| 高比表面Al2O3柱撑纳米钛酸盐的制备 |
| Preparation of Al2O3Pillared Nanoscale Titanate with High Surface Area |
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| 摘要: |
| 关键词: 层状钛酸盐 柱撑 比表面积 孔径分布 |
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| Abstract: Nanoscale layered K2Ti4O9 was prepared by solid-state method using nanoscale TiO2 with average particle size of 20 nm as the raw material. The obtained nanoscale K2Ti4O9 was further used as the host material for the preparation of Al2O3pillared K2Ti4O9 and the K2Ti4O9 was undergone H+-exchange, alkylamine-pre-expansion, Keggin-pillaring and heat-treatment. The products were characterized by XRD, TEM and BET methods. The interlayer distance of K2Ti4O9 was expanded step by step during the pillaring procedure and the Al2O3pillared H2Ti4O9 with narrow pore-size distribution and high surface area (212.8 m2·g-1) was obtained. |
| Keywords: layered titanate pillaring surface area pore-size distribution |
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| 杨 娟,丁建芳,张莉莉,陆路德,汪 信.高比表面Al2O3柱撑纳米钛酸盐的制备[J].无机化学学报,2004,20(12):1459-1462. |
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