Results 21 to 30 of about 278,674 (249)

X-ray photoelectron spectroscopy of pyridinium-based tonic liquids: comparison to imidazolium- and pyrrolidinium-based analogues [PDF]

open access: yes, 2015
We investigate eight 1‐alkylpyridinium‐based ionic liquids of the form [CnPy][A] by using X‐ray photoelectron spectroscopy (XPS). The electronic environment of each element of the ionic liquids is analyzed.
Beamson   +46 more
core   +1 more source

Quantitative and qualitative analyses of grafted okra for corrosion inhibition of mild steel in acidic medium

open access: yesFrontiers in Chemistry, 2023
Introduction: Natural plant polymers demonstrate effective corrosion inhibition abilities, because of their numerous binding sites and excellent adsorption abilities.Methodology: In this study, the Box-Behnken method, gravimetric and electrochemical ...
Aliyu Adebayo Sulaimon   +7 more
doaj   +1 more source

Synthesis of novel room temperature chiral ionic liquids. application as reaction media for the heck arylation of aza-endocyclic acrylates. [PDF]

open access: yes, 2010
New achiral and chiral RTILs were prepared using novel and/or optimized synthetic routes. These new series of imidazolinium, imidazolium, pyridinium and nicotine-derived ionic liquids were fully characterized including differential scanning calorimetry ...
Correia, Carlos R. D.   +4 more
core   +4 more sources

Unexpected acceleration of Ultrasonic-Assisted iodide dosimetry in the catalytic presence of ionic liquids

open access: yesUltrasonics Sonochemistry, 2021
This study investigates the potential of using small amounts of ionic liquids (IL) to enhance ultrasound-assisted extraction of lipids content from green microalgae.
Sooridarsan Krishnan   +6 more
doaj   +1 more source

Phase behaviour and dynamics in primitive models of molecular ionic liquids [PDF]

open access: yes, 2011
The phase behaviour and dynamics of molecular ionic liquids are studied using primitive models and extensive computer simulations. The models account for size disparity between cation and anion, charge location on the cation, and cation-shape anisotropy,
Camp, P. J., Ganzenmüller, G. C.
core   +4 more sources

The solvation and redox behavior of mixed ligand copper(II) complexes of acetylacetonate and aromatic diimines in ionic liquids [PDF]

open access: yes, 2014
The behavior of two cationic copper complexes of acetylacetonate and 2,2'-bipyridine or 1,10-phenanthroline, [Cu(acac)(bipy)]Cl (1) and [Cu(acac)(phen)]Cl (2), in organic solvents and ionic liquids, was studied by spectroscopic and electrochemical ...
Alegria, Elisabete C.B.A.   +4 more
core   +1 more source

Direct methane conversion to methanol by ionic liquid-dissolved platinum catalysts [PDF]

open access: yes, 2006
Ternary systems of inorganic Pt salts and oxides, ionic liquids and concentrated sulfuric acid are effective at catalyzing the direct, selective oxidation of methane to methanol and appear to be more water tolerant than the Catalytica ...
Cheng, Jihong   +3 more
core   +2 more sources

Sub/supercritical carbon dioxide induced phase switching for the reaction and separation in ILs/methanol

open access: yesGreen Energy & Environment, 2016
Separation of products from ionic liquid (IL) solvents is one of the main challenges that hinder their utilizations. In this study, the production of γ-valerolactone (GVL) by selective hydrogenation of α-angelica lactone (AL) and separation of the ...
Jiayu Xin   +5 more
doaj   +1 more source

Studies on the Prediction and Extraction of Methanol and Dimethyl Carbonate by Hydroxyl Ammonium Ionic Liquids

open access: yesMolecules, 2023
The separation of dimethyl carbonate (DMC) and methanol is of great significance in industry. In this study, ionic liquids (ILs) were employed as extractants for the efficient separation of methanol from DMC.
Xiaokang Wang   +7 more
doaj   +1 more source

On the thickness of the double layer in ionic liquids

open access: yes, 2017
In this study, we examined the thickness of the electrical double layer (EDL) in ionic liquids using density functional theory (DFT) calculations and molecular dynamics (MD) simulations.
Cordeiro, M. Natália D. S.   +8 more
core   +1 more source

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