摘要
报道了纳米氧化铁的制备工艺 ,采用沉淀法、溶胶凝胶法制备了纳米α -Fe2 O3 、γ -Fe2 O3 粉体 ,用热重 -差热分析 (TG -DTA)、X射线衍射 (XRD)、透射电镜 (TEM )和二次粒度分布对粒子进行表征 ,并制作了气体敏感元件。讨论了纳米氧化铁的制备工艺对气敏性质的影响。
This paper summarizes the preparation methods and gas-sensing properties of nanosized Fe 2O 3.Nanosized α -Fe 2O 3, γ -Fe 2O 3 powder are prepared by precipitation and sol-gel method.Phase composition,grain size,particle size distribution of Fe 2O 3.Samples are studied by TG-DTA?XRD?TEM and Zetasize distribution.With emphasis on the study of gas-sensing characteristics of nanocrystalized Fe 2O 3,the application future of nanosized Fe 2O 3 at last is presented.
出处
《化工进展》
EI
CAS
CSCD
北大核心
2002年第8期579-581,584,共4页
Chemical Industry and Engineering Progress
