CAS OpenIR
Solvation effect of [BMIM]Cl/AlCl3 ionic liquid electrolyte
Kang, Yanhong1,2; Chen, Shimou1; Wang, Qian1; Lang, Haiyan1; Jia, Chuqiao2; Zhang, Bo2
2019
Source PublicationIONICS
ISSN0947-7047
Volume25Issue:1Pages:163-169
AbstractFour kinds of solvents, methylene chloride (CH2Cl2), toluene (TOL), ethyl acetate (EtoAc), and dimethyl carbonate (DMC), were added into the 1-butyl-3-methylimidazolium chloroaluminate ionic liquid ([BMIM]Cl/AlCl3 IL) to improve the property of the IL-based electrolyte for aluminum (Al) electrolysis. Solvation effects of these solvents on the physical properties, electrochemical properties, and electroactive ion of the [BMIM]Cl/AlCl3 IL-based electrolyte were investigated. It was found that the viscosity of the IL electrolyte decreased after adding CH2Cl2 or TOL, and the conductivity increased while the change of the conductivity and the viscosity moved in the opposite direction with the addition of EtoAc or DMC. The UV-Vis spectra showed that the electroactive Al ion continued existence after adding CH2Cl2 or TOL, but there was solvation effect between TOL and BMIM+. On the other hand, both EtoAc and DMC had solvation effects with electroactive Al ion and BMIM+. The results illustrated that solvation effect was the key effect on the reduction of Al on the cathode, and further influenced the morphology of the Al deposits. In addition, the concentration polarization reduced and the efficiency of electrolysis improved after adding CH2Cl2 or TOL. Furthermore, bright Al coatings were obtained finally by adding CH2Cl2 into [BMIM]Cl/AlCl3 IL electrolyte (when the mole ratio of CH2Cl2 is around 66.7 similar to 75%).
KeywordIonic liquids Electrodeposition Aluminum Solvation effect
DOI10.1007/s11581-018-2586-3
Language英语
WOS KeywordELECTRODEPOSITION ; ALUMINUM ; AL ; 1H-1,2,4-TRIAZOLE ; MORPHOLOGY ; ADDITIVES ; MIXTURES ; STEEL
Funding ProjectNational Natural Science Foundation of China[21276257] ; National Natural Science Foundation of China[21210006] ; National Natural Science Foundation of China[51404230] ; Beijing Natural Science Foundation of China[2132054] ; National Key Technology Research and Development Program of the Ministry of Science and Technology of China[2012BAF03B01] ; Department of Education of Liaoning Province Science Foundation[L201602]
WOS Research AreaChemistry ; Electrochemistry ; Physics
WOS SubjectChemistry, Physical ; Electrochemistry ; Physics, Condensed Matter
Funding OrganizationNational Natural Science Foundation of China ; Beijing Natural Science Foundation of China ; National Key Technology Research and Development Program of the Ministry of Science and Technology of China ; Department of Education of Liaoning Province Science Foundation
WOS IDWOS:000455254500018
PublisherSPRINGER HEIDELBERG
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/27771
Collection中国科学院过程工程研究所
Corresponding AuthorKang, Yanhong; Chen, Shimou
Affiliation1.Chinese Acad Sci, Beijing Key Lab Ion Liquids Clean Proc, Key Lab Green Proc & Engn, State Key Lab Multiphase Complex Syst,Inst Proc E, Beijing 100190, Peoples R China
2.Shenyang Normal Univ, Coll Chem & Chem Engn, Shenyang 110034, Liaoning, Peoples R China
Recommended Citation
GB/T 7714
Kang, Yanhong,Chen, Shimou,Wang, Qian,et al. Solvation effect of [BMIM]Cl/AlCl3 ionic liquid electrolyte[J]. IONICS,2019,25(1):163-169.
APA Kang, Yanhong,Chen, Shimou,Wang, Qian,Lang, Haiyan,Jia, Chuqiao,&Zhang, Bo.(2019).Solvation effect of [BMIM]Cl/AlCl3 ionic liquid electrolyte.IONICS,25(1),163-169.
MLA Kang, Yanhong,et al."Solvation effect of [BMIM]Cl/AlCl3 ionic liquid electrolyte".IONICS 25.1(2019):163-169.
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