Results 21 to 30 of about 78,923 (333)

Electrocatalytic hydrogenation of quinolines with water over a fluorine-modified cobalt catalyst

open access: yesNature Communications, 2022
Selective hydrogenation of quinolines with easy-to-handle hydrogen donors and cost-effective catalysts is desirable. Here electrocatalytic quinoline hydrogenation to 1,2,3,4-tetrahydroquinolines is reported with water over a fluorine-modified cobalt.
Shuoshuo Guo   +6 more
doaj   +1 more source

Comparative Study of Pd–Ni Bimetallic Catalysts Supported on UiO-66 and UiO-66-NH2 in Selective 1,3-Butadiene Hydrogenation

open access: yesNanomaterials, 2022
Selective hydrogenation of 1,3-butadiene (BD) is regarded as the most promising route for removing BD from butene streams. Bimetallic Pd–Ni catalysts with changed Pd/Ni molar ratios and monometallic Pd catalysts were synthesized using two differently ...
Lili Liu   +8 more
doaj   +1 more source

Coordination tailoring of Cu single sites on C3N4 realizes selective CO2 hydrogenation at low temperature

open access: yesNature Communications, 2021
CO2 hydrogenation has attracted intense scientific attention yet suffers from the disadvantage of poor activity and low selectivity. Here, the authors report that Cu single atom catalysts with tailored coordination environments on C3N4 serve as highly ...
Tang Yang   +9 more
doaj   +1 more source

Asymmetric hydrogenation of 1,1-diarylethylenes and benzophenones through a relay strategy

open access: yesNature Communications, 2023
Homogenous transition-metal catalysts bearing a chiral ligand are widely used for asymmetric hydrogenation of unsaturated compounds such as olefins and ketones, providing efficient concise access to products with chiral carbon centers.
Ke Li   +3 more
doaj   +1 more source

Noble Metal Nanoparticles Stabilized by Hyper-Cross-Linked Polystyrene as Effective Catalysts in Hydrogenation of Arenes

open access: yesMolecules, 2021
This work is addressing the arenes’ hydrogenation—the processes of high importance for petrochemical, chemical and pharmaceutical industries. Noble metal (Pd, Pt, Ru) nanoparticles (NPs) stabilized in hyper-cross-linked polystyrene (HPS) were shown to be
Elena S. Bakhvalova   +7 more
doaj   +1 more source

Selective Hydrogenation of 1-Hexyne Using Pd-Cu and Pd-W Supported on Alumina Catalysts

open access: yesChemical Engineering Transactions, 2013
Vinyl acetylene and 1-butyne are by products in mixed C4 separation processes and they must be eliminated due to their high flammability. However, C4 acetylene can be upgraded to higher value hydrocarbons such as 1,3-butadiene and 1-butene by using ...
P. Insorn   +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

MIL‐100(Fe) Supported Pt−Co Nanoparticles as Active and Selective Heterogeneous Catalysts for Hydrogenation of 1,3‐Butadiene

open access: yesChemistryOpen, 2022
Superior catalytic performance for selective 1,3‐butadiene (1,3‐BD) hydrogenation can usually be achieved with supported bimetallic catalysts. In this work, Pt−Co nanoparticles and Pt nanoparticles supported on metal–organic framework MIL‐100(Fe ...
Prof. Lili Liu   +6 more
doaj   +1 more source

Selective Hydrogenation of the Carbonyls in Furfural and 5-Hydroxymethylfurfural Catalyzed by PtNi Alloy Supported on SBA-15 in Aqueous Solution Under Mild Conditions

open access: yesFrontiers in Chemistry, 2021
Valuable furfuryl alcohol (FFA) and 2,5-dihydroxymethylfuran (DHMF) could be produced by selective hydrogenation of biomass-derived furfural (FF) and 5-hydroxymethylfurfural (HMF) with high atom economy. In this study, SBA-15 (a kind of mesoporous silica
Ge Gao   +6 more
doaj   +1 more source

Titania supported synergistic palladium single atoms and nanoparticles for room temperature ketone and aldehydes hydrogenation

open access: yesNature Communications, 2020
Highly efficient catalysts are demanded to realize selective hydrogenation of ketone/aldehydes to alcohols under mild conditions. Here, the authors report a TiO2 supported Pd single-atom/nanoparticles synergistic catalyst with outstanding hydrogenation ...
Long Kuai   +9 more
doaj   +1 more source

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