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Imidazole tailored deep eutectic solvents for CO2 capture enhanced by hydrogen bonds
Cao, Lingdi1,2,3; Huang, Junhua3,4; Zhang, Xiangping1; Zhang, Suojiang1; Gao, Jubao1; Zeng, Shaojuan1,2
2015
Source PublicationPHYSICAL CHEMISTRY CHEMICAL PHYSICS
ISSN1463-9076
Volume17Issue:41Pages:27306-27316
AbstractDeep eutectic solvents (DESs) have emerged as promising alternative candidates for CO2 capture in recent years. In this work, several novel DESs were firstly prepared to enhance CO2 absorption. Structural and physical properties of DESs were investigated, as well as their absorption performance of CO2. A distinct depression in the melting point up to 80 K of DESs was observed compared with that of BMIMCl. The observed red shifts of the C2H group in an imidazolium ring and its chemical shifts downfield in NMR spectra are indicative of a hydrogen bond interaction between BMIMCl and MEA. In particular, CO2 uptake in MEA: ILs (4:1) at room temperature and atmospheric pressure is up to 21.4 wt%, which is higher than that of 30 wt% MEA (13%). A hydrogen bond related mechanism was proposed in which ILs act as a medium to improve CO2 uptake through hydrogen bonds. Finally, the firstly reported overall heat of CO2 absorption is slightly higher than that of 30 wt% MEA, implying that the hydrogen bonds of DESs contribute to the overall heat of CO2 absorption. This study reveals that the heat of CO2 absorption can be tailored by the proper molar ratio of MEA and ILs.
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1039/c5cp04050g
Indexed BySCI
Language英语
WOS KeywordTEMPERATURE IONIC LIQUIDS ; CARBON-DIOXIDE CAPTURE ; PRESSURE PHASE-BEHAVIOR ; EFFICIENT SO2 CAPTURE ; CHOLINE-CHLORIDE ; LOW-VISCOSITY ; MODERATE PRESSURES ; AQUEOUS-SOLUTIONS ; HEAT-CAPACITIES ; HOLE THEORY
WOS Research AreaChemistry ; Physics
WOS SubjectChemistry, Physical ; Physics, Atomic, Molecular & Chemical
Funding OrganizationAustralian Academy of Technological Science and Engineering Joint Collaboration Group of Clean Coal Program ; National Natural Science Fund for Distinguished Young Scholars(21425625) ; Beijing Municipal Natural Science Foundation(2141003) ; International S&T Cooperation Program of China(2014DFA61670)
WOS IDWOS:000363193800009
Citation statistics
Cited Times:45[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/19744
Collection湿法冶金清洁生产技术国家工程实验室
Affiliation1.Chinese Acad Sci, Beijing Key Lab Ion Liquids Clean Proc, State Key Lab Multiphase Complex Syst, Key Lab Green Proc & Engn,Inst Proc Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Coll Chem & Chem Engn, Beijing 100049, Peoples R China
3.CSIRO Energy Technol, Clayton, Vic 3169, Australia
4.Monash Univ, Sch Chem, Clayton, Vic 3800, Australia
Recommended Citation
GB/T 7714
Cao, Lingdi,Huang, Junhua,Zhang, Xiangping,et al. Imidazole tailored deep eutectic solvents for CO2 capture enhanced by hydrogen bonds[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2015,17(41):27306-27316.
APA Cao, Lingdi,Huang, Junhua,Zhang, Xiangping,Zhang, Suojiang,Gao, Jubao,&Zeng, Shaojuan.(2015).Imidazole tailored deep eutectic solvents for CO2 capture enhanced by hydrogen bonds.PHYSICAL CHEMISTRY CHEMICAL PHYSICS,17(41),27306-27316.
MLA Cao, Lingdi,et al."Imidazole tailored deep eutectic solvents for CO2 capture enhanced by hydrogen bonds".PHYSICAL CHEMISTRY CHEMICAL PHYSICS 17.41(2015):27306-27316.
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