Abstract
The template effect controlling the structure and morphology of ultrafine particles was described. Ni(OH)2 powders were prepared by NH3 coordination-precipitation method. The effects of SO 2−4 , NO −3 , Cl−, NH3, pH value on Ni(OH)2 structure and morphology were investigated experimentally, explained with the theoretical model that the growth units were the polyhedral structure of coordination anions. The results showed that the structure and morphology of Ni(OH)2 were effectively controlled by the growth units, the dimensions and the linking patterns of the growth units vary with the changes of physical and chemical conditions in the aqueous solution.
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Foundation item: The National Natural Science Foundation of China(No.59774018)
Biography of the first author: LIU Zhi-hong, professor, born in 1963, majoring in hydrometallurgical technology and control of structure and morphology of powders.
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Liu, Zh., Li, Qh., Xu, Xl. et al. Template effect on structure and morphology of Ni(OH)2 powders prepared by hydro-chemical method. J Cent. South Univ. Technol. 7, 20–24 (2000). https://doi.org/10.1007/s11771-000-0006-z
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DOI: https://doi.org/10.1007/s11771-000-0006-z