The effect of quaternary ammonium-based ionic liquids on copper electrodeposition from acidic sulfate electrolyte

被引：21
|
作者：
Zhang, Qibo [1 ,2 ]
Yu, Xiaolv [1 ,2 ]
Hua, Yixin [1 ,2 ]
Xue, Wei [3 ]
机构：
[1] Kunming Univ Sci & Technol, Key Lab Ion Liquids Met, Fac Met & Energy Engn, Kunming 650093, Peoples R China
[2] State Key Lab Complex Nonferrous Met Resources Cl, Kunming 650093, Peoples R China
[3] Yunnan Open Univ, Fac Network & Continuing Educ, Kunming 650223, Peoples R China
来源：
JOURNAL OF APPLIED ELECTROCHEMISTRY | 2015年 / 45卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Copper; Electrodeposition; Ionic liquids; Adsorption; Nucleation and growth; ORGANIC ADDITIVES; ELECTROCHEMICAL NUCLEATION; THIOUREA; ZINC; BENZOTRIAZOLE; TEMPERATURE; MORPHOLOGY; CHLORIDE; TEXTURE; BATTERY;
D O I：
10.1007/s10800-014-0774-z
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The effect of quaternary ammonium-based ionic liquids (ILs) including tetraethylammonium hydrogen sulfate (NEt4HSO4) and tetrabutylammonium hydrogen sulfate (NBu4HSO4) on copper electrodeposition from acidic sulfate electrolyte was investigated by cyclic voltammetry and chronoamperometric measurements. These ILs were found to have a blocking effect on the copper electroreduction and induced the formation of more leveled and fine-grained cathodic deposits. Analysis of the dimensionless current-time transients indicated that the electrodeposition of copper was involved with instantaneous three-dimensional nucleation with diffusion-controlled growth. The addition of ILs induced the instantaneous nucleation to more progressive one. Data obtained from X-ray diffraction spectra revealed that the presence of these ILs strongly affected the crystallographic orientation of the electrodeposited copper with a (220) preferential orientation.
引用
收藏
页码：79 / 86
页数：8
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