Template effect on structure and morphology of Ni(OH)2 powders prepared by hydro-chemical method |
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| Authors: | Liu Zhi-hong Li Qi-hou Xu Xiao-lin Guo Xue-yi and Zhang Duo-mo |
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| Affiliation: | (1) Department of Metallurgical Science and Engineering, Central South University of Technology, 410083 Changsha, China |
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| 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
4
2−
, 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.
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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| Keywords: | Ni(OH)2 structural control polyhedral structure of coordination anions growth units |
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