两步软化学水热法合成钛酸锶及表征  

Synthesis and Characterization of Perovskite Strontium Titanate by Two-step Soft Chemical Method

作　　者：景越 宗喆昊 王佳 张沙沙 赵旭阳 程婷婷 董梦卓 王瑛 赵卫星 姜红波 Jing Yue;Zong Zhehao;Wang Jia;Zhang Shasha;Zhao Xuyang;Cheng Tingting;Dong Mengzhuo;Wang Ying;Zhao Weixing;Jiang Hongbo(Faculty of Chemistry and Chemical Engineering,Baoji University of Arts and Sciences,Baoji 721013;Key Laboratory of Functional Ceramic Materials of Baoji,Baoji 721013;Shaanxi Material Energy Additive Electronic Technology Co.,Ltd.,Xixian 712000,China)

机构地区：[1]宝鸡文理学院化学化工学院,陕西宝鸡721013 [2]宝鸡市先进功能材料重点实验室,陕西宝鸡721013 [3]陕西材能增材电子科技有限公司,陕西西咸712000

出　　处：《广东化工》2023年第8期18-20,共3页Guangdong Chemical Industry

基　　金：教育部产学合作协同育人项目(220606537021220);陕西省重点研发计划项目资助(2020KW-041);陕西省留学人员科技活动择优资助项目(2020013);宝鸡文理学院2021年大学生创新创业训练计划项目(2021XJ103)。

摘　　要：本研究采用两步软化学水热合成法合成钛酸锶。首先,采用水热法合成层状钛酸锂钾K_(0.8)Ti_(1.73)Li_(0.27)O_(4)(KTLO)片状前驱体,再对KTLO进行两次酸交换反应,即可得到一种层状固体钛酸H_(1.07)Ti_(1.73)O_(4)·nH_(2)O(HTO)。其次,将固体钛酸HTO置于Sr(OH)_(2)溶液中进行溶剂热处理,随即可得到钛酸锶。采用X射线衍射(XRD)、场发射扫描电镜(FE-SEM)和激光拉曼光谱仪对其的组分、结构、形貌等进行分析和表征。Strontium titanate was synthesized by two-step soft chemical method.Firstly,the layered solid titanate H_(1.07)Ti_(1.73)O_(4)·nH_(2)O(HTO)was obtained by acid exchange of KTLO twice,which was synthesized by hydrothermal method.Secondly,SrTiO_(3)nanoparticles were prepared by solvent heat treatment in Sr(OH)_(2) solution with HTO as precursor.X-ray diffraction(XRD),field emission scanning electron microscopy(FE-SEM)and laser Raman spectroscopy were used to analyze the composition,structure and morphology of the product.

关 键 词：钛酸锶 钙钛矿 软化学 表征 水热法 

分 类 号：TQ174.1[化学工程—陶瓷工业]