摘要
在Na_2O-CaO(MgO)-Al_2O_3-B_2O_3-R-H_2O体系中用水热法合成了2种新型的微孔硼铝酸盐。XRD、IR和XPS分析表明,它们具有新的骨架结构。在一定温度下脱除结构中的游离水及其它分子后,所得产物表现出特征的分子筛吸附性能。吸附性能的测定结果及孔径分布的计算表明,其孔径大小在5~6之间。
Two novel microporous alumino-borates were synthesized from Na2O-CaO(MgO)-Al2O3-R2O3-R-H2O systems. X-Ray diffraction analysis(XRD), IR spectra and X-Ray photo-electron spec-troscopy analyses (XPS) show that the alumino-borates have novel framework structures. They exhibit charateristic adsoption properties like that of zeolite after the desorption of free water and other molecules within their structures. It is also shown that the micropore size of the alumino-borates are between 5-6A.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1990年第5期449-453,共5页
Chemical Journal of Chinese Universities
关键词
硼铝酸盐
分子筛
合成
结构
Alumino-borates, Molecular sieves, Synthesis