scholarly journals Rationalizing the role of the anion in CO2 capture and conversion using imidazolium-based ionic liquid modified mesoporous silica

RSC Advances ◽  
2015 ◽  
Vol 5 (79) ◽  
pp. 64220-64227 ◽  
Author(s):  
A. S. Aquino ◽  
F. L. Bernard ◽  
J. V. Borges ◽  
L. Mafra ◽  
F. Dalla Vecchia ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Mesoporous Silica ◽  
Mesoporous Materials ◽  
Co2 Capture ◽  
Imidazolium Chloride ◽  
Supported Ionic Liquids ◽  
Mcm 41

Covalently supported ionic liquids in mesoporous materials were prepared by grafting 1-methyl-3-(3-trimethoxysylilpropyl)imidazolium chloride in MCM-41.

Probing the microscopic structural organization of neat ionic liquids (ILs) and ionic liquid-based gels through resonance energy transfer (RET) studies

2017 ◽  
Vol 19 (34) ◽  
pp. 23194-23203 ◽  
Author(s):  
Debashis Majhi ◽  
Moloy Sarkar
Keyword(s):  
Ionic Liquid ◽  
Energy Transfer ◽  
Ionic Liquids ◽  
Structural Organization ◽  
Rhodamine 6G ◽  
Resonance Energy Transfer ◽  
Resonance Energy

With the aim to understand the role of the ionic constituents of ionic liquids (ILs) in their structural organization, resonance energy transfer (RET) studies between ionic liquids (donor) and rhodamine 6G (acceptor) have been investigated.

CO2 Capture by Supported Ionic Liquid Phase: Highlighting the Role of the Particle Size

2019 ◽  
Vol 7 (15) ◽  
pp. 13089-13097 ◽  
Author(s):  
Ruben Santiago ◽  
Jesus Lemus ◽  
Daniel Hospital-Benito ◽  
Cristian Moya ◽  
Jorge Bedia ◽  
...  
Keyword(s):  
Particle Size ◽  
Ionic Liquid ◽  
Liquid Phase ◽  
Co2 Capture ◽  
Supported Ionic Liquid

An amino acid ionic liquid-based tough ion gel membrane for CO2 capture

2015 ◽  
Vol 51 (71) ◽  
pp. 13658-13661 ◽  
Author(s):  
Farhad Moghadam ◽  
Eiji Kamio ◽  
Ayumi Yoshizumi ◽  
Hideto Matsuyama
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Amino Acid ◽  
Co2 Capture ◽  
Double Network ◽  
Ion Gel ◽  
Amino Acid Ionic Liquid

A tough and thin double-network gel membrane containing amino acid ionic liquids as a CO2 carrier exhibited superior CO2 permeability and stability under pressurized conditions.

Nanosized Titanium Oxynitride and Molybdenum Oxynitride Particles Assembled in Mesoporous Silica MCM-41

2006 ◽  
Vol 510-511 ◽  
pp. 138-141 ◽  
Author(s):  
Shan Zheng ◽  
Lian Gao
Keyword(s):  
Composite Materials ◽  
Mesoporous Silica ◽  
Mesoporous Materials ◽  
N2 Adsorption ◽  
Xps Spectra ◽  
Desorption Isotherms ◽  
Adsorption Desorption ◽  
Nitridation Temperature ◽  
Mcm 41

Titanium oxynitride and molybdenum oxynitride assembled in the pores of mesoporous materials were achieved by nitriding titania-modified MCM-41 and molybdena-modified MCM-41 at 800°C for 3 hours under flowing NH3 atmosphere. XRD, XPS and N2 adsorption-desorption isotherms were employed to characterize the structure of the composite materials. The results showed that the nanosized TiOxNy and MoOxNy particles were assembled in mesoporous silica MCM-41 with the restrict mesopores. The hexagonal periodicity of the parent MCM-41 materials was maintained upon assembly at the provided nitridation temperature. The exact formation was TiO0.4N0.8 in MCM-TiOxNy, and MoO1.7N0.57 in MCM-MoOxNy, which were calculated from the data in XPS spectra of Ti 2p and Mo 3d.

Role of Cation in Enhancing the Conversion of the Alzheimer’s Peptide into Amyloid Fibrils Using Protic Ionic Liquids

2012 ◽  
Vol 65 (11) ◽  
pp. 1502 ◽  
Author(s):  
Natalie Debeljuh ◽  
Swapna Varghese ◽  
Colin J. Barrow ◽  
Nolene Byrne
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Primary Amine ◽  
Amyloid Fibrils ◽  
Tertiary Amines ◽  
Protic Ionic Liquids ◽  
Protic Ionic Liquid ◽  
The Difference ◽  
The Impact

We report on the impact of changes in the protic ionic liquid (pIL) cation on the fibrilisation kinetics and the conversion of the Aβ 16–22 from monomers to amyloid fibrils. When we compare the use of primary, secondary, and tertiary amines we find that the primary amine results in the greatest conversion into amyloid fibrils. We show that the pIL is directly interacting with the peptide and this likely drives the difference in conversion and kinetics observed.

Understanding the role of hydrogen bonding in Brønsted acidic ionic liquid-catalyzed transesterification: a combined theoretical and experimental investigation

2016 ◽  
Vol 18 (48) ◽  
pp. 32723-32734 ◽  
Author(s):  
Kaixin Li ◽  
Yibo Yan ◽  
Jun Zhao ◽  
Junxi Lei ◽  
Xinli Jia ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Ionic Liquid ◽  
Hydrogen Bonding ◽  
Catalytic Activity ◽  
Ionic Liquids ◽  
Acidic Ionic Liquid ◽  
Brønsted Acidic Ionic Liquid ◽  
Acidic Ionic Liquids ◽  
Hydrogen Bonding Networks

The intra- and inter-hydrogen bonding networks that govern the catalytic activity of Brønsted acidic ionic liquids were identified.

