Results 1 to 10 of about 12,723 (118)

Shear‐Induced Emergence of Aromatic Superlow‐Friction Interfaces in Amorphous Carbon: Triggering Chemical Impurities and Atomic‐Scale Mechanisms [PDF]

open access: yesAdvanced Science
Incommensurate graphitic interfaces represent an archetypical tribological system to achieve superlow friction. They are currently realized by molecular deposition or lubrication‐triggered, in situ formation of graphitic nanolayers.
Takuya Kuwahara   +4 more
doaj   +2 more sources

Molecular Iodine—An Expedient Reagent for Oxidative Aromatization Reactions of α,β-Unsaturated Cyclic Compounds

open access: yesMolecules, 2009
Prompted by the scant attention paid by published literature reviews to the applications of molecular iodine in oxidative aromatization reactions, we decided to review methods developed to-date involving iodine as an oxidant to promote aromatization of α,
Malose Jack Mphahlele
exaly   +3 more sources

Investigation of Catalytic Activity of Pillared-layer Ni (II) Metal-Organic Framework Derived NiO Nanoparticles for Aromatization of Hantzsch 1,4-Dihydropyridines [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2020
The pillared-layer metal-organic framework of Ni2(BTEC)(bipy)3.3DMF.2H2O  (BTEC = 1,2,4,5-benzenetetracarboxylate; bipy = 4,4́-bipydine; DMF =N,Ń-dimethylformamide) was prepared, characterized and used as a precursor for preparation of NiO nanoparticles.
Zeinab Asgharpour, Faezeh Farzaneh
doaj   +1 more source

Simulation and Mathematical Representation of N-Octane Aromatization on Ge-Re-Pt/Al2O3, Cs-Pt/ Al2O3,Re-Pt/ Al2O3 Catalysts [PDF]

open access: yesEngineering and Technology Journal, 2014
In the present study mathematical representation was used to predict the reaction kinetics of the n-octane aromatization which tested with three types of catalysts by adding (Ge, Cs, and Re ) in order to improves the catalytic properties (enhanced the ...
Ramzy S. Hamied
doaj   +1 more source

Production of High-Octane Number Gasoline from Basra Low Octane-Number Gas Condensate and Ethanol over Modified Zn/ZSM5 Zeolite Catalyst

open access: yesBulletin of Chemical Reaction Engineering & Catalysis, 2023
Catalytic transformation of a low-octane number stable gas condensate to high-octane number gasoline (RON: research octane number) is an economically and strategically vital process.
Mohammed Abdulrazzaq Salim   +1 more
doaj   +1 more source

A Catalytic, Oxidative Synthesis of Olivetol, Methyl Olivetolate and Orthogonally Protected Methyl Ether Derivatives

open access: yesSynOpen, 2021
Olivetol, methyl olivetolate and a series of orthogonally protected methyl ether derivatives were synthesized from commonly available precursors using an atom-economical, catalytic oxidative aromatization process.
David Hurem   +4 more
doaj   +1 more source

A Comparative Study of Aromatization Catalysts: The Advantage of Hybrid Oxy/Carbides and Platinum-Catalysts Based on Carbon Gels

open access: yesC, 2021
This manuscript is focused on the relationship between sol-gel synthesis processes and the development of new active phases with fitted morphology, porosity and surface chemistry.
Luisa M. Pastrana-Martínez   +2 more
doaj   +1 more source

Synthesis of Heteroaromatic Compounds by Oxidative Aromatization Using an Activated Carbon/Molecular Oxygen System

open access: yesMolecules, 2009
A variety of heteroaromatic compounds, such as substituted pyridines, pyrazoles, indoles, 2-substituted imidazoles, 2-substituted imidazoles, 2-arylbenzazoles and pyrimidin-2(1H)-ones are synthesized by oxidative aromatization using the activated carbon ...
Masahiko Hayashi, Yuka Kawashita
doaj   +1 more source

STUDY OF FACTORS AFFECTING DEVELOPMENT OF FOOD AROMATIZATION

open access: yesHarčova Nauka ì Tehnologìâ, 2017
The specific understanding of food philosophy according to the facts of development of cooking technologies and growth rate of food range is given. As it has been proven by historical stages of production of flavorings, aroma is one of the important ...
Н.Ye. Dubova   +3 more
doaj   +1 more source

Screening of the Honey Aroma as a Potential Essence for the Aromachology

open access: yesApplied Sciences, 2021
The aim of the study was to determine the aroma profiles of four kinds of Slovak honey (sunflower, honeydew, acacia, and linden) by a qualitative and quantitative screening of their volatile compounds and by gas chromatography for the potential use in ...
Jana Štefániková   +4 more
doaj   +1 more source

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