摘要
采用3种不同碳链长度的季铵盐型表面活性剂CnTAB(n=12、14、16),成功合成了具有不同孔径的MCM-48分子筛。XRD结果表明,所合成的分子筛均具有MCM-48的特征衍射峰,且结晶度良好;N2吸附-脱附实验表明,所得MCM-48的孔径实现了在1.86～2.60nm之间的调变,且其均有大于1200m2/g的比表面积。
A series of highly ordered cubic siliceous MCM-48 were synthesized by using the alkylammonium salts C,,TAB （n = 12, 14, 16） with different alkyl chain lengths as templates. The as-synthesized materials were characterized by XRD and N2 sorption. A typical intense peak for cubic cells and a type IV nitrogen adsorption isotherm were obtained. Moreover, the as-synthesized MCM-48 materials had a large BET surface area （ 〉 1200m^2/g） and a narrow pore size distribution （in the range of 1.86-2.60nm）.
出处
《化学通报》
CAS
CSCD
北大核心
2008年第9期710-713,共4页
Chemistry
基金
国家自然科学基金项目(20773069)资助
