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Title: Influence of the Anions on the Interaction Energy between Water and Ionic Liquids

Abstract

Abstract It is essential to understand the interaction energy between water and ionic liquids (ILs) in search of ILs for dehumidification applications. In this paper, the intermolecular interaction energy between water and 1‐ethyl‐3‐methylimidazolium ([EMIM])‐based ILs was investigated. The vapor‐liquid equilibrium data were first measured for solutions of [EMIM][BF 4 ], [EMIM][N(CN) 2 ], [EMIM][CF 3 SO 3 ], and [EMIM][CH 3 SO 3 ] with water molar fractions of 8–95 % at temperatures of 303–343 K. The IL‐IL and water‐IL intermolecular interaction energies were determined by using the correlated non‐random two‐liquid model. The results revealed that fluorine atoms in anions reduce the attraction energy between IL and water, and thus, decrease the water affinity.

Authors:
 [1];  [1];  [1];  [1];  [1]
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  1. Univ. of Maryland, College Park, MD (United States)
Publication Date:
Research Org.:
Univ. of Maryland, College Park, MD (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
1976295
Alternate Identifier(s):
OSTI ID: 1841441
Grant/Contract Number:  
EE0008672; DEEE0008672
Resource Type:
Accepted Manuscript
Journal Name:
Chemical Engineering and Technology
Additional Journal Information:
Journal Volume: 45; Journal Issue: 2; Journal ID: ISSN 0930-7516
Publisher:
Wiley
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; desiccant; interaction energy; ionic liquid; vapor-liquid equilibrium; water absorption

Citation Formats

Zheng, Chaolun, Shen, Ziyang, Zhou, Jian, Pei, Yong, and Yang, Bao. Influence of the Anions on the Interaction Energy between Water and Ionic Liquids. United States: N. p., 2022. Web. doi:10.1002/ceat.202100438.
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Zheng, Chaolun, Shen, Ziyang, Zhou, Jian, Pei, Yong, & Yang, Bao. Influence of the Anions on the Interaction Energy between Water and Ionic Liquids. United States. https://doi.org/10.1002/ceat.202100438
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Zheng, Chaolun, Shen, Ziyang, Zhou, Jian, Pei, Yong, and Yang, Bao. Wed . "Influence of the Anions on the Interaction Energy between Water and Ionic Liquids". United States. https://doi.org/10.1002/ceat.202100438. https://www.osti.gov/servlets/purl/1976295.
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@article{osti_1976295,
title = {Influence of the Anions on the Interaction Energy between Water and Ionic Liquids},
author = {Zheng, Chaolun and Shen, Ziyang and Zhou, Jian and Pei, Yong and Yang, Bao},
abstractNote = {Abstract It is essential to understand the interaction energy between water and ionic liquids (ILs) in search of ILs for dehumidification applications. In this paper, the intermolecular interaction energy between water and 1‐ethyl‐3‐methylimidazolium ([EMIM])‐based ILs was investigated. The vapor‐liquid equilibrium data were first measured for solutions of [EMIM][BF 4 ], [EMIM][N(CN) 2 ], [EMIM][CF 3 SO 3 ], and [EMIM][CH 3 SO 3 ] with water molar fractions of 8–95 % at temperatures of 303–343 K. The IL‐IL and water‐IL intermolecular interaction energies were determined by using the correlated non‐random two‐liquid model. The results revealed that fluorine atoms in anions reduce the attraction energy between IL and water, and thus, decrease the water affinity.},
doi = {10.1002/ceat.202100438},
journal = {Chemical Engineering and Technology},
number = 2,
volume = 45,
place = {United States},
year = {Wed Jan 05 00:00:00 EST 2022},
month = {Wed Jan 05 00:00:00 EST 2022}
}
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https://doi.org/10.1002/ceat.202100438
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