Results 21 to 30 of about 36,454 (168)

Valorisation of terpenes by continuous flow hydrogenation over 3D-printed Palladium catalysts

open access: yesTetrahedron Green Chem, 2023
The hydrogenation of the monoterpene β-myrcene, the sesquiterpene farnesene and the triterpene squalene was studied in a custom-built continuous flow reactor using 3D printed stainless steel static mixers coated with Palladium catalyst.
Ivan Martinez-Botella   +3 more
doaj   +1 more source

Recent Progress in Iridium-Catalyzed Enantioselective Hydrogenation: Tetrasubstituted Olefins and Polyenes

open access: yesCHIMIA, 2008
Iridium-catalyzed enantioselective hydrogenation has become the method of choice to convert prochiral unfunctionalized olefins to optically active compounds.
Marcus G. Schrems   +2 more
doaj   +1 more source

Efficient NiIr alloy catalyst for selective hydrogenation of benzonitrile, crotonaldehyde and benzylideneacetone

open access: yesCatalysis Communications, 2023
SiO2-supported NiIr alloy acted as an effective heterogeneous catalyst for the hydrogenation of benzonitrile, crotonaldehyde and benzylideneacetone, showing much higher activity than monometallic Ni/SiO2 and Ir/SiO2 catalysts and superior selectivity to ...
Jia-qi Bai   +10 more
doaj   +1 more source

Synthesis of Ni/NiAlOx Catalysts for Hydrogenation Saturation of Phenanthrene

open access: yesFrontiers in Chemistry, 2021
The saturation of octahydrophenanthrene was the rate-determining step in the hydrogenation process from phenanthrene to perhydrophenanthrene, which was due to the steric hindrance and competitive adsorption of octahydrophenanthrene.
Dao-Cheng Liu   +10 more
doaj   +1 more source

Development and industrial application of catalyzer for low-temperature hydrogenation hydrolysis of Claus tail gas

open access: yesNatural Gas Industry B, 2015
With the implementation of more strict national environmental protection laws, energy conservation, emission reduction and clean production will present higher requirements for sulfur recovery tail gas processing techniques and catalyzers.
Honggang Chang   +6 more
doaj   +1 more source

Ligand-controlled regiodivergent and enantioselective C–H cyanation of secondary amines

open access: yesNature Communications
Aliphatic amines, such as N,N-dialkyl secondary amines, represent important scaffolds in bioactive molecules, driving significant interest in their regio- and stereoselective C–H functionalisation.
Yang-Jie Mao   +8 more
doaj   +1 more source

Converting copper sulfide to copper with surface sulfur for electrocatalytic alkyne semi-hydrogenation with water

open access: yesNature Communications, 2021
Electrocatalytic alkyne semi-hydrogenation to alkenes with water as the hydrogen source using a low-cost noble-metal-free catalyst is highly desirable but challenging because of their over-hydrogenation to undesired alkanes.
Yongmeng Wu   +5 more
doaj   +1 more source

Improvement of the selectivity of isophorone hydrogenation by Lewis acids [PDF]

open access: yesRoyal Society Open Science, 2018
The selective hydrogenation of isophorone (3,5,5-trimethyl-2- cyclohexen-1-one) to produce 3,3,5-trimethylcyclohexanone (TMCH), an important organic solvent and pharmaceutical intermediate, is of significance in industry.
Yucui Hou   +3 more
doaj   +1 more source

Bifunctional Pd sites on Pd4/Co3O4 nanowires for high selectivity of pyrazine electrocatalytic hydrogenation with water as the hydrogen source [PDF]

open access: yesRSC Applied Interfaces
Liquid organic hydrogen carriers (LOHCs) are considered highly promising materials for hydrogen storage. However, hydrogenation and dehydrogenation of LOHCs often require harsh reaction conditions.
Fangcheng Qiu   +7 more
doaj   +1 more source

C2H2 semi-hydrogenation on the PdxMy cluster/graphdiyne catalysts: Effects of cluster composition and size on the activity and selectivity

open access: yesGreen Energy & Environment, 2022
C2H2 semi-hydrogenation has been widely applied in industry to eliminate trace C2H2 from C2H4 feed. C2H2 semi-hydrogenation to C2H4 on a series of the newly designed catalysts, graphdiyne (GDY) as a new carbon allotrope supported different sizes of PdxMy
Ying Wang   +5 more
doaj   +1 more source

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