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首页> 外文期刊>Surface Engineering >Structure, microstructure and electrodeposition behaviours of aluminium from AlCl3-EMIC and AlCl3-BMIC ionic liquid electrolytes - a comparative study
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Structure, microstructure and electrodeposition behaviours of aluminium from AlCl3-EMIC and AlCl3-BMIC ionic liquid electrolytes - a comparative study

机译：ALCL3-EMIC和ALCL3-BMIC离子液体电解质铝的结构，微观结构和电沉积行为 - 比较研究

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摘要

Electrodeposition of aluminium on the copper substrate using two different chloroaluminate ionic liquid electrolytes such as AlCl3/1-Butyl-3-methylimidazolium chloride electrolyte (AlCl3-BMIC) and AlCl3/1-Ethyl-3-methylimidazolium chloride electrolyte (AlCl3-EMIC) were studied. Cyclic voltammetry studies reveal the aluminium deposition process follows two steps mechanism in AlCl3-EMIC electrolytes and in AlCl3-BMIC electrolytes, it follows single-step mechanism. The AlCl3-EMIC electrolytes permit wide deposition current density window than the AlCl3-BMIC electrolytes for aluminium deposition with good properties. The aluminium deposits obtained from AlCl3-EMIC electrolyte have better surface properties than the deposits obtained from AlCl3-BMIC electrolyte. Detailed comparative studies of deposits obtained from these two electrolytes with respect to deposition mechanism, deposition efficiency and deposition current density window were done. The deposit properties such as surface morphology, microstructure and crystal structures were also compared. From this study, we observed the AlCl3-EMIC electrolyte gives good quality deposits than AlCl3-BMIC electrolyte.
机译：使用两种不同的氯铝酸铝离子液体电解质如ALCl3 / 1-丁基-3-甲基咪唑氯化物电解质（ALCL3-BMIC）和ALCL3 / 1-乙基-3-甲基咪唑氯化物电解质（ALCL3-EMIC）电沉积的铜基基材上的电沉积研究过。循环伏安法研究揭示铝沉积过程在ALCL3-EMIC电解质和ALCL3-BMIC电解质中遵循两个步骤机制，其遵循单步机制。 ALCL3-EMIC电解质允许宽沉积电流密度窗口而不是铝沉积的AlCl3-BMIC电解质，具有良好的性能。从ALCL3-EMIC电解质获得的铝沉积物具有比从ALCL3-BMIC电解质获得的沉积物更好的表面性质。完成了对沉积机构，沉积效率和沉积电流密度窗口从这两个电解质获得的沉积物的详细比较研究。还比较了表面形态，微观结构和晶体结构的沉积性质。从本研究中，我们观察到ALCL3-EMIC电解质提供的优质沉积物，而不是AlCl3-BMIC电解质。

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