Results 41 to 50 of about 487,283 (249)

Application of Sonotriboluminescence to Determine Arene Molecules in Hydrocarbons

open access: yesMolecules, 2023
The sonotriboluminescence of suspensions of terbium(III) and europium(III) sulfates in decane without and in the presence of benzene, toluene and p-xylene was studied.
Adis A. Tukhbatullin   +6 more
doaj   +1 more source

Photoredox Catalysis in Organic Chemistry

open access: yesJournal of Organic Chemistry, 2016
In recent years, photoredox catalysis has come to the forefront in organic chemistry as a powerful strategy for the activation of small molecules. In a general sense, these approaches rely on the ability of metal complexes and organic dyes to convert ...
M. H. Shaw, Jack Twilton, D. MacMillan
semanticscholar   +1 more source

The 2020 plasma catalysis roadmap

open access: yesJournal of Physics D: Applied Physics, 2020
Plasma catalysis is gaining increasing interest for various gas conversion applications, such as CO2 conversion into value-added chemicals and fuels, CH4 activation into hydrogen, higher hydrocarbons or oxygenates, and NH3 synthesis.
A. Bogaerts   +17 more
semanticscholar   +1 more source

Simulation of Steam Reforming Tube with Shaped Particles

open access: yesEurasian Chemico-Technological Journal, 2005
Shaped catalysts are widely used in steam reforming. A comprehensive mathematical model able to predict and compare performance of different shaped catalysts is developed.
A. P. Kagyrmanova   +4 more
doaj   +1 more source

Highly selective hydrogenation of arenes using nanostructured ruthenium catalysts modified with a carbon–nitrogen matrix

open access: yesNature Communications, 2016
The selective reduction of arenes is important in organic synthesis and also valorization of biomass. Here, the authors report the use of ruthenium-based nanoparticles, which display high activity in arene reduction and preferentially hydrogenate ...
Xinjiang Cui   +6 more
doaj   +1 more source

Visible-Light-Active N-Doped TiO2 Photocatalysts: Synthesis from TiOSO4, Characterization, and Enhancement of Stability Via Surface Modification

open access: yesNanomaterials, 2022
This paper describes the chemical engineering aspects for the preparation of highly active and stable nanocomposite photocatalysts based on N-doped TiO2.
Nikita Kovalevskiy   +8 more
doaj   +1 more source

Deactivation and Regeneration of Mo/ZSM-5 Catalysts for Methane Dehydroaromatization

open access: yesEurasian Chemico-Technological Journal, 2010
The methane dehydroaromatization (DHA) was studied over a series of impregnated Mo/ZSM-5 catalysts with different molybdenum contents (1-10 wt.%). It was shown that total methane conversion was decreased by 30% during 12 h of DHA reaction.
E. V. Matus   +7 more
doaj   +1 more source

Comparative Study of Pd-Mayenite Catalysts Prepared via Aerogel Approaches

open access: yesGels, 2022
Pd-containing catalysts based on highly dispersed aerogel-derived mayenite were prepared via two approaches. The Pd@C12A7 sample was obtained through the addition of Pd nitrate solution to a fresh Ca(OH)2-Al(OH)3 gel.
Ekaterina V. Ilyina   +6 more
doaj   +1 more source

Using nature’s blueprint to expand catalysis with Earth-abundant metals

open access: yesScience, 2020
Making chemistry less precious Much of modern chemistry relies on catalysis by precious metals such as platinum, palladium, and rhodium. By contrast, more abundant metals such as iron and copper suffice in biochemistry. Bullock et al.
R. Bullock   +18 more
semanticscholar   +1 more source

Influence of feedstock composition on the pressure drop buildup in gas oil hydrotreater

open access: yesChimica Techno Acta
In this work two samples of solid particulates obtained from the intergranular space of the guard beds catalyst of industrial gas oil hydrotreating reactors were investigated. The hydrotreating reactors were operated on feedstock of different composition.
Ivan A. Mik   +5 more
doaj   +1 more source

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