在室温条件下,以NiCl2·6H2O,NH3·H2O和NaOH为原料,通过滴加氢氧化钠溶液到[Ni(NH3)6]2+配合物离子溶液中,经氢氧根离子取代氨分子与镍离子结合,实现可控合成氢氧化镍纳米晶粒。采用傅里叶变换红外光谱(FT-IR),综合热分析(TGA-DTG)仪,X射线衍射(XRD)仪和扫描电子显微镜(SEM)等测试技术对实验样品性质进行分析。结果表明:氨-碱均匀沉淀技术制备的样品为β-Ni(OH)2,平均粒径约为100 nm,且β-Ni(OH)2含有较多的镍成分和很少的层间离子,有利于提高β-Ni(OH)2的电化学性质。 Under the condition of room temperature, NiCl 2 · 6H 2 O, NH 3 · H 2 O and NaOH were used as raw materials, and sodium hydroxide solution was added dropwise to [Ni (NH 3) 6] 2+ ion solution. Nickel ions combine to achieve controlled synthesis of nickel hydroxide nanoparticles. The properties of the experimental samples were analyzed by FT-IR, TGA-DTG, X-ray diffraction (XRD) and scanning electron microscopy (SEM). The results showed that β-Ni (OH) 2 was prepared by ammonia-alkali homogenization, the average particle size was about 100 nm, and β-Ni (OH) 2 contained more nickel and less interlayer ions , Is conducive to improving the electrochemical properties of β-Ni (OH) 2.