Preparation and characterization of Ni(OH)2 nanoparticles coated with dialkyldithiophosphate

被引：10
|
作者：
Zhang, JY [1 ]
Yang, SR [1 ]
Xue, QJ [1 ]
机构：
[1] Chinese Acad Sci, Lanzhou Inst Chem Phys, Lab Solid Lubricat, Lanzhou 730000, Peoples R China
来源：
JOURNAL OF MATERIALS RESEARCH | 2000年 / 15卷 / 02期
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1557/JMR.2000.0080
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Ni(OH), nanoparticles modified with di-n-hexadecyldithiophosphate (DDP) were prepared by a chemical surface modification method. The structure of the nanocluster was investigated using infrared spectroscopy, x-ray photoelectron spectroscopy, x-ray diffraction, transmission electron microscopy, and P-31 nuclear magnetic resonance spectroscopy. The thermal stability of DDP coating on the Ni(OH), nanoparticles was compared to that of pyridinium di-n-hexadecyldithiophosphate (PyDDP) using thermogravimetric analysis. It was found that coated Ni(OH), nanoparticles had an average diameter of about 5 nm, Surface modification with DDP prevented water adsorption and effectively improved the dispersive capacity and antioxidative stability of Ni(OH), nanoparticles, The thermal stability of DDP coatings on the surface of nano-Ni(OH), particles was higher than that of PyDDP coatings because of the chemical interaction between PyDDP and Ni(OH), during the coating process.
引用
收藏
页码：541 / 545
页数：5
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