The Role of L‐Ligands in Silica‐Supported Ti Oxo/Imido Heterometathesis Catalysts
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DOI: 10.1002/aoc.7746
Abstract: We report here the preparation and characterization of new well‐defined silica‐supported Ti imido complexes that present an L‐ligand variation in a structure of currently the most active oxo/imido heterometathesis catalyst (≡SiO)Ti(=NtBu)(Me2Pyr)(py)2 (1s), where py is… read more here.
Keywords: oxo imido; imido heterometathesis; imido; role ligands ... See more keywords
Highly Selective Silica‐supported Copper Catalysts Derived from Copper Phyllosilicates in the Hydrogenation of Adipic Acid to 1,6‐hexanediol
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DOI: 10.1002/cctc.201801580
Abstract: Hydrogenation of adipic acid (AA) is a potential way to prepare 1,6‐hexanediol (HDOL). Herein, silica‐supported copper catalysts derived from copper phyllosilicates were synthesized, characterized, and tested in the hydrogenation of AA to HDOL. In a… read more here.
Keywords: supported copper; adipic acid; copper; hydrogenation adipic ... See more keywords
Effects of Catalyst Synthesis Methods on the Physicochemical Properties of Silica‐Supported Au–Ru Bimetallic Catalysts and their Influence on the Oxidation of Phenols with H2O2
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DOI: 10.1002/open.202400484
Abstract: Herein, silica‐supported Au–Ru catalysts with 5% loading for each metal were prepared by microwave‐assisted loading (MW) and deposition (DP) methods. Au–Ru nanoparticles are obtained on MW‐5Au5Ru while short Au–Ru nanochains are obtained on DP‐5Au5Ru. The… read more here.
Keywords: catalyst; influence; oxidation tmhq; oxidation ... See more keywords
Silica-supported chromia-titania catalysts for selective formation of lactic acid from a triose in water
Sign Up to like & getrecommendations! Published in 2019 at "Applied Catalysis A: General"
DOI: 10.1016/j.apcata.2018.11.018
Abstract: Abstract A variety of silica-supported metal oxide catalysts were prepared by the incipient wetness impregnation method and were used for the conversion of dihydroxyacetone to lactic acid. A titanium oxide catalyst with Bronsted acid sites… read more here.
Keywords: chromia titania; silica supported; lactic acid; acid ... See more keywords
Nature of active tin species and promoting effect of nickle in silica supported tin oxide for dehydrogenation of propane
Sign Up to like & getrecommendations! Published in 2017 at "Applied Surface Science"
DOI: 10.1016/j.apsusc.2017.02.216
Abstract: Abstract Different with Wang et. al.’s study, we found that polymeric Si–O–Sn 2+ rather than Ni-Sn alloy and metallic Sn are active species in silica-supported tin oxide catalysts for dehydrogenation of propane. The results showed… read more here.
Keywords: tin; tin species; active tin; supported tin ... See more keywords
Synthesis of a mononuclear Ti complex: A molecular precursor strategy for control of silica supported single site Ti decorated Au catalysts for cyclooctene epoxidation
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DOI: 10.1016/j.apsusc.2018.06.015
Abstract: Abstract A mononuclear titanium single crystal C36H40O8Si3Ti was synthesized and designed as a molecular precursor to produce silica supported single site Ti decorated Au catalysts of high activity and selectivity. Single site Ti–O species were… read more here.
Keywords: supported single; single site; molecular precursor; silica supported ... See more keywords
An efficient silica supported Chitosan@vanadium catalyst for asymmetric sulfoxidation and its application in the synthesis of esomeprazole
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DOI: 10.1016/j.catcom.2017.01.018
Abstract: Abstract A new type of silica supported Chitosan@vanadium complex was used as a highly active heterogeneous catalyst for asymmetric oxidation of aryl alkyl sulfides. With the economic aqueous H2O2 (30%) as the oxidant, the oxidation… read more here.
Keywords: catalyst asymmetric; silica supported; asymmetric sulfoxidation; chitosan vanadium ... See more keywords
Highly active hybrid mesoporous silica-supported base organocatalysts for C C bond formation
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DOI: 10.1016/j.cattod.2019.09.041
Abstract: Abstract New base hybrid catalysts, based on silyl-derivatives of molecules carrying amino, diamino, pyrrolidine, pyrazolium and imidazolium functionalities have been successfully achieved through post synthetic grafting onto M41S-type support. Different characterization techniques were implemented to… read more here.
Keywords: bond; mesoporous silica; hybrid mesoporous; highly active ... See more keywords
Support effects in metal catalysis: a study of the behavior of unsupported and silica-supported cobalt catalysts in the hydrogenation of CO2 at atmospheric pressure
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DOI: 10.1016/j.cattod.2019.10.016
Abstract: Abstract Two 20 wt.% Co/SiO2 catalysts were prepared using silica gel as a support and cobalt acetate and nitrate as precursors, respectively. As a comparison unsupported amorphous cobalt nanoparticles (10–80 nm) were synthesized by decomposing cobalt carbonyl.… read more here.
Keywords: silica supported; cobalt; co2; support ... See more keywords
Designing vapor silica-supported sulfur cathode for long-life lithium–sulfur battery
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DOI: 10.1016/j.cej.2019.122843
Abstract: Abstract Poor cycle performance and low coulombic efficiency are bottleneck problems that hinder the further development of lithium–sulfur (Li–S) batteries. In this study, vapor silica-supported S is prepared by using a facile impregnation method and… read more here.
Keywords: long life; silica; lithium sulfur; vapor silica ... See more keywords
Electro-assisted sulfite activation by a silica supported cobalt catalyst for the degradation of organic pollutants in near-neutral pH condition
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DOI: 10.1016/j.cej.2020.126168
Abstract: Abstract The desulfurization by-product (e.g. sulfite) treatment and water pollution are two widespread concerns, while the sulfite activation by transition metals can be adopted to solve both of them simultaneously. In this study, a silica-supported… read more here.
Keywords: degradation; system; activation; sulfite activation ... See more keywords