摘要
以硫酸锌、碳酸氢铵为主要原料，采用直接沉淀法制备出纳米氧化锌粉体。对前驱体进行DSC-TG分析，对煅烧样品进行x射线衍射（XRD）分析，利用谢乐公式计算晶粒度。结果显示，前驱体在300℃时基本分解完毕；550℃煅烧可制备出结晶良好、35-45nm的氧化锌粉体；提高沉淀反应的温度能降低纳米ZnO粉体的粒度。
Using ZnSO4.7H2O and NH4HCO3 as the main raw materials, nanometer ZnO powder was prepared by using direct precipitation method. DSC-TG analysis was performed on the precursor, XRD was carded out to analyze the phase composition of the calcined samples, and the Scherrer formula was used to calculate the grain size of ZnO. The results show that all precursor decomposed at 300℃. The well grown ZnO crystals, with the size between 35 and 45nm, were obtained when the precursor was calcined at 550℃. In addition, the size of ZnO grain reduced with the increasing of reaction temperature.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2007年第A06期2079-2080,共2页
Journal of Functional Materials
关键词
ZNO
纳米粉体
碳酸氢铵
zinc oxide
nanometer powder
ammonium acid carbonate
