations
- 2008Organic-inorganic hybrid matrix doped with alkenyldiazenido complexes of molybdenumcitations
- 2004Synthesis and immobilization of molybdenum complexes in a pillared layered claycitations
Places of action
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article
Enhancement of the Dielectric Constant and Thermal Properties of alpha-Poly(vinylidene fluoride)/Zeolite Nanocomposites
Abstract
Different commercial Y zeolites derivate from faujasite structure with similar total Si/Al ratio, NaY (Si/Al = 2.83), HY (Si/Al = 2.80), and HUSY (Si/Al = 3.00), but different framework Si/Al ratios were used to prepare alpha-poly(vinylidene fluoride) (alpha-PVDF)/zeolite nanocomposites. Structural and textural characterization of different Y zeolites was obtained by XRD, FTIR, elemental analysis and nitrogen adsorption isotherms. Nanocomposite films were prepared containing 14% (w/w) of zeolite and characterized in terms of the dielectric response and thermal stability. The best dielectric properties were obtained with NaY because of its smaller framework Si/Al ratio, which means a larger number of sodium in the zeolite structure. For this zeolite, the dielectric constant was increased by a factor higher than two, maintaining unaltered the dielectric loss for frequencies higher than 0.5 MHz. The zeolite HUSY, which presents an extended mesoporosity, shows the lowest onset temperature for thermal degradation. To clarify the origin of the dielectric response of the nancomposites, zeolites with different sodium amounts were obtained by ion exchange treatment using NaNO(3) for HY and NH(4)NO(3) for NaY. The dielectric constant was enhanced with increasing sodium content in the zeolite framework.