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The synthesis of two-dimensional MoS(2 )nanosheets with enhanced tribological properties as oil additives

机译：具有增强的摩擦学特性的二维MOS（2）纳米片的合成作为油添加剂

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摘要

The use of MoS(2 )nanosheets as oil additives has been proved effective to reduce friction and wear. Furthermore, it has been suggested that the synthesis of MoS(2 )nanosheets with an ultrathin structure could benefit the friction and wear reduction, as they would penetrate into the contact area easily. In this paper, two-dimensional MoS2 nanosheets were successfully fabricated by a solvothermal method with the aid of oleylamine. Meanwhile, the synthesized MoS2 nanosheets exhibited perfect dispersing stability in paraffin oil, due to the surface modification by oleylamine molecules. The friction and wear properties of the synthesized MoS2 nanosheets as oil additives were investigated using a ball-on-disk tribotester. The results showed that the two-dimensional MoS2 nanosheets exhibited enhanced friction-reducing and antiwear behaviors as compared to the multilayered MoS2 nanosheets. The prominent tribological performance of the two-dimensional MoS2 nanosheets was attributed to the formation of a thick tribofilm inside the wear tracks, which was confirmed by XPS analyses of the rubbing interfaces.
机译：已经证明了使用MOS（2）纳米片作为油添加剂，以减少摩擦和磨损。此外，已经提出了具有超薄结构的MOS（2）纳米片的合成可以使摩擦和磨损减少，因为它们可以容易地渗透到接触区域中。在本文中，通过借助于油胺，通过溶剂热法成功地制造了二维MOS2纳米片。同时，由于油胺分子的表面改性，合成的MOS2纳米片在石蜡油中表现出完善的分散稳定性。使用圆盘上的Tribotester研究了合成MOS2纳米片作为含油添加剂的摩擦和磨损性能。结果表明，与多层MOS2纳米晶片相比，二维MOS2纳米片显示出增强的摩擦减小和抗磨损行为。二维MOS2纳米片的突出的摩擦学性能归因于磨损轨道内部形成厚的呋喃酚，其通过摩擦界面的XPS分析确认。

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  • 来源
    《RSC Advances》 |2018年第17期|共10页
  • 作者

    Yi Meirong; Zhang Chenhui;

  • 作者单位

    Tsinghua Univ State Key Lab Tribol Beijing 100084 Peoples R China;

    Tsinghua Univ State Key Lab Tribol Beijing 100084 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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