介孔沸石及其催化应用

Mesoporous zeolites and their catalytic performance

介孔沸石最近成为催化材料研究领域的热点课题,这主要是由于它集合了介孔材料以及微孔沸石的优点.早期的介孔沸石合成方法主要是使用后处理,包括水热处理、酸处理或者碱处理.近年来模板的使用成为合成介孔沸石的主要方法,主要包括介孔碳模板、高分子聚合物、有机硅烷以及纳米无机物等.本文就模板法合成介孔沸石的进展及其在催化领域方面的应用进行综述,并探讨今后介孔沸石的研究发展方向.

Mesoporous zeolites has been paid much attention due to their combining advantages of mesoporous materials and zeolites crystals.Mesoporous zeolites were prepared via post-treatment in the initial stage including hydrothermal treat,acid treat and base treat etc.Recently,templating routes for synthesis of mesoporous zeolites have been well developed and the templates refer to nanostructured carbons,mesoscale cationic polymers,mesoscale organosilanes,nanosized inorganic materials etc.This review describes the synthetic routes for preparation of mesoporous zeolites by various templates and systemically summarizes their catalytic properties.