固相反应法合成了具有钙钛矿型层状的化合物K_2Eu_2Ti_3O_(10) 和K_2Gd_2Ti_3O_(10) ,利用X射线粉晶衍射仪对镧系元素的钙钛矿型层状化合物K_2Ln_2Ti_3O_(10) (Ln=Eu,Gd)进行结构分析,获得其X射线粉晶衍射数据.X射线衍射分析结果表明:K_2Ln_2Ti_3O_(10) (Ln= La,Pr,Sm,Eu,Gd )为四方晶系,空间群I4/mmm.并得到其晶胞参数及其镧系元素的钙钛矿型层状化合物K_2Ln_2Ti_3O_(10) 晶体结构变化规律.
Series of layered perovskites K_2Eu_2Ti_3O_(10) and K_2Gd_2Ti_3O_(10) was fabricated by solid state reaction.The obtained products were characterized by X-ray diffraction (XRD) and inductively coupled plasma (ICP) techniques. The crystal structure of K_2Ln_2Ti_3O_(10) (Ln=Eu,Gd) series has been analyzed and the crystal parameters and indexed dates were obtained. The XRD results indicated that the K_2Ln_2Ti_3O_(10) (Ln=La,Pr,Sm,Eu and Gd) belonged to tetragonal crystal lattice and had I4/mmm space group, unit cell parameter. The cell parameters and the evolution of K_2Ln_2Ti_3O_(10) were gained.
参考文献
| [1] | Gopalakrishnan J;Vasodeva B .A_2La_2Ti_3O_(10)(A=K or Rb;Ln=La or Rare Earth):A New Series of Layered Perovskites Exhibiting Ion Exchange[J].Inorganic Chemistry,1987,26:4299-4301. |
| [2] | Song-Ho Byeon;Hyo-Jin Nam .Neutron DIffraction and FT-Raman Study of Ion-Exchangeable Layered Titanates and Niobates[J].Chemistry of Materials,2000(6):1771-1778. |
| [3] | 史昆波,张莉莉,杨雁玲.钙钛矿型层状化合物K2Pr2Ti3O10的合成及XRD研究[J].人工晶体学报,2007(01):213-216,174. |
| [4] | 史昆波,张莉莉.钙钛矿型层状化合物K2Sm2Ti3O10的合成及XRD表征[J].分析测试学报,2009(02):190-193. |
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