钙钛矿型层状化合物K_2Pr_2Ti_3O_(10)的合成及XRD研究  

Synthesis and XRD Analysis of K_2Pr_2Ti_3O_(10) Series

作　　者：史昆波[1] 张莉莉[2] 杨雁玲[1] 

机构地区：[1]淮阴师范学院分析测试中心,淮安223300 [2]淮阴师范学院化学系,淮安223300

出　　处：《人工晶体学报》2007年第1期213-216,174,共5页Journal of Synthetic Crystals

基　　金：江苏省高校自然科学研究指导性计划项目(04KJD150034)

摘　　要：在K2CO3-镧系元素氧化物(Pr2O3)-TiO2三元体系中,用固相反应法合成K2Pr2Ti3O10,利用X射线粉晶衍射仪对K2Pr2Ti3O10进行扫描测定,获得X射线衍射数据,进行指标化,得到其晶胞参数。XRD分析结果表明,K2Pr2Ti3O10为四方晶系,空间群I4/mmm。Series of layered perovskites K2Pr2Ti3O10 was fabricated by solid state reaction in K2CO3- Pr2O3-TiO2 system. The obtained products were characterized by X-ray diffraction （XRD） techniques. The crystal structure of K2Pr2Ti3O10 series had been analyzed and the crystal parameters and indexed dates were obtained. From the XRD results, it was found that the K2Pr2Ti3O10 belongs to tetragonal crystal lattice and has 14/mmm space group.

关 键 词：K2Pr2Ti3O10 X射线衍射 晶体结构 晶胞参数 

分 类 号：O78[理学—晶体学]