Template Effect on Structure and Morphology of Ni(OH)₂ Powders Prepared by Hydro-chemical Method

来源期刊：中南大学学报(英文版)2000年第1期

论文作者：LIU Zhi-hong LI Qi-hou XU Xiao-lin GUO Xue-yi ZHANG Duo-mo

文章页码：20 - 24

Key words：Ni(OH)₂; structural control; polyhedral structure of coordination anions; growth units

Abstract: The template effect controlling the structure and morphology of ultrafine particles was described. Ni(OH)2powders were prepared by NH3coordination-precipitationmethod. 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 varywith the changes of physical and chemical conditions in the aqueous solution.