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本文用胶溶法合成了NiO纳米晶超微粒.初步探讨了合成的最佳实验条件.研究了不同灼烧温度及同一温度不同灼烧时间对NiO超微粒子微晶的晶化过程的影响.用X射线衍射、红外光谱、热重、差热、透射电镜研究了样品的性能.结果表明,用胶溶法制得的NiO纳米晶的粒度均小于6nm,属立方晶系,形状为球形.电导率随着温度的升高而迅速增大,是一个有应用前景的热敏材料.
In this paper, NiO nanocrystalline ultrafine particles were synthesized by the peptization method, and the optimum experimental conditions were discussed.The effects of different burning temperatures and different burning times on the crystallization process of NiO nanocrystalline microcrystals were studied. XRD, FTIR, TG, DTA and TEM.The results show that the size of NiO nanocrystals prepared by the peptization method is less than 6 nm, which belongs to the cubic crystal system with spherical shape.The electrical conductivity With the rapid increase of temperature increases, is a promising thermal materials.