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通过水热合成法,以葡萄糖酸钠与硝酸镍为起始原料,一步法制备了前驱体碳杂Ni(OH)2复合微球(C-Ni(OH)2)。然后以制得的C-Ni(OH)2微球前驱体,在空气氛围下进行焙烧,制备出镂空结构NiO微球。通过场发射扫描电镜(FE-SEM)、X-射线衍射(XRD)、X-射线能谱(EDS)和氮气吸附脱附(EBT)等实验方法对其进行了分析,结果表明该微球主要是由几十个纳米的颗粒结合而成。由于前驱体为碳杂Ni(OH)2复合微球,氢氧化镍不仅存在于该微球的表面,而是存在于整个微球中,所以导致了部分焙烧出的NiO空心球出现了特殊的“球套球”的结构。
The precursor carbon-hybrid Ni (OH) 2 composite microspheres (C-Ni (OH) 2) were prepared by a hydrothermal method using sodium gluconate and nickel nitrate as starting materials. Then the precursor of C-Ni (OH) 2 microspheres prepared was calcined in an air atmosphere to prepare the hollow structure NiO microspheres. The microspheres were characterized by field emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD), X-ray energy dispersive spectroscopy (EDS) and nitrogen adsorption desorption (EBT) Is composed of dozens of nano-particles from the combination. As the precursor is carbon hybrid Ni (OH) 2 composite microspheres, nickel hydroxide not only exists on the surface of the microspheres, but exists in the entire microspheres, resulting in the partially calcined NiO hollow spheres appear special “Ball set ball ” structure.