碱式碳酸锌非等温热分解动力学研究  

Study on the non-isothermal decomposition kinetics of basic zinc carbonate

作　　者：孙毅[1] 申晓毅[1] 翟玉春[1] 

机构地区：[1]东北大学材料与冶金学院,辽宁沈阳110819

出　　处：《分子科学学报》2012年第1期17-22,共6页Journal of Molecular Science

基　　金：国家重点基础研究发展计划资助项目(2007CB613603)

摘　　要：采用TG-DTA曲线分析研究了碱式碳酸锌在氮气气氛中的热分解反应动力学,利用Doyle-Ozawa法和Kissinger法对碱式碳酸锌非等温热分解动力学数据进行了分析,同时运用Satava-Sestak法研究了碱式碳酸锌的热分解机理.结果表明,碱式碳酸锌的热分解反应服从随机成核和随后生长机理.The decomposition kinetics of basic zinc carbonate in nitrogen atmosphere was investigated in dependence on TG-DTA analysis under different heating rates. The non-isothermal kinetic parameters were acquired by means of Doyle-Ozawa and Kissinger method respectively, and the thermal decompo- sition mechanism of basic zinc carbonate was also analyzed with the Satava-Sestak method. The results showed that the reaction obeyed random nucleation and subsequent growth mechanism.

关 键 词：碱式碳酸锌 ZNO 热分解 TG—DTA分析 

分 类 号：O643[理学—物理化学]