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化工进展  2015 

多级孔道ZSM-5分子筛的合成及其催化应用

DOI: 10.16085/j.issn.1000-6613.2015.09.016

Keywords: 多级孔道分子筛,ZSM-5,后处理,硬模板,软模板

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Abstract:

多级孔道ZSM-5分子筛具有微孔沸石分子筛良好的择形催化性能和介孔材料优异的传质扩散性能,在催化领域显示出良好的应用前景。本文综述了近年来多级孔道ZSM-5分子筛的研究进展,重点介绍了多级孔道ZSM-5分子筛的不同合成方法,包括后处理法、硬模板法和软模板法等,同时介绍了不同方法得到的多级孔道ZSM-5分子筛在催化反应中的应用,分析表明多级孔道ZSM-5分子筛以其良好的扩散性能和适宜的酸性提高了反应转化率和目标产物选择性。最后对多级孔道ZSM-5分子筛的发展方向进行了展望,指出研发简单、经济和环保的新合成路线是多级孔道ZSM-5分子筛发展中的重大挑战,深入研究多级孔道分子筛中介孔的形成机理和开发具有多级孔道整体式催化剂以及负载型多级孔道ZSM-5分子筛是今后的研究重点。

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