中文摘要：

α-亚麻酸在加热条件下通过胶束内聚合可转化为能够耐受高温水热环境的介观模板,用此硬模板在高温水热条件下直接合成了微孔-介孔二氧化硅及掺铝介孔二氧化硅.用X射线衍射（XRD）、氮气吸附及透射电镜等手段对材料进行了表征.结果表明,所得材料在沸水中处理5 d后仍保持670 m^2/g的比表面积.透射电镜和NLDFT孔径分析结果显示,所得材料同时具备介孔和微孔结构.^29Si MAS NMR谱图显示,完全缩聚的Q4型硅是材料中主要的硅组分,致使材料具有高的水热稳定性.

英文摘要：

High temperature condition is helpful to obtain hydrothermally stable mesoporous silica.In this paper,micro-mesoporous silica（designated as TCM-1） and Al-doped mesoporous silica（Al-TCM-1） were synthesized under high temperature.The self-assembly of α-linolenic acid,which transformed to a rigid mesophase template via inter-micelle polymerization,were successfully leveraged to fabricate hydrothermally stable mesoporous silicas that retained a BET surface area of 678 m^2/g after hydrothermal treatment in boiling water for 5 d.The 29Si MAS NMR spectra of as-calcined TCM-1 indicates Q4silicons[Q^n= Si（OSi）n（OH）4-n] are dominating,which can explain the high hydrothermal stability of the material.