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Electrodeposition of Al from chloroaluminate ionic liquids with different cations
Wang, Qian1; Zhang, Qinqin1,2; Lu, Xingmei1; Zhang, Suojiang1
Source PublicationIONICS

Four typical chloroaluminate ionic liquids (ILs) with different cations, namely 1-butyl-3-methylimidazoliumchloride [Bmim]Cl/AlCl3 (33.3/66.7 mol%), 1-butyl-3-methylpyridinium chloride [BMPyri]Cl/AlCl3 (33.3/66.7 mol%), 1-butyl-1-methylpyrrolidiniumchloride [Py-1,Py-4]Cl/AlCl3 (33.3/66.7 mol%), and trimethylphenylammonium chloride [TMPA]Cl/AlCl3 (33.3/66.7 mol%), were employed to deposit Al. The viscosity and ionic conductivity of these ILs were measured. The results showed that [Bmim]Cl/AlCl3 (33.3/66.7 mol%) had the lowest viscosity and the highest conductivity. Raman spectra showed that Al2Cl7 (-) was the main anion in the four systems. Cyclic voltammetry indicated that [Bmim]Cl/AlCl3 (33.3/66.7 mol%) had the highest reduction current for Al deposition in the four ILs. By comparing the quality of the Al coatings prepared at the same current density and temperature, it was found that compact and smooth Al deposits could be obtained from [Bmim]Cl/AlCl3 (33.3/66.7 mol%) at 303 K, while the temperature needed was higher than 333 K for the other three ILs to obtain Al deposits with the same quality. Based on the density functional theory (DFT) calculations, the differences in these properties were attributed to the different molecular structure and cation-anion interaction induced by the cations of these ILs.

KeywordChloroaluminate Ionic Liquids Electrodeposition Al Coatings Cations Cation-anion Interaction
WOS HeadingsScience & Technology ; Physical Sciences
Indexed BySCI
WOS KeywordAluminum-chloride ; Magnesium Alloy ; Mixtures ; Viscosity ; Behavior ; Density ; Metals
WOS Research AreaChemistry ; Electrochemistry ; Physics
WOS SubjectChemistry, Physical ; Electrochemistry ; Physics, Condensed Matter
Funding OrganizationGeneral Program Youth of National Natural Science Foundation of China(51404230 ; National Basic Research Program of China(2013CB632606) ; CAS Province Cooperation Program(2014JZ0012) ; 21406002)
WOS IDWOS:000407595100024
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Document Type期刊论文
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
Recommended Citation
GB/T 7714
Wang, Qian,Zhang, Qinqin,Lu, Xingmei,et al. Electrodeposition of Al from chloroaluminate ionic liquids with different cations[J]. IONICS,2017,23(9):2449-2455.
APA Wang, Qian,Zhang, Qinqin,Lu, Xingmei,&Zhang, Suojiang.(2017).Electrodeposition of Al from chloroaluminate ionic liquids with different cations.IONICS,23(9),2449-2455.
MLA Wang, Qian,et al."Electrodeposition of Al from chloroaluminate ionic liquids with different cations".IONICS 23.9(2017):2449-2455.
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