BAPO-5分子筛的合成与表征

被引：3

作者：

冯利利

朱岳麟

齐兴义

李征

机构：

[1] 北京航空航天大学材料科学与工程学院

来源：

石油化工高等学校学报 | 2008年 / 01期

关键词：

硼; 杂原子; 铝磷酸盐分子筛;

D O I：

暂无

中图分类号：

O643.3 [催化];

学科分类号：

081705 ;

摘要：

采用静态水热合成法,活性胶液中各组分摩尔比为n(B2O3)/n(Al2O3)/n(P2O5)/n(模板剂)/n(H2O)=x:y:1.5:2:240合成了系列硼铝磷酸盐分子筛BAPO-5。利用XRD,SEM,BET,FT-IR和MAS-NMR等方法对BAPO-5分子筛进行了多角度表征。结果表明,当活性胶液中0<n(B2O3)/n(Al2O3)<0.08时,可合成出不同硼含量的BAPO-5,BAPO-5与未添加杂原子B的AlPO4-5具有相同的晶体结构;BAPO-5的比表面积和比孔容均随B含量的增加而增大,表明BAPO-5中的硼为分子筛的骨架阳离子元素;BAPO-5骨架中的Al和P的配位环境为AlO4和PO4,杂原子B的引入并未引起分子筛的骨架阳离子元素Al和P的配位环境和结构类型的改变;此外,合成的BAPO-5具有规整的六方棱柱晶体外形。

引用

页码：12 / 15+20 +20

页数：5

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