以Cu(OH)2为前躯体,用葡萄糖还原制备了不同粒径的单分散球形氧化亚铜粉末.利用扫描电镜和smileview软件对Cu2O粉末进行了表征分析,并通过上述分析考察了反应温度和反应物浓度等因素对Cu2O粉末粒径的影响.结果表明,随着反应温度与葡萄糖投加浓度的提高,颗粒粒径减小;而随着氢氧化钠投加浓度的提高,颗粒粒径增大;体系内最终颗粒密度n+∞或颗粒个数n与各影响因素的变化呈直线关系.最后根据晶体成核生长模型初步分析了反应条件对Cu2O颗粒粒径的影响机理.%Monodispersed spherical Cu2O particles were prepared by reducing Cu(OH)2 with glucose. The products were characterized by XRD, SEM and Smileview software. It has been found when the reaction temperature and glucose concentration rose, the mean grain diameter of Cu2O was enlarged, and when NaOH concentration decreased, the mean grain diameter of Cu2O was reduced. The final particle density n+" was in liner relationship with the initial reaction rate controlling factors. The effects of reaction temperature and reactant concentrations on particle diameter of Cu2O powder were investigated and the mechanism of size control is discussed on basic theory of crystal nucleation and growth.
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