化学学报 ›› 1994, Vol. 52 ›› Issue (2): 166-170. 上一篇    下一篇

研究论文

Al柱层状钛铌酸盐的制备

侯文华;彭秉成;颜其洁;傅献彩   

  1. 南京大学化学系
  • 发布日期:1994-02-15

Synthesis of Al~2O~3-pillared layered titanoniobate

HOU WENHUA;PENG BINGCHENG;YAN QIJIE;FU XIANCAI   

  • Published:1994-02-15

本文采用分步交换法,首次将[Al~1~3O~4(OH)~2~4(H~2O)~1~2]^7^+Keggin离子交换进入到层状金属钛铌酸盐(KTiNbO~5)的层间.通过焙烧,制备了以Al~2O~3 为柱的层状金属化合物.该化合物具有较高的热稳定性(>500℃)和比较大的层间距(d=1.34nm,500℃)

关键词: 氧化铝, 离子交换, 钛酸盐, 铌酸盐, 八面体, KEGGIN

Layered titanoniobate complex pillared with [Al13O4(OH)24(H2O)12]7+ Keggin ions was prepared through a stepwise exchange process. By calcining this complex in air, the 1st alumina-pillared layered titanoniobate was obtained. The resultant pillared complex has a thermal stability over 500?and retains an interlayer distance of 1.34 nm after heating at 500?in air.

Key words: ALUMINIUM OXIDE, ION EXCHANGING, TITANATE, NIOBATE, OCTAHEDRAL

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