摘要
研究了TEBAC-GL(1∶3)离子液体中Mg(Ⅱ)和Ni(Ⅱ)离子在玻碳电极上的电化学行为。结果表明,Ni(Ⅱ)离子在离子液体中的还原受扩散控制,其扩散系数为7.864×10-8cm^2/s。Mg(Ⅱ)离子不能单独在离子液体还原,但在Ni(Ⅱ)离子的诱导下可以发生共沉积。通过控制槽电压电沉积,在铜基体上成功地共沉积出Ni-Mg合金。随着槽电压的逐渐增加,沉积物中的镁含量先增加后减小。在槽电压为2.3V,镁含量最高,达到12.13%。
The electrochemical behaviors of Ni and Mg ions at a glassy carbon electrode in TEBAC GL(1∶3)ionic liquid analogues were studied It is found that the reduction of Ni on a glassy carbon electrode is a diffusion controlled process and the diffusion coefficient of Ni was7864×10-8cm2/s In addition,Mg can’t be reduced alone,but can co deposited with Ni under the inducement effect of Ni in this solvent The co deposition of Ni Mg alloys was investigated at Cu electrodes Ni Mg deposits containing up to1213%mass fraction Mg could be electrodeposited from TEBAC GL ionic liquid analogues at cell voltage of23V,but the Mg content of these deposits decreased as the cell voltage was increased or decreased
作者
卢东辉
徐存英
雷震
牛平召
吕栋梁
LU Dong-hui;XUN Cun-ying;LEI Zhen;NIU Ping-zhao;LV Dong-Hang(Faculty of Metallurgical and Energy Engineering Kunming University of Science and Technology, Kunming 650093 , China;State Key Laboratory of Complex Nonferrons Metal Resources Cleaning Utilization in Yunnan Provincc, Kunming 650093, China)
出处
《矿冶》
CAS
2017年第6期51-54,62,共5页
Mining And Metallurgy
基金
国家自然科学基金(21263007)
关键词
镁镍合金
类离子液体
电沉积
TEBAC-GL
magnesium nickel alloys
ionic liquid analogues
electrodeposition
TEBAC GL