Conversion of glucose into 5-hydroxymethylfurfural catalyzed by chromium(iii) Schiff base complexes and acidic ionic liquids immobilized on mesoporous silica

RSC Advances ◽  
2015 ◽  
Vol 5 (75) ◽  
pp. 60736-60744 ◽  
Author(s):  
Yanfang Wang ◽  
Zhen Gu ◽  
Wentao Liu ◽  
Yuan Yao ◽  
Haijun Wang ◽  
...  
Keyword(s):  
Schiff Base ◽  
Ionic Liquids ◽  
Mesoporous Silica ◽  
Schiff Base Complexes ◽  
Acidic Ionic Liquids ◽  
Mcm 41

A series of novel catalysts were synthesized using immobilized chromium(iii) complexes and ionic liquids on the surface of MCM-41.

The electrical double layer at the ionic liquid/Au and Pt electrode interface

RSC Advances ◽  
2014 ◽  
Vol 4 (55) ◽  
pp. 28914-28921 ◽  
Author(s):  
Cristiana Gomes ◽  
Renata Costa ◽  
Carlos M. Pereira ◽  
A. Fernando Silva
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Double Layer ◽  
Electrode Material ◽  
Layer Structure ◽  
Pt Electrode ◽  
Double Layer Structure ◽  
Pt Electrodes ◽  
Electrode Interface

The role of the electrode material on the interfacial double layer structure of a series of ionic liquids comprising 1-butyl-3-methylimidazolium hexafluorophosphate (C4MIM][PF6]), 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([C4MIM][Tf2N]) and 1-butyl-3-methylimidazolium tetrafluoroborate ([C4MIM][BF4]) was investigated on gold (Au) and platinum (Pt) electrodes.

scholarly journals Dehydration of bioethanol with both pure ionic liquids and an ionic liquid anchored to mesoporous silica: A comparative study

2018 ◽  
Vol 8 (1) ◽  
pp. 113-119 ◽  
Author(s):  
Luz A. Carreño-Díaz
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Atmospheric Pressure ◽  
Raw Materials ◽  
Covalent Bond ◽  
Mass Ratio ◽  
Relative Volatility ◽  
Imidazolium Chloride ◽  
The Matrix ◽  
Mesoporous Sio2

Bioethanol is produced by the fermentation of different raw materials; anhydrous ethanol is used as biofuel. This article reports the study of the dehydration of bioethanol by breaking the azeotrope, using ionic liquids as entrainers. Three ionic liquids (LIs) [EMIM][Cl], [EMIM][OAc], and [BMIM][Cl] were tested as entrainers; the behavior of ternary mixes of bioethanol-water-LI were evaluated through the activity coefficients and the relative volatility of bioethanol at 80°C and atmospheric pressure. In this first study it was concluded that the [EMIM][Cl] was the most effective IL for dehydration purposes: bioethanol (93.45 % v/v) after three cycles of extraction was (99.20 % v/v) when a mass ratio bioethanol-IL of 0.55 was used. Based on the first study, a composite was prepared by anchoring the LI 1-ethyl-(3-trimethoxysilil) propyl imidazolium chloride to mesoporous SiO2. The composite was characterized and it has been confirmed that there is a covalent bond between the IL and the matrix. The material was tested as dehydrating agent; results of these two studies were compared and showed that the pure ionic liquids could be used as entrainers in extractive distillations, breaking water-ethanol azeotrope, also showing the same ionic liquids able to be anchored to matrices as solid composites for dehydration, offering additional advantages such as selectivity, less time consuming, recyclability, and significantly diminishes (84%), the requirement for the amount of the IL.

scholarly journals Advances Achieved by Ionic-Liquid-Based Materials as Alternative Supports and Purification Platforms for Proteins and Enzymes

Nanomaterials ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 2542
Author(s):  
Rui M. F. Bento ◽  
Catarina A. S. Almeida ◽  
Márcia C. Neves ◽  
Ana P. M. Tavares ◽  
Mara G. Freire
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Pharmaceutical Sciences ◽  
Development Phase ◽  
Preparative Liquid Chromatography ◽  
Advantages And Disadvantages ◽  
The Past ◽  
Properties Of Materials ◽  
Supported Ionic Liquids ◽  
Significant Attention

Ionic liquids (ILs) have been applied in several fields in which enzymes and proteins play a noteworthy role, for instance in biorefinery, biotechnology, and pharmaceutical sciences, among others. Despite their use as solvents and co-solvents, their combination with materials for protein- and enzyme-based applications has raised significant attention in the past few years. Among them, significant advances were brought by supported ionic liquids (SILs), in which ILs are introduced to modify the surface and properties of materials, e.g., as ligands when covalently bond or when physiosorbed. SILs have been mainly investigated as alternative supports for enzymes in biocatalysis and as new supports in preparative liquid chromatography for the purification of high-value proteins and enzymes. In this manuscript, we provide an overview on the most relevant advances by using SILs as supports for enzymes and as purification platforms for a variety of proteins and enzymes. The interaction mechanisms occurring between proteins and SILs/ILs are highlighted, allowing the design of efficient processes involving SILs. The work developed is discussed in light of the respective development phase and innovation level of the applied technologies. Advantages and disadvantages are identified, as well as the missing links to pave their use in relevant applications.

Sign in / Sign up

Export Citation Format

Share Document