Hongyue Zhu, Ying Li, Hongrui Ren, 等. Molecular dynamics simulation of supercritical CO2 microemulsion with ionic liquid domains: Structures and properties[J]. 中国化学工程学报(英文版), 2019,27(11):2653-2658. DOI: 10.1016/j.cjche.2019.04.005.
microemulsion with ionic liquid domains: Structures and properties[J]. 中国化学工程学报, 2019, 27(11): 2653-2658.
Hongyue Zhu, Ying Li, Hongrui Ren, 等. Molecular dynamics simulation of supercritical CO2 microemulsion with ionic liquid domains: Structures and properties[J]. 中国化学工程学报(英文版), 2019,27(11):2653-2658. DOI: 10.1016/j.cjche.2019.04.005.DOI:
microemulsion with ionic liquid domains: Structures and properties[J]. 中国化学工程学报, 2019, 27(11): 2653-2658.DOI: 10.1016/j.cjche.2019.04.005.
Molecular dynamics simulation of supercritical CO2 microemulsion with ionic liquid domains: Structures and properties
摘要
Abstract
Supercritical carbon dioxide microemulsions are great medium to combine two immiscible substances through forming nanoscale polar cores in nonpolar continuous phase with the help of proper surfactants. The properties of microemulsions could be significantly affected by their constituents and structures. In this work
molecular dynamics simulation was implemented to study supercritical carbon dioxide microemulsions containing ionic liquid[bmim
]
[PF
6
]
and water by adding surfactant Ls-36. Results showed that the above components could form spherical aggregates in CO
2
bulk phase with[bmim
]
[PF
6
]
and some water as the inner core
surfactant headgroups and water as the intermediate shell
and surfactant tails as the outer shell. The microstructure information about the outer shell was further investigated by defining an angle between the surfactant tail and the normal direction of the aggregate outer surface
which ranged from 78° to 125°. The influence of the ionic liquid content on the size and structure of microemulsions was explored and the best molar ratio between the ionic liquid and surfactant was around 1.25 for getti
ng maximum water solubility.
关键词
Keywords
references
The trial reading is over, you can activate your VIP account to continue reading.