scholarly journals Insight into the dispersion behavior of 1-butyl-3-methylimiazolium chloride confined in nanoscale pores of carbon materials

RSC Advances ◽  
2018 ◽  
Vol 8 (43) ◽  
pp. 24094-24100 ◽  
Author(s):  
Shuxia Di ◽  
Yiqi Xu ◽  
Qunfeng Zhang ◽  
Xiaolong Xu ◽  
Yuanyuan Zhai ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Liquid Phase ◽  
Carbon Materials ◽  
Supported Ionic Liquid ◽  
Dispersion Behavior ◽  
Insight Into

It is important to understand the behaviour of ionic liquids (ILs) in nanoscale pores, as application of supported ionic liquid phase (SILP) materials has attracted much attention.

scholarly journals Unraveling Toluene Conversion during the Liquid Phase Hydrogenation of Cyclohexene (in Toluene) with Rh Hybrid Catalysts

Catalysts ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 973 ◽  
Author(s):  
Mónica Rufete-Beneite ◽  
M. Carmen Román-Martínez
Keyword(s):  
Ionic Liquid ◽  
Liquid Phase ◽  
Carbon Materials ◽  
Carbon Support ◽  
Toluene Hydrogenation ◽  
Hydrogen Consumption ◽  
Supported Ionic Liquid ◽  
Cyclohexene Hydrogenation ◽  
Liquid Phase Hydrogenation ◽  
Toluene Conversion

Monitoring hydrogen consumption has allowed studying the progress of the liquid phase hydrogenation of cyclohexene in toluene with Rh SILP (supported ionic liquid phase) catalysts prepared by the immobilization of the [{RhCl(cod)}2] complex on different carbon materials. An excess of hydrogen consumption with respect to the required amount for cyclohexene hydrogenation was registered and related with the solvent (toluene) hydrogenation. The study carried out led to unraveling the extent of toluene hydrogenation and to determining if the rate of this reaction is affected by the properties of the carbon material used as support. The results revealed that the Rh SILP catalysts we prepared showed acceptable toluene conversion, with 100% selectivity to the total hydrogenated product, and that the effect of the carbon support is the same as for cyclohexene hydrogenation.

Synthesis and characterization of a supported ionic-liquid phase catalyst with a dual-mesoporous structure derived from poly(ionic liquids) and P123

2019 ◽  
Vol 43 (7) ◽  
pp. 2899-2907
Author(s):  
Beibei Wang ◽  
Xiaoli Sheng ◽  
Yuming Zhou ◽  
Huaying Gao ◽  
Zhiying Zhu ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Liquid Phase ◽  
Heterogeneous Catalyst ◽  
High Efficiency ◽  
Mesoporous Structure ◽  
Synthesis And Characterization ◽  
Excellent Performance ◽  
Supported Ionic Liquid

A novel heterogeneous catalyst with high efficiency and recovery shows excellent performance in the alkylation of o-xylene and styrene.

Ionic Liquids in Refinery Desulfurization: Comparison between Biphasic and Supported Ionic Liquid Phase Suspension Processes

ChemSusChem ◽  
2009 ◽  
Vol 2 (10) ◽  
pp. 969-977 ◽  
Author(s):  
Esther Kuhlmann ◽  
Marco Haumann ◽  
Andreas Jess ◽  
Andreas Seeberger ◽  
Peter Wasserscheid
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Liquid Phase ◽  
Supported Ionic Liquid

CO2 Capture by Novel Supported Ionic Liquid Phase Systems Consisting of Silica Nanoparticles Encapsulating Amine-Functionalized Ionic Liquids

2014 ◽  
Vol 118 (42) ◽  
pp. 24437-24451 ◽  
Author(s):  
George Em. Romanos ◽  
Peter S. Schulz ◽  
Matthias Bahlmann ◽  
Peter Wasserscheid ◽  
Andreas Sapalidis ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Liquid Phase ◽  
Silica Nanoparticles ◽  
Co2 Capture ◽  
Supported Ionic Liquid ◽  
Amine Functionalized ◽  
Phase Systems

Dynamics of Ion Locking in Doubly Polymerized Ionic Liquids

2020 ◽  
Author(s):  
Swati Arora ◽  
Julisa Rozon ◽  
Jennifer Laaser
Keyword(s):  
Dielectric Constant ◽  
Ionic Liquid ◽  
Ionic Liquids ◽  
Ion Pairs ◽  
Polymer Chains ◽  
Ion Motion ◽  
Charged Species ◽  
Broadband Dielectric Spectroscopy ◽  
Covalently Linked ◽  
Insight Into

<div>In this work, we investigate the dynamics of ion motion in “doubly-polymerized” ionic liquids (DPILs) in which both charged species of an ionic liquid are covalently linked to the same polymer chains. Broadband dielectric spectroscopy is used to characterize these materials over a broad frequency and temperature range, and their behavior is compared to that of conventional “singly-polymerized” ionic liquids (SPILs) in which only one of the charged species is attached to the polymer chains. Polymerization of the DPIL decreases the bulk ionic conductivity by four orders of magnitude relative to both SPILs. The timescales for local ionic rearrangement are similarly found to be approximately four orders of magnitude slower in the DPILs than in the SPILs, and the DPILs also have a lower static dielectric constant. These results suggest that copolymerization of the ionic monomers affects ion motion on both the bulk and the local scales, with ion pairs serving to form strong physical crosslinks between the polymer chains. This study provides quantitative insight into the energetics and timescales of ion motion that drive the phenomenon of “ion locking” currently under investigation for new classes of organic electronics.</div>

scholarly journals Investigating the Proton and Ion Transfer Properties of Supported Ionic Liquid Membranes Prepared for Bioelectrochemical Applications Using Hydrophobic Imidazolium-Type Ionic Liquids

Membranes ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 359
Author(s):  
László Koók ◽  
Piroska Lajtai-Szabó ◽  
Péter Bakonyi ◽  
Katalin Bélafi-Bakó ◽  
Nándor Nemestóthy
Keyword(s):  
Mass Transfer ◽  
Ionic Liquid ◽  
Ionic Liquids ◽  
Microbial Fuel Cells ◽  
Transport Numbers ◽  
Liquid Membranes ◽  
Ion Transfer ◽  
Supported Ionic Liquid ◽  
Supported Ionic Liquid Membranes ◽  
Transfer Properties

Hydrophobic ionic liquids (IL) may offer a special electrolyte in the form of supported ionic liquid membranes (SILM) for microbial fuel cells (MFC) due to their advantageous mass transfer characteristics. In this work, the proton and ion transfer properties of SILMs made with IL containing imidazolium cation and [PF6]− and [NTf2]− anions were studied and compared to Nafion. It resulted that both ILs show better proton mass transfer and diffusion coefficient than Nafion. The data implied the presence of water microclusters permeating through [hmim][PF6]-SILM to assist the proton transfer. This mechanism could not be assumed in the case of [NTf2]− containing IL. Ion transport numbers of K+, Na+, and H+ showed that the IL with [PF6]− anion could be beneficial in terms of reducing ion transfer losses in MFCs. Moreover, the conductivity of [bmim][PF6]-SILM at low electrolyte concentration (such as in MFCs) was comparable to Nafion.

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