| 钙钛矿型层状化合物K_2Ln_2Ti_3O_(10)(Ln=La,Pr,Sm,Eu,Gd)X射线衍射晶体结构分析 |
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| 引用本文： | 史昆波,张莉莉. 钙钛矿型层状化合物K_2Ln_2Ti_3O_(10)(Ln=La,Pr,Sm,Eu,Gd)X射线衍射晶体结构分析[J]. 人工晶体学报, 2009, 38(6): 1532-1535 |
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| 作者姓名： | 史昆波 张莉莉 |
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| 作者单位： | 淮阴师范学院江苏省低维材料化学重点建设实验室,淮安,223300;淮阴师范学院江苏省低维材料化学重点建设实验室,淮安,223300 |
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| 摘 要： | 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.
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| 关 键 词： | K_2Ln_2Ti_3O_(10) X射线衍射 晶体结构 晶胞参数 |
XRD Analysis of Peroskite-type Larged Compound K_2Ln_2Ti_3O_(10) (Ln=La,Pr,Sm,Eu,Gd) |
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| SHI Kun-bo,ZHANG Li-li. XRD Analysis of Peroskite-type Larged Compound K_2Ln_2Ti_3O_(10) (Ln=La,Pr,Sm,Eu,Gd)[J]. Journal of Synthetic Crystals, 2009, 38(6): 1532-1535 |
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| Authors: | SHI Kun-bo ZHANG Li-li |
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| Abstract: | 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. |
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| Keywords: | K_2Ln_2Ti_3O_(10) K_2Ln_2Ti_3O_(10) X-ray diffraction crystal structure crystallographic data |
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