High-Pressure Study of the Methylsulfate and Tosylate Imidazolium Ionic Liquids

2009 ◽  
Vol 113 (16) ◽  
pp. 5593-5606 ◽  
Author(s):  
Santiago Aparicio ◽  
Rafael Alcalde ◽  
Begoña García ◽  
José M. Leal
Keyword(s):  
High Pressure ◽  
Ionic Liquids ◽  
Imidazolium Ionic Liquids ◽  
High Pressure Study

A High-Pressure Study of the Effects of TiO2 Nanoparticles on the Structural Organization of Ionic Liquids

2011 ◽  
Vol 115 (48) ◽  
pp. 23778-23783 ◽  
Author(s):  
Hai-Chou Chang ◽  
Shu-Chieh Chang ◽  
Tzu-Chieh Hung ◽  
Jyh-Chiang Jiang ◽  
Jer-Lai Kuo ◽  
...  
Keyword(s):  
High Pressure ◽  
Ionic Liquids ◽  
Tio2 Nanoparticles ◽  
Structural Organization ◽  
High Pressure Study

Electrochemical Carbon Dioxide Reduction in Ionic Liquids at High Pressure

2021 ◽  
Author(s):  
Liam M. Welch ◽  
Meera Vijayaraghavan ◽  
Francesca Greenwell ◽  
John Satherley ◽  
Alexander J. Cowan
Keyword(s):  
Carbon Dioxide ◽  
High Pressure ◽  
Ionic Liquids ◽  
Co2 Reduction ◽  
Carbon Dioxide Reduction ◽  
Imidazolium Ionic Liquids

Imidazolium ionic liquids are potentially useful solvents for both carbon dioxide reduction conversion and capture. In particular electrocatalytic CO2 reduction has been shown to occur at low overpotentials using a...

scholarly journals Structural Reorganization of Imidazolium Ionic Liquids Induced by Pressure-Enhanced Ionic Liquid—Polyethylene Oxide Interactions

2021 ◽  
Vol 22 (2) ◽  
pp. 981
Author(s):  
Teng-Hui Wang ◽  
Li-Wen Hsu ◽  
Hai-Chou Chang
Keyword(s):  
High Pressure ◽  
Ionic Liquids ◽  
Polyethylene Oxide ◽  
High Pressures ◽  
Ambient Pressure ◽  
Structural Reorganization ◽  
Imidazolium Ionic Liquids ◽  
Local Structures ◽  
Electronic Switches ◽  
Pressure Phase

Mixtures of polyethylene oxide (PEO, M.W.~900,000) and imidazolium ionic liquids (ILs) are studied using high-pressure Fourier-transform infrared spectroscopy. At ambient pressure, the spectral features in the C–H stretching region reveal that PEO can disturb the local structures of the imidazolium rings of [BMIM]+ and [HMIM]+. The pressure-induced phase transition of pure 1-butyl-3-methylimidazolium bromide ([BMIM]Br) is observed at a pressure of 0.4 GPa. Pressure-enhanced [BMIM]Br-PEO interactions may assist PEO in dividing [BMIM]Br clusters to hinder the aggregation of [BMIM]Br under high pressures. The C–H absorptions of pure 1-hexyl-3-methylimidazolium bromide [HMIM]Br do not show band narrowing under high pressures, as observed for pure [BMIM]Br. The band narrowing of C–H peaks is observed at 1.5 GPa for the [HMIM]Br-PEO mixture containing 80 wt% of [HMIM]Br. The presence of PEO may reorganize [HMIM]Br clusters into a semi-crystalline network under high pressures. The differences in aggregation states for ambient-pressure phase and high-pressure phase may suggest the potential of [HMIM]Br-PEO (M.W.~900,000) for serving as optical or electronic switches.

High Pressure Studies of Quantum Well Emission and Deep Emission in GaInP(ordered)-GaAs Heterostructures

1997 ◽  
Vol 499 ◽  
Author(s):  
S. H. Kwok ◽  
P. Y. Yu ◽  
K. Uchida ◽  
T. Arai
Keyword(s):  
High Pressure ◽  
Quantum Well ◽  
Emission Band ◽  
Excitation Power ◽  
High Excitation ◽  
High Pressure Studies ◽  
Band Alignments ◽  
High Pressure Study

ABSTRACTWe report on a high pressure study of emission from a series of GaInP(ordered)/GaAs heterostructures. A so-called “deep emission” band at 1.46 eV is observed in all our samples. At high excitation power, quantum well emission emerges in only one structure where thin GaP layers are inserted on both sides of the GaAs well. From the pressure dependent emission in this sample we have determined its band alignments. The role of the GaP layers in suppressing the deep emission is elucidated.

Development of a robust soft-SAFT model for protic ionic liquids using new high-pressure density data

2021 ◽  
pp. 113036
Author(s):  
Emanuel A. Crespo ◽  
Liliana P. Silva ◽  
Cristina I.P. Correia ◽  
Mónia A.R. Martins ◽  
Ramesh L. Gardas ◽  
...  
Keyword(s):  
High Pressure ◽  
Ionic Liquids ◽  
Protic Ionic Liquids ◽  
Density Data

scholarly journals Carbon dioxide capture using water-imidazolium ionic liquids-amines ternary systems

2021 ◽  
Vol 105 ◽  
pp. 103210
Author(s):  
Mariusz Zalewski ◽  
Tomasz Krawczyk ◽  
Agnieszka Siewniak ◽  
Aleksander Sobolewski
Keyword(s):  
Carbon Dioxide ◽  
Ionic Liquids ◽  
Carbon Dioxide Capture ◽  
Ternary Systems ◽  
Imidazolium Ionic Liquids

Degradation of imidazolium ionic liquids in a thermally activated persulfate system

2021 ◽  
Vol 412 ◽  
pp. 128624
Author(s):  
Tian-Lin Ren ◽  
Xi-Wen Ma ◽  
Xiao-Qiong Wu ◽  
Li Yuan ◽  
Yang-Li Lai ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Imidazolium Ionic Liquids ◽  
Thermally Activated ◽  
Activated Persulfate
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