低含氧量复合氟化物的溶剂热合成及表征  

Solvothermal synthesis and characterization of complex fluorides with lower oxygen content

作　　者：华瑞年[1] 谢德民[1] 石春山[2] 

机构地区：[1]东北师范大学化学学院,吉林长春130024 [2]中国科学院长春应用化学研究所,吉林长春130022

出　　处：《分子科学学报》2003年第3期127-133,共7页Journal of Molecular Science

基　　金：国家自然科学基金资助项目(50072031);国家重点基础研究发展规划资助项目.

摘　　要：　通过溶剂热法合成出钙钛矿结构复合氟化物KMF3(M=Mg,Zn,Co,Ni)及LiBaF3.用乙二醇做溶剂合成LiBaF3,KMgF3和KNiF3,反应物摩尔比均为1∶1,反应温度180℃,反应时间分别为4,1和1d;用乙醇做溶剂合成KZnF3和KCoF3,反应物摩尔比为2∶1和1∶1,反应温度为180℃,反应时间均为1d.用XRD,SEM,TGA,IR及XPS等手段对产物进行了表征.The complex fluorides KMF3(M=Mg,Zn,Co and Ni) and LiBaF3 with perovskite structures were solvothermally synthesized and characterized by means of Xray powder diffraction,scanning electron microscopy,thermogravimetric analysis,infrared spectroscopy and Xray photoelectron spectrometry.In the synthesis of LiBaF3,KMgF3 and KNiF3,the ratios of initial composition are 1∶1,and ethylene glycol was used as solvent.The reaction temperature is 180℃ and the reaction time are 4 days,1 day and 1 day,respectively.In the synthesis of KZnF3 and KCoF3,the ratios of initial composition are 2∶1 and 1∶1,respectively.Ethanol was used as solvent.The reaction temperature is 180℃ and the reaction time are 1 day and 1 day,respectively.

关 键 词：复合氟化物 溶剂热合成 表征 KMF3 LiBaF3 钙钛矿 光电子能谱 热重分析 

分 类 号：O613.41[理学—无机化学]