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Physicochemical Properties of Various 2-Hydroxyethylammonium Sulfonate-Based Protic Ionic Liquids and Their Potential Application in Hydrodeoxygenation
Cai, Guangming1,2; Yang, Shaoqi1,2; Zhou, Qing1,2; Liu, Lifei1; Lu, Xingmei1,2; Xu, Junli1; Zhang, Suojiang1,2
2019-04-05
Source PublicationFRONTIERS IN CHEMISTRY
ISSN2296-2646
Volume7Pages:12
AbstractIn order to obtain the regularities of physicochemical properties of hydroxy protic ionic liquids (PILs) and broaden their potential application, a series of 2-hydroxyethylammonium sulfonate-based PILs were synthesized through proton transfer reaction and characterized by NMR and FT-IR and elemental analysis. Their phase transfer behavior (T-m) and initial decomposition point (T-d) were characterized by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA), respectively. Meanwhile, the regularities of density (rho), viscosity (eta) and electrical conductivity (sigma) of synthesized PILs at different temperatures were measured. The results indicated that their physicochemical properties were tightly related with their structures and the interactions between cations and anions. In addition, the dissociation constants (pKa) of synthesized PILs were obtained by acid-base titration, which revealed that all synthesized PILs had pKa exceeding 7 and their cations were the crux of determining the pKa value. Moreover, several synthesized PILs with a low melting temperature also showed potential application in the deoxidation reaction of cyclohexanol, as they had conversion rates approximating 100% and the selectivity of cyclohexane or cyclohexene was about 80%.
Keywordprotic ionic liquids density viscosity electrical conductivity dissociation constants deoxidation reaction
DOI10.3389/fchem.2019.00196
Language英语
WOS KeywordLIGNIN-DERIVED PHENOLS ; ALKYL CHAIN-LENGTH ; BINARY-MIXTURES ; THERMOPHYSICAL PROPERTIES ; THERMAL-DECOMPOSITION ; MODEL COMPOUNDS ; CO2 ABSORPTION ; IMIDAZOLIUM ; SEPARATION ; EFFICIENT
Funding ProjectMajor Program of National Natural Science Foundation of China[21890762] ; National Natural Scientific Fund of China[21776289] ; National Natural Scientific Fund of China[21878292] ; National Natural Scientific Fund of China[21606240] ; K. C. Wong Education Foundation ; Strategic Priority Research Program of Chinese Academy of Science[XDA21060300]
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
Funding OrganizationMajor Program of National Natural Science Foundation of China ; National Natural Scientific Fund of China ; K. C. Wong Education Foundation ; Strategic Priority Research Program of Chinese Academy of Science
WOS IDWOS:000463468800002
PublisherFRONTIERS MEDIA SA
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/28248
Collection中国科学院过程工程研究所
Corresponding AuthorZhou, Qing; Zhang, Suojiang
Affiliation1.Chinese Acad Sci, State Key Lab Multiphase Complex Syst, Beijihg Key Lab Ion Liquids Clean Proc, CAS Key Lab Green Proc & Engn,Inst Proc Engn, Beijing, Peoples R China
2.Univ Chinese Acad Sci, Sch Chem Engn, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Cai, Guangming,Yang, Shaoqi,Zhou, Qing,et al. Physicochemical Properties of Various 2-Hydroxyethylammonium Sulfonate-Based Protic Ionic Liquids and Their Potential Application in Hydrodeoxygenation[J]. FRONTIERS IN CHEMISTRY,2019,7:12.
APA Cai, Guangming.,Yang, Shaoqi.,Zhou, Qing.,Liu, Lifei.,Lu, Xingmei.,...&Zhang, Suojiang.(2019).Physicochemical Properties of Various 2-Hydroxyethylammonium Sulfonate-Based Protic Ionic Liquids and Their Potential Application in Hydrodeoxygenation.FRONTIERS IN CHEMISTRY,7,12.
MLA Cai, Guangming,et al."Physicochemical Properties of Various 2-Hydroxyethylammonium Sulfonate-Based Protic Ionic Liquids and Their Potential Application in Hydrodeoxygenation".FRONTIERS IN CHEMISTRY 7(2019):12.
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