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Al柱层状钛铌酸盐的制备
Synthesis of Al2O3-pillared Layered Titanoniobate
【摘要】 本文采用分步交换法,首次将[Al13O4（OH）24（H2O）12]7+Keggin离子交换进入到层状金属钛铌酸盐（KTiNbO5）的层间,通过焙烧,制备了以Al2O3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℃）.
【Abstract】 Layered titanoniobate complex pillared with [Al13O4(OH)24(H2CO12]7+ Keggin ions has been prepared through a stepwise exchange process. By calcinating this complex in air, the first alumina-pillared layered titanoniobate was obtained. The resultant pillared complex has a thermal stability over 500℃ and retains an interlayer distance of 1.34nm after heating at 500℃ in air.
【关键词】 层状钛铌酸盐；
[Al13O4(（OH）24)（H2O）12]7+Keggin离子；
制备；
- 【文献出处】 化学学报 ,Acta Chimica Sinica , 编辑部邮箱 ,1994年02期
- 【分类号】O614
- 【被引频次】16
- 【下载频次】99