沸石分子筛膜

The Si/Al ratio
the larger the Si/Al, the more hydrophobic is the pore space
Rangnekar, N., et al. (2015). “Zeolite membranes - a review and comparison with MOFs."
Schematic representation of the free-energy model
Smit, B. and T. L. Maesen (2008). “Towards a molecular understanding of shape selectivity."
Brønsted acid catalyst
Hierarchical zeolite membrane
Mark A. Snyder and Michael.T.(2007) Hierarchical Nanomanufacturing: From Shaped Zeolite Nanoparticles to High-Performance Separation Membranes
Smit, B. and T. L. Maesen (2008). “Towards a molecular understanding of shape selectivity."
Schematic representation of the free-energy model
Smit, B. and T. L. Maesen (2008). “Towards a molecular understanding of shape selectivity."
Self-assembly
di-isocyanates
Rangnekar, N., et al. (2015). “Zeolite membranes - a review and comparison with MOFs."
Langmuir–Blodgett (LB) technique
Zeolite membranes sub 1μm have been synthesized
Secondary growth
commercialization
Perspective
Exploitation of organic structure-directing agents (SDAs)
for new materials
The synthesis of zeolites without SDAs
Applications of zeolites.
Applications of zeolites
isomerization and the cracking of hydrocarbons Carbon capture and sequestration
Dehydrate organic solvents Conversion of Biomass Blood-clotting agent
Van Speybroeck, V., et al. (2015). "Advances in theory and their application within the field of zeolite chemistry."
Selectivity
a； Reactant shape selectivity b；Transition state shape selectivity c； Product shape selectivity
Li, L., et al. (2009). “Unambiguous observation of electron transfer from a zeolite framework to organic molecules."
Substitution to Si 、Al
Dealuminzation change the density of acid sites
Structure conversion
Van Speybroeck, V., et al. (2015). "Advances in theory and their application within the field of zeolite chemistry."
Doping
Ti,Sn, Ga,Zr
Zeolite hollow fibers
Ying Yan, Songshan Jiang, Huiping Zhang, Xinya Zhang Preparation of novel Fe-ZSM-5 zeolite membrane catalysts for catalytic wet peroxide oxidation of phenol in a membrane reactor
Van Speybroeck, V., et al. (2015). "Advances in theory and their application within the field of zeolite chemistry."
Zeolite structures of the ‘Big Five’ and other applications
References
1.Davis, M. E. (2014). "Zeolites from a Materials Chemistry Perspective." Chemistry of Materials 26(1): 239-245. 2.Iyoki, K., et al. (2014). "Progress in seed-assisted synthesis of zeolites without using organic structure-directing agents." Microporous and Mesoporous Materials 189: 22-30. 3.Li, L., et al. (2009). “Unambiguous observation of electron transfer from a zeolite framework to organic molecules." Angew Chem Int Ed Engl 48(36): 6678-6682. 4.Rangnekar, N., et al. (2015). “Zeolite membranes - a review and comparison with MOFs." Chem Soc Rev 44(20): 7128-7154. 5.Smit, B. and T. L. Maesen (2008). “Towards a molecular understanding of shape selectivity." Nature 451(7179): 671-678. 6.van der Bij, H. E. and B. M. Weckhuysen (2015). "Phosphorus promotion and poisoning in zeolite-based materials: synthesis, characterisation and catalysis." Chem Soc Rev 44(20): 7406-7428. 7.Van Speybroeck, V., et al. (2015). "Advances in theory and their application within the field of zeolite chemistry." Chem Soc Rev 44(20): 7044-7111. 8.Wang, Z., et al. (2014). "Fabrication of a highly b-oriented MFI-type zeolite film by the Langmuir-Blodgett method." Langmuir 30(16): 4531-4534. 9.Zhang, C., et al. (2012). “Catalytic MFI zeolite membranes supported on α-Al2O3 substrates for m-xylene isomerization." Journal of Membrane Science 389: 451-458. 10. Miao Y, Richard D. Noble, and John L. Falconer .(2011) “Zeolite Membranes: Microstructure Characterization and Permeation Mechanisms.” Accounts of chemical research Vol. 44: 1196–1206
Pierre Y. Dapsens, Cecilia.(2015) “Design of Lewis-acid centres in zeolitic matrices for the conversion of renewables. “
Mechanisms of zeolite synthesis
Wang, Z., et al. (2014). "Fabrication of a highly b-oriented MFI-type zeolite film by the Langmuir-Blodgett method."
Recyclable SDA
Davis, M. E. (2014). "Zeolites from a Materቤተ መጻሕፍቲ ባይዱals Chemistry Perspective."
Catalytic zeolite membrane
报告人
潘高峰
报告时间 2015.12.15
Main points
1. 2. 3. Structures and mechanisms Applications Synthesis and perspective
Structures
There are 225 kinds of zeolite have been synthesized, Since 2.5 billion kinds of zeolite structures in theory
The use of two organic molecules
Davis, M. E. (2014). "Zeolites from a Materials Chemistry Perspective."
Gel-free secondary growth
Rangnekar, N., et al. (2015). “Zeolite membranes - a review and comparison with MOFs."
Flexibility
Influence of the defect
Miao Y, Richard D. Noble, and John L. Falconer .(2011) “Zeolite Membranes: Microstructure Characterization and Permeation Mechanisms.”
van der Bij, H. E. and B. M. Weckhuysen (2015). "Phosphorus promotion and poisoning in zeolite-based materials: synthesis, characterisation and catalysis."
Structure directing agent (SDA) Thermodynamic analysis
Quantum chemistry
Density Functional Theory
Predict and design
Van Speybroeck, V., et al. (2015). "Advances in theory and their application within the field of zeolite chemistry."
Pervaporation Sensing of molecules
catalytic membrane reactors
Synthesis of zeolite membrane and perspective
Methods
Hydrothermal synthesis
Aim
Better performance
He synthesis of very hydrophobic materials Hierarchically organized materials Zeolite hollow fibers
Secondary growth
Rangnekar, N., et al. (2015). “Zeolite membranes - a review and comparison with MOFs."