Results 11 to 20 of about 41,757 (266)

MCM-48 from rice husk ash as a novel heterogeneous catalyst for esterification of glycerol with oleic acid: Catalyst preparation, characterization, and activity

open access: yesCase Studies in Chemical and Environmental Engineering, 2023
Mobil Composition of Matter No. 48 (MCM-48) was used as a heterogeneous catalyst to produce glycerol oleates from the esterification of glycerol with oleic acid. MCM-48 was prepared using rice husk ash (RHA) as a silica source by a hydrothermal autoclave
Badoor M. Kurji, Ammar S. Abbas
doaj   +1 more source

Single‐Site Heterogeneous Catalysts [PDF]

open access: yesChemInform, 2005
AbstractFor Abstract see ChemInform Abstract in Full Text.
Thomas, John Meurig   +2 more
openaire   +4 more sources

Application of scanning electron microscopy in catalysis [PDF]

open access: yesActa Periodica Technologica, 2004
A short survey of various information obtained by scanning electron microscopy (SEM) in the investigation of heterogeneous catalysts and nano-structured materials have been presented.
Lomić Gizela A.   +3 more
doaj   +1 more source

Palladium Supported on Porous Organic Polymer as Heterogeneous and Recyclable Catalyst for Cross Coupling Reaction

open access: yesMolecules, 2022
Palladium immobilized on an amide and ether functionalized porous organic polymer (Pd@AEPOP) is reported to be an effective heterogeneous catalyst for the Heck cross-coupling reaction of aryl iodides with styrene for the synthesis of diphenylethene ...
Guanying Shi, Zhenhua Dong
doaj   +1 more source

Selective Oxidation of Cyclohexene, Toluene and Ethyl Benzene Catalyzed by Bis-(L-tyrosinato)copper(II), Immersed in a Magnetite-Infused Silica Matrix [PDF]

open access: yesNanochemistry Research, 2016
Bis-(L-tyrosinato)copper(II) was reacted with 3-(chloropropyl)-trimethoxysilane functionalized silica that has infused magnetite to yield a magnetically separable catalyst in which the copper carboxylate is covalently linked to the silica matrix through ...
Massomeh Ghorbanloo   +2 more
doaj   +1 more source

Development of Sulphonated Sago Pith Waste Catalyst for Esterification of Palm Fatty Acid Distillate to Methyl Ester

open access: yesChemical Engineering Transactions, 2020
Biodiesel is considered as one of the renewable sources of energy that has been highlighted as an alternative fuel due to its versatile properties. Despite the fact that it is remarkable, there are several issues such as its industrial production cost ...
Zarifah Zailan   +5 more
doaj   +1 more source

Comparison of Ethylene/1-Hexene Copolymers Microstructures Synthesized by Homogeneous and Heterogeneous Metallocene Catalysts [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2013
The substituted (bis-2-PhIndZrCl2) and non-substituted (bis-IndZrCl2) indenylbased metallocene catalysts were synthesized and used in homogenous and heterogeneous forms for copolymerization of ethylene and 1-hexene.
Saeid Ahmadjo
doaj   +1 more source

Biodiesel preparation from Camelina sativa oil by homogeneous and heterogeneous transesterification [PDF]

open access: yesE3S Web of Conferences
Biodiesel is one of the possible alternatives to diesel fuel to address the issue of fossil fuels and their impact on the environment. Substituting homogeneous transesterification with heterogeneous offers advantages such as improved catalyst and product
Bérešová Miroslava   +2 more
doaj   +1 more source

Magnetically Separable Base Catalysts: Heterogeneous Catalysis vs. Quasi-Homogeneous Catalysis

open access: yesApplied Sciences, 2012
The synthesis of magnetically separable quasi-homogeneous base catalyst and heterogeneous base catalyst is described. The quasi-homogeneous catalyst is achieved by supporting silane monomers functionalized with different amine groups directly on the ...
Raed Abu-Reziq, Howard Alper
doaj   +1 more source

SnCl4/nano-sawdust as an Efficient Bio-based Catalyst for the Synthesis of 2-Substituted Benzothiazoles and Benzimidazoles [PDF]

open access: yesJournal of Nanostructures, 2019
SnCl4/nano-sawdust was prepared as a carbohydrate-based catalyst containing of tin bearing cellulose units. The catalyst was characterized by X-ray diffraction (XRD), fourier transform infrared spectroscopy (FT-IR), field emission scanning electron ...
Bi Bi Fatemeh Mirjalili   +3 more
doaj   +1 more source

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