Fabrication and Tribological Properties of Pb Nanoparticles |
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Authors: | Zhao Yanbao Zhang Zhijun Dang Hongxin |
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Affiliation: | (1) Laboratory of Special Functional Materials, Henan University, Kaifeng, 475002, China;(2) State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China |
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Abstract: | In this paper, we describe a surfactant-assisted solution dispersion method to obtain metal nanoparticles, which involves dispersing and stabilizing metal droplets in an appropriate solvent. This method has been successfully used to prepare Pb nanoparticles from bulk Pb. The X-ray powder diffraction and transmission electron microscopy investigations show the formation of Pb nanoparticles possessing the same crystal structure as bulk metal and an average particle diameter of 40 nm. Thermal analysis indicates that Pb nanoparticles have organic shell, which is in agreement with the excellent oil-solubility. In addition, the tribological properties of Pb nanoparticles as additive in oil are discussed. |
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Keywords: | solution dispersion preparation Pb nanoparticle characterization tribological properties colloids |
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