Results 31 to 40 of about 78,923 (333)
Selective Hydrogen Adsorption in Graphene Rotated Bilayers [PDF]
The Journal of Physical Chemistry B, 2017 The absorption energy of atomic hydrogen at rotated graphene bilayers is studied using ab initio methods based on the density functional theory including van der Waals interactions. We find that, due to the surface corrugation induced by the underneath rotated layer and the perturbation of the electronic density of states near the Fermi energy, the ...
Ivan Brihuega, Felix Yndurain
openaire +3 more sources
Catalysts for selective hydrogenation of acetylene: A review
Materials Today Catalysis, 2023 Ethylene is a crucial industrial feedstock in the petrochemical sector. However, the presence of a small amount of acetylene impurities in ethylene products will directly affect the next application of ethylene.
Kefeng Xie +5 more
doaj +1 more source
Comparison of C═C bond hydrogenation in C-4 unsaturated nitriles over Pt/alumina [PDF]
, 2016 The hydrogenation of allyl cyanide (but-1-ene-4-nitrile, AC), trans- and cis-crotononitrile (E- and Z-but-2-ene nitrile, TCN and CCN), and methacrylonitrile (2-cyano-1-propene, MCN) were studied, both singly and competitively, over a Pt/alumina catalyst ...
Andrew Monaghan +3 more
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Polymorph selection towards photocatalytic gaseous CO2 hydrogenation [PDF]
Nature Communications, 2019 AbstractTitanium dioxide is the only known material that can enable gas-phase CO2 photocatalysis in its anatase and rutile polymorphic forms. Materials engineering of polymorphism provides a useful strategy for optimizing the performance metrics of a photocatalyst.
Tingjiang Yan +9 more
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Selective hydrogenation of 1,5,9-cyclododecatriene in up- and down-flow fixed-bed reactors: experimental observations and modeling [PDF]
, 2001 The performance of trickle and flooded-bed reactors has been investigated and compared for an exothermic multi-step catalytic reaction. Selective hydrogenation of cyclododecatriene over Pd/Al2O3 has been studied in both up- and down-flow modes of ...
Chaudhari, Raghunath Vitthal +4 more
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Scientific Reports, 2021 The TiO2 supported Ru-based catalysts were prepared with 1.5 wt% Ru and 0–0.8 wt% Co on various TiO2 (anatase, rutile, P-25, and sol–gel TiO2) and studied in the liquid-phase selective hydrogenation of furfural to furfuryl alcohol (FA) under mild ...
Weerachon Tolek +4 more
doaj +1 more source
A Simple Nickel Catalyst Enabling an E‐Selective Alkyne Semihydrogenation [PDF]
, 2019 Stereoselective alkyne semihydrogenations are attractive approaches to alkenes, which are key building blocks for synthesis. With regards to the most atom economic reducing agent dihydrogen (H 2 ), only few catalysts for the challenging E ‐selective ...
Kaewmee, Benyapa +3 more
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Chemical Engineering Transactions, 2017 Nowadays the development of effective catalytic systems of selective hydrogenation of levulinic acid (LA) to gamma-valerolactone (GVL) is of high importance.
L.Z. Nikoshvili +6 more
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A Promising Strategy for Solvent-Regulated Selective Hydrogenation of 5-Hydroxymethylfurfural over Porous Carbon-Supported Ni-ZnO Nanoparticles. [PDF]
Nanomicro LettHighlights A porous carbon-supported Ni-ZnO nanoparticles catalyst (Ni-ZnO/AC) was synthesized by low-temperature coprecipitation, demonstrating exceptional catalytic activity and stability. Selective hydrogenation of 5-hydroxymethylfurfural (HMF) to 2,5-
Huang R +6 more
europepmc +2 more sources
Molecules, 2023 The selective hydrogenation of nitroarenes to N-arylhydroxylamines is an important synthetic process in the chemical industry. It is commonly accomplished by using heterogeneous catalytic systems that contain inhibitors, such as DMSO.
Jianli Chen +7 more
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