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采用醇-水法制备氧化镍/乙炔黑(NiO/AB)复合物前驱体,经煅烧得到NiO/AB复合物,采用X射线衍射光谱(XRD)和扫描电子显微镜(SEM)等对复合物进行结构分析,研究了煅烧温度对复合物性能的影响.结果表明,乙炔黑的引入有利于生成晶粒尺寸小(4.5nm)的NiO粒子,同时能够提高NiO材料的导电性能.在300至400℃的煅烧温度区间内,升高煅烧温度使NiO晶型结构趋于稳定,电容特性得到改善,但比容量会迅速衰减;NiO/AB复合物前驱体的最佳煅烧温度为350℃.
The NiO / AB composite precursors were prepared by the alcohol-water method and calcined to obtain the NiO / AB composite. The complexes were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM) The effect of calcination temperature on the properties of the composites was studied.The results show that the introduction of acetylene black is conducive to the formation of NiO particles with small grain size (4.5nm) and the conductivity of NiO can be improved.At 300 ℃ to 400 ℃ In the calcination temperature range, the calcination temperature increases, the crystal structure of NiO tends to be stable and the capacitance properties improve, but the specific capacity decays rapidly. The optimum calcination temperature of NiO / AB precursor is 350 ℃.