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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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Dobrosielska, Marta
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2023Beeswax as a natural alternative to synthetic waxes for fabrication of PLA/diatomaceous earth compositescitations
- 2023Polyamide 11 Composites Reinforced with Diatomite Biofiller—Mechanical, Rheological and Crystallization Propertiescitations
- 2022Biocomposites Based on Polyamide 11/Diatoms with Different Sized Frustulescitations
- 2022Where ppm Quantities of Silsesquioxanes Make a Difference—Silanes and Cage Siloxanes as TiO<inf>2</inf> Dispersants and Stabilizers for Pigmented Epoxy Resinscitations
- 2022Carbonate Lake Sediments in the Plastics Processing-Preliminary Polylactide Composite Case Study: Mechanical and Structural Propertiescitations
- 2022Influence of Diatomaceous Earth Particle Size on Mechanical Properties of PLA/Diatomaceous Earth Compositescitations
- 2021Sol-Gel Approach for Design of Pt/Al2O3-TiO2 System-Synthesis and Catalytic Testscitations
- 2021Methodological Aspects of Obtaining and Characterizing Composites Based on Biogenic Diatomaceous Silica and Epoxy Resinscitations
- 2021A New Method of Diatomaceous Earth Fractionation—A Bio-Raw Material Source for Epoxy-Based Compositescitations
- 2019The influence of surface physicochemistry of solid fillers on dispersion in polyurea systems
- 2018A new method of one-pot synthesis of efficient Au/SnO <inf>2</inf> electrocatalysts for fuel cells
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article
Sol-Gel Approach for Design of Pt/Al2O3-TiO2 System-Synthesis and Catalytic Tests
Abstract
Al2O3-TiO2 systems with Ti:Al 0.1, 0.5 and 1.0 molar ratio obtained by the sol–gel method have been used as a platinum support. As a precursor of alumina gel, aluminum isopropoxide has been chosen. Titanium tert-butoxylate was applied to obtain titania gel and hexachloroplatinic acid was applied as a source of platinum. The systems have been characterized by the following methods: thermogravimetric analysis (TGA), Fourier transformation infrared spectroscopy (FTIR), X-ray powder diffraction (XRPD), low-temperature nitrogen adsorption–desorption isotherms (BET, BJH), temperature-programmed reduction with hydrogen (TPR-H2) and hydrogen chemisorption. Reactions of toluene to methylcyclohexane and selective o-chloronitrobenzene (o-CNB) to o-chloroaniline (o-CAN) hydrogenation were used as the tests of systems’ catalytic activity. The application of Al2O3-TiO2 as a support has enabled the obtaining of platinum catalysts showing high activities for hydrogenation of toluene and selective hydrogenation of o-chloronitrobenzene to o-chloroaniline in the liquid phase. The highest activity in both reactions has been found for Pt/Al2O3-0.5TiO2 catalyst and the highest selectivity for Pt/Al2O3-. The activity of Pt/Al2O3-TiO2 catalysts was higher than that of alumina-supported ones