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CN102509787A 一种球形掺杂纳米Ni(OH)2的制备方法 无效 - 撤回

一种球形掺杂纳米Ni(OH)2的制备方法
摘要：
一种球形掺杂纳米Ni(OH)2的制备方法，涉及制备球形掺杂纳米Ni(OH)2的方法。解决现有掺杂纳米Ni(OH)2形状不规则的问题。制备方法：向正己醇与表面活性剂的混合溶液中加入烷烃或环烷烃，搅均，再加入含掺杂金属离子和镍离子的溶液，搅匀后滴加碱性溶液，调节pH值为8～11，分离沉淀物，洗涤后焙烧再研磨即可。得到的纳米Ni(OH)2为球形或近球形，晶型为β型。采用钴掺杂的球形纳米Ni(OH)2制作的镉镍电池的1C放电比容量最高达245mAh·g-1，比非球形掺杂纳米Ni(OH)2的镉镍电池提高16％，循环比容量也明显提高。锌和铝掺杂球形纳米Ni(OH)2的1C放电比容量都有所提高。
摘要（英）：

The invention relates to a preparation method of doped spherical nanoscale Ni(OH)2, which solves the problem that the existing doped spherical nanoscale Ni(OH)2 has irregular shape. The preparation method comprises the following steps: adding alkane or cycloalkane in the mixed solution of n-hexanol and surfactant; stirring uniformly; adding a solution doped with metal ions and Ni<2+>, and stirring uniformly; adding an alkaline solution dropwise to adjust pH value to 8 to 11; separating precipitate; washing; calcining; and milling to obtain the final product. The nanoscale Ni(OH)2 prepared by the method has a spherical or nearly spherical shape, and a beta-type crystal form. The maximum 1C discharge specific capacity of a Cd-Ni (cadmium-nickel) battery prepared from Co-doped spherical nanoscale Ni(OH)2 reaches 245 mAh/g, which is improved by 16% in comparison with that of Cd-Ni battery prepared from doped nonspherical nanoscale Ni(OH)2, and the cycle specific capacity is also improved remarkably. The discharge specific capacities of Zn-doped spherical nanoscale Ni(OH)2 and Al-doped spherical nanoscale Ni(OH)2 are also improved.

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