SBA-15
Top PDF SBA-15:
Synthesis, characterization and catalytic activity of highly dispersed Mo-SBA-15
... of SBA-15 materials because of its high metal content should influence in a stronger way, on both the isotherm and the XRD ...from SBA-15 materials, is also clearly evident, and the pronounced ...
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CO2 adsorption performance of aminofunctionalized SBA-15 under post-combustion conditions
... of SBA-15 was added and the mixture was stirred for 30 ...named SBA-15-x (y), where x stands for the functionalization agent employed (either PEI or TEPA) and y represents the organic weight ...
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Synthesis and characterization of SBA-15 materials functionalized with olefinic groups and subsequent modification through oxidation procedures
... of SBA-15 involving the co-condensation of the alkenyl-silicon precursor together with silicon alkoxides is clearly superior than any other post-synthetic pathway, even if acid catalysts are used to drive ...
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Perfluorinated nafion-modified SBA-15 materials for catalytic acylation of anisole
... According to the catalytic performance of Nafion/SBA-15 samples for the acylation of anisole with acetic anhydride in terms of anisole conversion and specific activity, ...
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New insights in the deactivation of sulfonic modified SBA-15 catalysts for biodiesel production from low-grade oleaginous feedstock
... functionalized SBA-15 materials have been used in the production of biodiesel from low grade oleaginous ...functionalized SBA-15 materials seems to occur in this case by ion exchange of the ...
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Continuous production of biodiesel from low grade feedstock in presence of Zr-SBA-15: Catalyst performance and resistance against deactivation
... activity and stability of Zr-SBA-15 to produce fatty acid methyl esters (FAME). In 9[r] ...
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Zr-SBA-15 Acid Catalyst: Optimization of the Synthesis and Reaction Conditions for Biodiesel Production from Low-grade Oils and Fats
... The production of biodiesel by methanolysis of highly acidic crude palm oil has been optimized for the Zr-SBA-15 heterogeneous acid catalyst. A dual optimization procedure has been carried out using surface ...
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Functionalization of SBA-15 by an Acid-Catalyzed Approach. A Surface Characterization Study
... with SBA-15 surface silanols and the physical sorption of ethanol in the organically modified samples were ...surface SBA-15 silanols fully accessible to the ethanol sorption and, in this ...
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Estudio de la influencia de las condiciones de sulfuración sobre catalizadores soportados en SBA 15 y γ Al2O3, evaluados en hidrodesulfuración de Dibenzotiofeno
... Recientemente, el estudio para encontrar el soporte adecuado para catalizadores de HDS se enfoca a materiales mesoporosos de sílice (MCM-41, HMS, SBA-15, SBA-16, etc.), los cuales son buenos ...
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Encapsulation of compounds biphenyls into SBA-15: synthesis of composites for application
... Released tests of compound biphenyls were carried out in order to investigate the effect of encapsulation of these organic molecules into SBA-15. The encapsulation of BVA and BEG could be used for different ...
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Fries rearrangement of phenyl acetate over sulfonic modified mesostructured SBA-15 materials
... The feasibility of tuning the acid strength of the sulfonic groups by close attachment of different moieties might increase their catalytic performance in the Fries rearrangement of phenyl acetate. We have shown earlier ...
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Agglomeration of Ti-SBA-15 with clays for liquid phase olefin epoxidation in a continuous fixed bed reactor.
... of SBA-15 type mesostructured materials can be achieved by post-synthesis grafting treatments, involving the reaction between the silica support and a solution containing the titanium starting material ...
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Direct synthesis of organically modified Ti-SBA-15 materials
... This fact could be partially due to the incorporation of the methyl functionalities onto the surface of the hydrophobized materials which dilutes the titanium content in the final materials, but such a pronounced ...
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Degradation of phenolic aqueous solutions by high frequency sono-fenton systems (US-Fe2O3/SBA-15-H2O2)
... acoustic cavitation with Fenton-like reactions increasing hydroxyl radical generation in a so-called sono-Fenton oxidation system. In this way, promising results have been reported in the literature for the use of ...
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Direct synthesis and post-oxidation of SBA-15 and MCM-41 functionalized with butenyl groups.
... One way to modify the physical and chemical properties of mesoporous materials, like MCM-41 [1] and SBA-15 [2], for improving the attachment of different compounds lies on the incorporation of organic ...
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Secuestradores mesoporosos de paraquat a partir de SBA 15 y arcillas
... Un compósito es la unión de dos o más materiales en una escala macroscópica para dar una combinación de propiedades que no se puede lograr de otra manera (Gibson, 2016). Por consiguiente, un material nanocompuesto es ...
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Deshidrogenación oxidativa suave de propano sobre catalizadores de Pt-Ir/Mg(x)-SBA-15Mild oxidative dehydrogenation of propane over Pt-Ir/Mg(x)-SBA-15 catalysts
... del soporte (es decir, se estimó una incorporación de 2% en peso de Mg), lo que nos sugiere que una parte del magnesio no se incorporó a la red del soporte y otra proporción quedó disuelta en la solución, la cual fue ...
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Friedel Crafts acylation of aromatic compounds over arenesulfonic containing mesostructured SBA-15 materials
... catalysts seem to be an attractive alternative to the homogeneous reaction. Mainly zeolites, exchanged clays, Nafion/silica composites and even grafite have been tested as heterogeneous acylation catalysts over different ...
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Ethylene polymerization over chromium supported onto SBA-15 mesoporous materials
... Ethylene polymerization catalysts have been prepared by incorporation of chromium (III) acetylacetonate onto siliceous SBA-15 swelled mesoporous materials. Catalysts characterization includes DRX, FTIR, ...
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Synthesis and encapsulation of bis-eugenol in a mesoporous solid material: Enhancement of the antioxidant activity of a natural compound from Clove Oil.
... silica SBA-15 (SBA) was prepared by using Pluronic P123 triblock copolymer surfactant as a template in acid media according to the literature ...
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