摘要
利用Fe(OH)(HCOO)2和Ba(CH3COO)2为原料,C7H8O7.H2O为螯合剂,制得了均一的柠檬酸盐前驱体溶液,将所得的溶液进行喷雾干燥制得了含铁和钡的柠檬酸盐粉体。以制得的粉体为固相反应的前驱体,通过简单的固相分解反应制得了片状的BaFe12O19纳米粉体。同时利用高沸点的液体石蜡对前驱体进行预处理,进一步热分解,得到棒状的BaFe12O19纳米粉体。对前驱体进行了红外(IR)表征。利用热重(TG)技术和X射线粉末衍射(XRD)技术跟踪了前驱体的热分解过程并对所得产物的物相进行了确定。所得产物的形貌由透射电镜(TEM)给出。
Using Fe （OH）（HCOO）2 and Ba （CH3COO）2 as the raw material, citrate as the chelate, a homogeneous aqueous solution was obtained. The obtained solution was subjected to spray-drying process, and citrate complex containing Fe and Ba was obtained as the solid-state precursors. The BaFe12O19 nanolamellas were prepared from a facile thermal pyrolysis of the solid-state precursors. At the same time, the obtained solid-state precursors were pretreated with paraffin, and then subjected to thermal decomposition to give BaFe12 O19 nanorods with minor nanolamellas. The solid-state precursors were characterized by IR. The development of the precursors to the products was studied by TG and XRD. Morphology observation of the fibers was given on TEM.
出处
《化学工业与工程》
CAS
2007年第4期299-303,共5页
Chemical Industry and Engineering
基金
天津大学青年教师基金资助项目(5110103)
河北工业大学博士科研启动基金资助项目
关键词
钡铁氧体
纳米粉体
合成
barium ferrite
nanopartieles
synthesis
