介孔分子筛研究新进展

Progress in mesoporous molecular sieves

介孔分子筛材料作为催化剂或催化剂载体为有机大分子参与反应提供了有利的空间构型和择形活性中心,在石油加工工业中具有潜在的应用优势。但由于介孔分子筛材料的水热稳定性比较低,且酸性较弱,极大地影响了其在催化领域中的广泛应用。本文综述了近年硅基介孔分子筛的改性研究进展,重点讨论了在提高介孔分子筛酸性和水热稳定性方面的研究工作。

Mesoporous molecular sieves have attracted considerable attention because of their potential use as versatile catalysts and catalyst supports for the conversion of large molecules.However,the acidity and hydrothermal stability of these mesostructured materials are relatively low compared with those of zeolites,which strongly influences their practical applications in industrial catalytic reactions of petroleum.In this review,progress made in the improvement of acidity and hydrothermal stability for mesoporous molecular sieves were summarized.