摘要
Polymorphic calcium zincate has been successfully synthesized in alkaline solution at various concentrations as well as at different temperatures. SEM images indicated that the concentration of the alkaline solution affected significantly the morphology of the calcium zincate crystal. Calcium zincate crystalline changed from regular parallelogram to unregular small crashed grains at a higher alkali concentration. And hexagonal calcium zincate crystal was obtained at higher reaction temperature. The stoichiometric composition for calcium zincate was Ca(OH)2·2Zn(OH)2·(2n-2)H2O as analyzed by TG, where n decreased with the increase of the alkaline concentration. XRD analysis showed that the temperature affected differently the growth of each face of the crystal, which led to the hexagonal shape of calcium zincate crystal.
Polymorphic calcium zincate has been successfully synthesized in alkaline solution at various concentrations as well as at different temperatures. SEM images indicated that the concentration of the alkaline solution affected significantly the morphology of the calcium zincate crystal. Calcium zincate crystalline changed from regular parallelogram to unregular small crashed grains at a higher alkali concentration. And hexagonal calcium zincate crystal was obtained at higher reaction temperature. The stoichiometric composition for calcium zincate was Ca(OH)(2).2Zn(OH)(2).(2n-2)H2O as analyzed by TG, where n decreased with the increase of the alkaline concentration. XRD analysis showed that the temperature affected differently the growth of each face of the crystal, which led to the hexagonal shape of calcium zincate crystal.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2005年第2期265-269,共5页
Chinese Journal of Inorganic Chemistry
