Study of CO2 solubility in bicyclic ionic liquids by thermodynamic properties and FT-IR spectroscopic analysis at T=(303.15 and 313.15) K

Ionic liquids (ILs) are alternative substances for post-combustion CO2 captures because of their tunable properties are modified in terms of cation and anion alteration. The basicity and fluorination of either cation or anion of the ILs may increases the CO2 sorption affinity. In this study, four 1,...

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Autores principales:	Venkatramana Losetty, C. Hazarathaiah Yadav, Cecilia Devi Wilfred, Ramesh L. Gardas
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	CO2 solubility Ionic liquid COSMO-RS study FTIR analysis Thermodynamic function Thermodynamics QC310.15-319
Acceso en línea:	https://doaj.org/article/508941a8093842e69242a59028acf7f2
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spelling	oai:doaj.org-article:508941a8093842e69242a59028acf7f22021-11-04T04:45:58ZStudy of CO2 solubility in bicyclic ionic liquids by thermodynamic properties and FT-IR spectroscopic analysis at T=(303.15 and 313.15) K2667-312610.1016/j.ctta.2021.100021https://doaj.org/article/508941a8093842e69242a59028acf7f22021-09-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2667312621000183https://doaj.org/toc/2667-3126Ionic liquids (ILs) are alternative substances for post-combustion CO2 captures because of their tunable properties are modified in terms of cation and anion alteration. The basicity and fluorination of either cation or anion of the ILs may increases the CO2 sorption affinity. In this study, four 1,8-diazabicyclo[5.4.0]undec‑7-ene (DBU) based ILs, namely [DBUAc], [DBUTFA], [DBUMSA] and [DBUTFMSA] were used to study the CO2 solubility at various pressures and temperatures. From the pressure-concentration-temperature data, Henry's constant (KH) was predicted to calculate the sorption efficiency of studied ILs. The sign and magnitude of thermodynamic properties such as Henry's constant (KH), Gibbs free energy (ΔGo), enthalpy (ΔHo) and entropy (ΔSo) are reveals that the efficiency of CO2 sorption in ILs. The sorption of CO2 significantly influenced by the temperature and pressure, [DBUAc] showed highest CO2 sorption efficiency (0.7992 mol/mol IL). The experimental and thermodynamic results are confirmed that the solubility efficiency of CO2 as follows: [DBUAc] > [DBUTFAc] > [DBUTFMSA] > [DBUMSA]. Finally, FTIR and COSMO-RS analysis were performed to determine the CO2 sorption efficiency in ILs.Venkatramana LosettyC. Hazarathaiah YadavCecilia Devi WilfredRamesh L. GardasElsevierarticleCO2 solubilityIonic liquidCOSMO-RS studyFTIR analysisThermodynamic functionThermodynamicsQC310.15-319ENChemical Thermodynamics and Thermal Analysis, Vol 3, Iss , Pp 100021- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	CO2 solubility Ionic liquid COSMO-RS study FTIR analysis Thermodynamic function Thermodynamics QC310.15-319
spellingShingle	CO2 solubility Ionic liquid COSMO-RS study FTIR analysis Thermodynamic function Thermodynamics QC310.15-319 Venkatramana Losetty C. Hazarathaiah Yadav Cecilia Devi Wilfred Ramesh L. Gardas Study of CO2 solubility in bicyclic ionic liquids by thermodynamic properties and FT-IR spectroscopic analysis at T=(303.15 and 313.15) K
description	Ionic liquids (ILs) are alternative substances for post-combustion CO2 captures because of their tunable properties are modified in terms of cation and anion alteration. The basicity and fluorination of either cation or anion of the ILs may increases the CO2 sorption affinity. In this study, four 1,8-diazabicyclo[5.4.0]undec‑7-ene (DBU) based ILs, namely [DBUAc], [DBUTFA], [DBUMSA] and [DBUTFMSA] were used to study the CO2 solubility at various pressures and temperatures. From the pressure-concentration-temperature data, Henry's constant (KH) was predicted to calculate the sorption efficiency of studied ILs. The sign and magnitude of thermodynamic properties such as Henry's constant (KH), Gibbs free energy (ΔGo), enthalpy (ΔHo) and entropy (ΔSo) are reveals that the efficiency of CO2 sorption in ILs. The sorption of CO2 significantly influenced by the temperature and pressure, [DBUAc] showed highest CO2 sorption efficiency (0.7992 mol/mol IL). The experimental and thermodynamic results are confirmed that the solubility efficiency of CO2 as follows: [DBUAc] > [DBUTFAc] > [DBUTFMSA] > [DBUMSA]. Finally, FTIR and COSMO-RS analysis were performed to determine the CO2 sorption efficiency in ILs.
format	article
author	Venkatramana Losetty C. Hazarathaiah Yadav Cecilia Devi Wilfred Ramesh L. Gardas
author_facet	Venkatramana Losetty C. Hazarathaiah Yadav Cecilia Devi Wilfred Ramesh L. Gardas
author_sort	Venkatramana Losetty
title	Study of CO2 solubility in bicyclic ionic liquids by thermodynamic properties and FT-IR spectroscopic analysis at T=(303.15 and 313.15) K
title_short	Study of CO2 solubility in bicyclic ionic liquids by thermodynamic properties and FT-IR spectroscopic analysis at T=(303.15 and 313.15) K
title_full	Study of CO2 solubility in bicyclic ionic liquids by thermodynamic properties and FT-IR spectroscopic analysis at T=(303.15 and 313.15) K
title_fullStr	Study of CO2 solubility in bicyclic ionic liquids by thermodynamic properties and FT-IR spectroscopic analysis at T=(303.15 and 313.15) K
title_full_unstemmed	Study of CO2 solubility in bicyclic ionic liquids by thermodynamic properties and FT-IR spectroscopic analysis at T=(303.15 and 313.15) K
title_sort	study of co2 solubility in bicyclic ionic liquids by thermodynamic properties and ft-ir spectroscopic analysis at t=(303.15 and 313.15) k
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/508941a8093842e69242a59028acf7f2
work_keys_str_mv	AT venkatramanalosetty studyofco2solubilityinbicyclicionicliquidsbythermodynamicpropertiesandftirspectroscopicanalysisatt30315and31315k AT chazarathaiahyadav studyofco2solubilityinbicyclicionicliquidsbythermodynamicpropertiesandftirspectroscopicanalysisatt30315and31315k AT ceciliadeviwilfred studyofco2solubilityinbicyclicionicliquidsbythermodynamicpropertiesandftirspectroscopicanalysisatt30315and31315k AT rameshlgardas studyofco2solubilityinbicyclicionicliquidsbythermodynamicpropertiesandftirspectroscopicanalysisatt30315and31315k
_version_	1718445208159387648

Study of CO2 solubility in bicyclic ionic liquids by thermodynamic properties and FT-IR spectroscopic analysis at T=(303.15 and 313.15) K

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