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首页> 外文期刊>Materials Science and Engineering >Microstructural aspects of manganese metal during its electrodeposition from sulphate solutions in the presence of quaternary amines
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Microstructural aspects of manganese metal during its electrodeposition from sulphate solutions in the presence of quaternary amines

机译：季胺存在下从硫酸盐溶液中电沉积锰金属时的微观结构

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摘要

In the present study investigation was made on the electrodeposition of manganese from sulphate solutions in the presence of quaternary amines TEABr, TPABr and TBABr. The concentrations of these additives were varied over a relatively broad range to evaluate their effect on the deposit morphology and preferred crystal orientations of the electrodeposited metal. TEABr resulted in bright and smooth manganese electrodeposits giving euhedral shape to the crystals with distinct triple junction points. TPABr also showed similar results at lower concentrations. However, TBABr resulted in the formation of dendritic growths with elongated poly-nodular crystals similar to that of Paragorgia corals having uniform multistep growths. The presence of these quaternary amines in the electrolyte causes polarisation of the cathode. TBABr being the strongest cathode polariser adsorbs strongly on the cathode resulting in poor deposit quality. TEABr was found to be the most efficient additive producing the desired quality manganese electrodeposit.
机译：在本研究中，在季胺TEABr，TPABr和TBABr的存在下，对硫酸溶液中锰的电沉积进行了研究。这些添加剂的浓度在相对较宽的范围内变化，以评估其对电沉积金属的沉积形态和优选晶体取向的影响。 TEABr产生明亮而光滑的锰电沉积物，使具有明显三重连接点的晶体呈现正方体形状。在较低浓度下，TPABr也显示出相似的结果。然而，TBABr导致树突状生长的形成，类似于具有均匀多步生长的巴拉圭珊瑚长形的多结节状晶体。这些季胺在电解质中的存在引起阴极极化。 TBABr是最强的阴极偏振器，在阴极上强烈吸附，导致沉积质量差。发现TEABr是产生所需质量的锰电沉积的最有效添加剂。

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  • 来源
    《Materials Science and Engineering》 |2015年第3期|83-90|共8页
  • 作者

    Subrat Kumar Padhy; P. Patnaik; B.C. Tripathy; I.N. Bhattacharya;

  • 作者单位

    CSIR - Institute of Minerals and Materials Technology, Council of Scientific and Industrial Research, Bhubaneswar 751013, India,Academy of Scientific and Innovative Research, CSIR Campus, CSIR Road, Taramani, Chennai 600 113, India;

    CSIR - Institute of Minerals and Materials Technology, Council of Scientific and Industrial Research, Bhubaneswar 751013, India;

    CSIR - Institute of Minerals and Materials Technology, Council of Scientific and Industrial Research, Bhubaneswar 751013, India,Academy of Scientific and Innovative Research, CSIR Campus, CSIR Road, Taramani, Chennai 600 113, India,Hydro & Electrometallurgy Department, CSIR - Institute of Minerals and Materials Technology, Bhubaneswar 751013, Odisha, India;

    CSIR - Institute of Minerals and Materials Technology, Council of Scientific and Industrial Research, Bhubaneswar 751013, India;

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  • 正文语种 eng
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  • 关键词

    Manganese; Organic additives; Electrodeposition; Microstructure; Deposit morphology; Polarisation behaviour;

    机译：锰;有机添加剂;电沉积;微观结构沉积形态极化行为;

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