摘要
采用不同升温速率的差热分析研究空气气氛中锰酸锂前驱体分解的反应. 利用Doyle- Ozawa法和Kissinger法计算各反应阶段的表观活化能. X射线衍射、粒度分析、扫描电镜和透射电镜分析表明,共沉淀法和煅烧法相结合制备的LiMn2O4物相纯净,粒度分布均匀,形貌规整.
The decomposition kinetics of lithium manganese oxides precursor in air atmosphere was investigated at different heating rates with differential temperature analyses. The apparent activation energy of each stage was calculated using the Doyle-Ozawa and Kissinger methods. X-ray diffraction, granularity analysis, scanning electron microscopy and transmission electron microscopy showed that the LiMn2O4 phase was pure, with regular appearance and a uniform granularity distribution.
出处
《过程工程学报》
CAS
CSCD
北大核心
2003年第1期29-33,共5页
The Chinese Journal of Process Engineering
基金
西安交通大学自然科学基金资助项目(编号:09005730331)
辽宁省自然科学基金资助项目(编号:9810300702)
关键词
锰酸锂前驱体
表征
分解动力学
lithium manganese oxides precursor
characteristics
decomposition kinetics
