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首页> 外文期刊>RSC Advances >Effect of surfactant concentration in electrolyte on the fabrication and properties of nickel-graphene nanocomposite coating synthesized by electrochemical co-deposition
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Effect of surfactant concentration in electrolyte on the fabrication and properties of nickel-graphene nanocomposite coating synthesized by electrochemical co-deposition

机译：电解质电解质中表面活性剂浓度对电化学共沉积合成的镍 - 石墨烯纳米复合涂层制备及性能的影响

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摘要

Long-time environmental protection of metallic materials is still required in the manufacturing and engineering applications. Nickel-graphene nanocomposite coatings have been prepared on carbon steel using sodium dodecyl sulfate (SDS) as a dispersant in the electrolyte by an electrochemical co-deposition technique. In this study, the effects of surfactants on graphene dispersion, carbon content in the coatings, surface morphology, microstructures, microhardness and corrosion resistance properties of the nanocomposite coatings are explored. The results indicate that the reasonably good graphene dispersion, coarser surface morphology and reduction in grain sizes are achieved upon increasing the surfactant concentration in the electrolyte. The surfactant also influences the preferred orientation of grains during electrodeposition; the (200) plane is the preferred orientation for the nanocomposite produced with SDS in the bath electrolyte. The microhardness, adhesive strength and corrosion performance of the nickel-graphene nanocomposite coatings are found to increase with the increasing concentration of sodium dodecyl sulfate in the deposition bath. Moreover, the influencing mechanism of surfactant concentration on the properties of nanocomposite coatings has been discussed.
机译：在制造和工程应用中仍需要长期环保金属材料。通过电化学共沉积技术，在电解质中的分散剂，在碳钢上制备镍 - 石墨烯纳米复合涂层。在该研究中，探讨了表面活性剂对纳米复合涂料的涂层中碳含量，表面形态，微观结构，显微硬度和耐腐蚀性的影响。结果表明，在增加电解质中的表面活性剂浓度时，实现了合理良好的石墨烯分散，粗糙表面形态和晶粒尺寸的降低。表面活性剂还影响电沉积期间晶粒的优选取向; （200）平面是用SDS在浴电解质中产生的纳米复合材料的优选取向。发现镍石墨烯纳米复合材料涂层的显微硬度，粘合强度和腐蚀性，随着沉积浴中的十二烷基硫酸钠浓度的增加而增加。此外，探讨了表面活性剂浓度对纳米复合涂层性能的影响。

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  • 来源
    《RSC Advances》 |2018年第36期|共9页
  • 作者

    Yasin Ghulam; Arif Muhammad; Nizam Muhammad Naeem; Shakeel Muhammad; Khan Muhammad Abubaker; Khan Waheed Qamar; Hassan Tahira Mehtab; Abbas Zaheer; Farahbakhsh Iman; Zuo Yu;

  • 作者单位

    Beijing Univ Chem Technol State Key Lab Chem Resource Engn Beijing 100029 Peoples R China;

    Beijing Univ Chem Technol State Key Lab Chem Resource Engn Beijing 100029 Peoples R China;

    Beijing Univ Chem Technol State Key Lab Chem Resource Engn Beijing 100029 Peoples R China;

    Beijing Univ Chem Technol State Key Lab Chem Resource Engn Beijing 100029 Peoples R China;

    Beijing Inst Technol Coll Mat Sci &

    Engn Beijing 100081 Peoples R China;

    Beijing Univ Technol Sch Mat Sci &

    Engn Beijing 100029 Peoples R China;

    Islamia Univ Bahawalpur Dept Phys Bahawalpur 63100 Pakistan;

    Beijing Univ Chem Technol State Key Lab Chem Resource Engn Beijing 100029 Peoples R China;

    Islamic Azad Univ Quchan Branch Dept Engn Quchan Iran;

    Beijing Univ Chem Technol State Key Lab Chem Resource Engn Beijing 100029 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
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