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Electrodeposition of aluminium foils on carbon electrodes in low temperature ionic liquid

机译：低温离子液体碳电极铝箔电沉积

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摘要

To inhibit dendrite formation for aluminium electrodeposition in room-temperature ionic liquid electrolyte, a promising method for electrodeposition of non-dendritic aluminium foils on carbon cathodes is investigated. The effect of current density, deposition time, temperature, and cathode materials on the deposit morphology of aluminium foils in AlCl3-1-butyl-3-methyl-imidazolium chloride (AlCl3-[Bmim] Cl) ionic liquid electrolyte was also studied. The prepared aluminium foils are compact, bright and easy to peel off from the carbon electrodes after electrodeposition. The experimental results show that the high current density and low electrowinning temperature is responsible for the compactness of aluminium foils. The intensity of the (200) plane enhances with the increase of current density. Cathodic current efficiencies of the electrodeposition process are from 79% to 87%. The mechanisms of electrodeposition of non-dendritic aluminium foils in ionic liquids are proposed.
机译：为了抑制室温离子电解质中的铝电沉积的树突形成，研究了在碳阴极上的非树枝状铝箔电沉积的有希望的方法。 还研究了电流密度，沉积时间，温度和阴极材料对AlCl3-1-丁基-3-甲基 - 咪唑氯化物（ALCL3- [Bmim] Cl）离子液体电解质的铝箔沉积形态的影响。 电沉积后，制备的铝箔是紧凑的，明亮且易剥离的碳电极。 实验结果表明，高电流密度和低电平宁温度负责铝箔的紧凑性。 （200）平面的强度随着电流密度的增加而增强。 电沉积工艺的阴极电流效率为79％至87％。 提出了非树枝状铝箔在离子液体中的电沉积机制。

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  • 来源
    《RSC Advances》 |2017年第24期|共7页
  • 作者

    Tu Xianneng; Zhang Junling; Zhang Meng; Cai Yingjun; Lang Haiyan; Tian Guoxin; Wang Yanli;

  • 作者单位

    Harbin Engn Univ Harbin 150001 Peoples R China;

    Chinese Acad Sci Inst Proc Engn Key Lab Green Proc &

    Engn Beijing Key Lab Ionic Liquids Clean Proc Beijing 100190 Peoples R China;

    Harbin Engn Univ Harbin 150001 Peoples R China;

    Chinese Acad Sci Inst Proc Engn Key Lab Green Proc &

    Engn Beijing Key Lab Ionic Liquids Clean Proc Beijing 100190 Peoples R China;

    Chinese Acad Sci Inst Proc Engn Key Lab Green Proc &

    Engn Beijing Key Lab Ionic Liquids Clean Proc Beijing 100190 Peoples R China;

    Harbin Engn Univ Harbin 150001 Peoples R China;

    Harbin Engn Univ Harbin 150001 Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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