| 氧化硅柱层状镧钛酸盐的制备和表征 |
| PREPARATION AND CHARACTERIZATION OF A SILICA-PILLARED LAYERED LANTHANUM TITANATE |
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| 摘要: 本文报道通过先用正己胺盐酸盐水溶液与K2La2Ti3O10发生离子交换得到正己铵离子柱撑的层状镧钛酸盐，然后再与氨基丙基三乙氧基硅烷的正八面体多聚体作用，最后将层间的有机物焙烧分解掉后可得新型氧化硅柱层状镧钛酸盐。采用X射线衍射(XRD)、红外光谱(IR)、差热--热重分析(TG/DTA)、透射电子显微镜(TEM)和比表面测定等方法对该新材料进行了表征。结果表明，所得氧化硅柱层状镧钛酸盐具有很高的热稳定性(>800℃) |
| 关键词: 层状镧钛酸盐 氧化硅 柱撑 |
| 基金项目: |
| Abstract: A silica-pillared layered lanthanum titanate was prepared by first exchanging K2La2Ti3O10 with n-C6H13NH3Cl, then reacting with octa (3-aminopropylsilasesquioxane), and finally calcinating the obtained product in air to remove the interlayered organics. XRD, IR, TG/DTA, TEM, and specific surface area measurement were used to characterize the resultant silica-pillared layered lanthanum titanate. It was shown that the silica-pillared layered lanthanum titanate has a high thermal stability above 800℃, an interlayer distance of 1.73 nm (500℃) and a specific surface area of 43.0 m2g-1. |
| Keywords: layered lanthanum titanate silica pillaring |
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| 侯文华,王南平,郭灿雄,马军,颜其洁.氧化硅柱层状镧钛酸盐的制备和表征[J].无机化学学报,1997,13(2):186-190. |
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