Hydrothermal synthesis of zeolite Rho using methylcellulose as the space-confinement additive
Source abstract
Abstract
Abstract Pure zeolite Rho has been synthesized by the hydrothermal method using CsOH and 18-crown-6 ether as the template agent and methylcellulose (MC) as the space-confinement additive. XRD, SEM, FT-IR and TGA-DTA techniques were applied to characterize the obtained zeolite Rho powders. The results indicate that the addition of MC is able to promote the overall crystallization rate of zeolite Rho and simultaneously to control the particles to a size smaller than 1 μm and a uniform size distribution. However, a higher calcination temperature, i.e. around 600 °C is also required to remove the water and organic species occluded in the zeolite precursor.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Zeolite Catalysis and Synthesis · Metal-Organic Frameworks: Synthesis and Applications · Chemical Synthesis and Characterization
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (26)
Show source-provided references
1. The structure of cesium-exchanged zeolite-Rho at 293K and 493K determined from high resolution neutron powder data10.1016/0025-5408(83)90062-4 ↗
2. Flexibility of the zeolite Rho framework, in situ X-ray and neutron powder structural characterization of divalent cation-exchanged zeolite Rho10.1021/ja00168a029 ↗
3. Flexibility and cation distribution upon lithium exchange of aluminosilicate and aluminogermanate materials with the Rho topology10.1021/cm990179g ↗
4. Synthesis and structure of a microporous aluminogermanate with the zeolite Rho topology10.1016/S1387-1811(98)00294-7 ↗
5. Synthesis of dimethylamine by zeolite Rho: a rational basis for selectivity10.1016/0021-9517(90)90024-E ↗
6. Methylamines synthesis: a review10.1016/S0920-5861(97)00003-5 ↗
7. The effect of the adsorption properties of steamed zeolite Rho on its methanol amination activity10.1016/S1387-1811(99)00217-6 ↗
8. Improved selectivity to lower substituted methylamines using hydrothermally treated zeolite Rho10.1016/S0920-5861(98)00428-3 ↗
9. Catalytic evaluation of small-pore molecular sieves with different framework topologies for the synthesis of methylamines10.1016/j.apcata.2006.02.044 ↗
10. Ruthenium-containing small-pore zeolites for shape-selective catalysis10.1016/j.micromeso.2007.02.046 ↗
11. Encapsulation studies of hydrogen on cadmium exchanged zeolite Rho at atmospheric pressure10.1016/S0920-5861(96)00024-7 ↗
12. Hydrogen adsorption in zeolites A, X, Y and Rho10.1016/S0925-8388(03)00368-2 ↗
13. Hydrogen storage in ion-exchanged zeolites10.1016/j.jallcom.2004.12.193 ↗
14. Adsorption of carbon dioxide and nitrogen on zeolite rho prepared by hydrothermal synthesis using 18-crown-6 ether10.1016/j.jcis.2012.02.038 ↗
15. Molecular sieves
16. Selective N,N-methylation of aniline over cocrystallized zeolites Rho and zeolite X (FAU) and over Linde type L (Sr, K-LTL)
17. Synthesis and characterization of high-silica zeolite RHO prepared in the presence of 18-crown-6 ether as organic template10.1016/0927-6513(95)00009-X ↗
18. Crystallization process of zeolite rho prepared by hydrothermal synthesis using 18-crown-6 ether as organic template10.1016/j.jcis.2012.02.038 ↗
19. Cesium-free synthesis of aluminosilicate Rho zeolite in the presence of cationic polymer10.1016/j.micromeso.2010.03.012 ↗
20. Nanosized zeolite crystals—convenient control of crystal size distribution by confined space synthesis10.1039/a901228a ↗
21. Ion conductivity of nano-scaled Al-rich ZSM-5 synthesized in the pores of carbon black10.1016/j.micromeso.2008.08.057 ↗
22. Synthesis of template-free zeolite nanocrystals by using thermoreversible polymer hydrogels10.1021/ja036071q ↗
23. Zeolite crystallization in crosslinked chitosan hydrogels: crystal size control and chitosan removal10.1016/j.micromeso.2008.04.032 ↗
24. Gel network structure of methylcellulose in water10.1021/la010917r ↗
25. Fabrication of granulated NaY zeolite nanoparticles using a new method and study the adsorption properties10.1016/j.powtec.2012.06.041 ↗
26. Properties of synthesized, ion-exchanged, and stabilized zeolite Rho