Halloysite ‐ Poly (ionic liquid) Nanocomposite as an Efficient Catalyst Support: Study of the Effects of Ionic Liquid Nature and Content on the Catalytic Activity

2019 ◽  
Vol 4 (12) ◽  
pp. 3369-3375 ◽  
Author(s):  
Samahe Sadjadi ◽  
Mina Tavakolian
Keyword(s):  
Ionic Liquid ◽  
Catalytic Activity ◽  
Catalyst Support ◽  
Efficient Catalyst ◽  
Poly Ionic Liquid

Poly(ionic liquid)s as efficient catalyst in transformation of CO2 to cyclic carbonate

2014 ◽  
Vol 392 ◽  
pp. 83-88 ◽  
Author(s):  
Marisol Fernández Rojas ◽  
Franciele Longaray Bernard ◽  
Aline Aquino ◽  
Jessica Borges ◽  
Felipe Dalla Vecchia ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Cyclic Carbonate ◽  
Efficient Catalyst ◽  
Poly Ionic Liquid

Silica Gel Supported Dual Acidic Ionic Liquid as a Recyclable and Efficient Catalyst for Esterification and Acetalization Reactions

2011 ◽  
Vol 233-235 ◽  
pp. 1336-1339 ◽  
Author(s):  
Qiang Zhang ◽  
Hong Su ◽  
Jun Luo
Keyword(s):  
Ionic Liquid ◽  
Catalytic Activity ◽  
Silica Gel ◽  
Covalent Bond ◽  
High Catalytic Activity ◽  
The Novel ◽  
Hydrogen Sulfate ◽  
Efficient Catalyst ◽  
Acidic Ionic Liquid

A supported dual acidic ionic liquid was prepared via anchoring 3-sulfobutyl-1-(3-propyltriethoxysilane) imidazolium hydrogen sulfate onto common silica gel by covalent bond. The novel immobilized acidic ionic liquid illustrated high catalytic activity in esterification and acetalization reactions. The products could be separated by simple decantation and the recovered catalyst could be recycled without remarkable loss of catalytic activity even after eight runs for esterification and six runs for acetalization.

scholarly journals Pd On Thermo-Responsive Composite of Silica-Coated Carbon Nanotube And 1-Vinyl-3-Butylimidazolium-Based Ionic Liquid Copolymers As An Efficient Catalyst For Hydrogenation of Nitro Compounds

2021 ◽  
Author(s):  
Samahe Sadjadi ◽  
Neda Abedian-Dehaghani ◽  
Majid M. Heravi
Keyword(s):  
Ionic Liquid ◽  
Catalytic Activity ◽  
Aqueous Media ◽  
Nitro Compounds ◽  
Solution Temperature ◽  
High Catalytic Activity ◽  
Impregnation Method ◽  
Efficient Catalyst ◽  
Wet Impregnation ◽  
Coated Carbon

Abstract In this work, an ionic liquid-containing thermo-responsive heterogeneous catalyst with utility for promoting hydrogenation of nitro-compounds in aqueous media is developed. To prepare the catalyst, silica-coated carbon nanotubes were synthesized and vinyl-functionalized. The resulted compound was then polymerized with 1-viny-3-butylimidazolium bromide and N-isopropylacrylamide. The obtained ionic liquid-containing thermo-responsive composite was palladated via wet-impregnation method to give the final catalyst. Study of the performance of the catalyst confirmed high catalytic activity of the catalyst at temperature above the lower critical solution temperature. Furthermore, the catalyst was highly recyclable and showed negligible Pd leaching upon recycling. Broad substrate scope and selectivity of the catalyst towards reduction of nitro functionality were also confirmed. Furthermore, hot filtration test implied the heterogeneous nature of the catalysis. The comparison of the activity of Pd/CNT-P with some control catalysts approved the importance of hybridization of P and CNT and the presence of ionic liquid for the catalytic activity.

Poly(ionic liquid)–zinc polyoxometalate composite as a binder-free cathode for high-performance lithium–sulfur batteries

2019 ◽  
Vol 7 (7) ◽  
pp. 3018-3023 ◽  
Author(s):  
Vikram Singh ◽  
Anil Kumar Padhan ◽  
Subhasis Das Adhikary ◽  
Aarti Tiwari ◽  
Debaprasad Mandal ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
High Performance ◽  
Capacity Retention ◽  
Efficient Catalyst ◽  
Ionic Polymer ◽  
Lithium Sulfur Batteries ◽  
Binder Free ◽  
High Utilization ◽  
Poly Ionic Liquid ◽  
Lithium Sulfur

A polyoxometalate–ionic polymer composite was utilized as highly stable and efficient catalyst for high performance Li–S battery cathode with high utilization of sulfur and capacity retention.

Efficient CO2 fixation under ambient pressure using poly(ionic liquid)-based heterogeneous catalysts

2019 ◽  
Vol 3 (4) ◽  
pp. 935-941 ◽  
Author(s):  
Tanmoy Biswas ◽  
Venkataramanan Mahalingam
Keyword(s):  
Ionic Liquid ◽  
Heterogeneous Catalysts ◽  
Co2 Fixation ◽  
Ambient Pressure ◽  
Cyclic Carbonate ◽  
Efficient Catalyst ◽  
Poly Ionic Liquid

An ionic liquid-triazine and KI combination was found to be an efficient catalyst for epoxide to cyclic carbonate conversion under CO2 filled balloon conditions.

VxOySupported on Hydrophobic Poly(Ionic Liquid)s as an Efficient Catalyst for Direct Hydroxylation of Benzene to Phenol

ChemCatChem ◽  
2015 ◽  
Vol 7 (21) ◽  
pp. 3526-3532 ◽  
Author(s):  
Hongling Han ◽  
Tao Jiang ◽  
Tianbin Wu ◽  
Dexin Yang ◽  
Buxing Han
Keyword(s):  
Ionic Liquid ◽  
Efficient Catalyst ◽  
Hydroxylation Of Benzene ◽  
Poly Ionic Liquid ◽  
Direct Hydroxylation

Thermally reversible solidification of novel ionic liquid [im]HSO4 by self-nucleated rapid crystallization: investigations of ionic conductivity, thermal properties, and catalytic activity

RSC Advances ◽  
2016 ◽  
Vol 6 (110) ◽  
pp. 108896-108907 ◽  
Author(s):  
Michał Bielejewski ◽  
Mahdi Ghorbani ◽  
Mohammad Ali Zolfigol ◽  
Jadwiga Tritt-Goc ◽  
Soheila Noura ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Catalytic Activity ◽  
Thermal Properties ◽  
Solid State ◽  
Ionic Conductivity ◽  
Chemical Processes ◽  
Efficient Catalyst ◽  
Solid State Electrolyte ◽  
Rapid Crystallization ◽  
Acid Catalyzed

A new, multifunctional [im]HSO4 ionic liquid: a thermally reversible solid-state electrolyte and an efficient catalyst for acid-catalyzed chemical processes.

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