无机材料学报2018,Vol.33Issue(2):113-127,15.DOI:10.15541/jim20170255
多级孔沸石的孔结构调控合成及其催化应用研究进展
Research Progress on Hierarchically Porous Zeolites: Structural Control, Synthesis and Catalytic Applications
摘要
Abstract
Zeolite has an excellent ion-exchange property, rich acid sites and good structure and catalysis stability. Therefore,it has been widely used in many fields,i.e.,industrial catalysis,separation and adsorption,etc.However, the application of zeolite is greatly limited in many catalytic reactions involved in the large molecules due to its smaller micropore size (< 1.5 nm). The introduction of hierarchically porous structure into conventional zeolite crystals not only keeps their crystalline framework, acidic active sites and high thermal and hydrothermal stability, but also accelerates the diffusion/transfer of larger molecules and greatly decreases the formation of carbon residue, thus prolonging the catalyst life, which enables them more popular applications in the catalytic field. Herein, the recent research progresses of the control of pore structural, the synthesis strategy and mechanism of some typical kinds of hierarchically porous zeolites, including disordered mesoporous/macroporous structure, ordered mesopor-ous/macroporous structure, dual mesopore structure with certain orientation, hollow structure and macropor-ous-mesoporous-microporous structure,etc, are concluded. In addition, the application progresses of these hierar-chically porous zeolites in catalytic fields are summarized. Compared with the conventional zeolites and amorphous mesopore materials, the novel hierarchically porous zeolites show more excellent catalytic performance due to the crystalline framework and the introduce of hierarchically pore structure. Finally, an outlook for the hierarchically porous zeolite promising development in the future is put forward.关键词
多级孔/沸石/结构调控/大孔/介孔/微孔/催化应用/综述Key words
hierarchically porous/zeolite/structure control/macropore/mesopore/micropore/catalysis/review分类
化学化工引用本文复制引用
陈航榕,周晓霞,施剑林..多级孔沸石的孔结构调控合成及其催化应用研究进展[J].无机材料学报,2018,33(2):113-127,15.基金项目
国家重点基础研究计划(2013CB933200) (2013CB933200)
国家自然科学青年基金(51502330) (51502330)
高性能陶瓷和超微结构国家重点实验室项目(SKL201604) (SKL201604)
上海市国际合作项目(16520710200)National Program on Key Basic Research Project(2013CB933200) (16520710200)
National Natural Science Foundation of China(51502330) (51502330)
Project of State Key Laboratory of High Performance Ceramics and Superfine Microstructures(SKL201604) (SKL201604)
Shanghai International Cooperation Project(16520710200) (16520710200)