Synthesis of isomorphously substituted extra-large pore UTL zeolites
作者： Mariya V. Shamzhy , Oleksiy V. Shvets , Maksym V. Opanasenko , Pavel S. Yaremov , Liana G. Sarkisyan
DOI: 10.1039/C2JM31725G
关键词:
摘要: The influence of various synthesis parameters (e.g. gel composition, pH the reaction mixture, duration crystallization) on phase selectivity zeolite formation in germanosilicate medium presence different three-valent heteroatoms (B, Al, Ga, Fe or In) was systematically studied and compared with a controlled crystallization from pure media. boundary conditions isomorphously substituted extra-large pore UTL were established. In 1 mol% respective heteroelement initial borders are found to be 7.5–11.9 for Fe-, 7.8–12.0 B-, 8.2–11.0 Ga-, 11.0–12.0 In-, 11.3–12.0 Al-containing mixtures. maximum concentration heteroelements mixture successful is 1.5 Al 6 In, 13 B. size crystals decreases order Al- > In- Ga- Fe- ≈ B-UTL. nature isomorphous substituent influences textural properties (pore distribution) zeolites.
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sci-hub.se 参考文章(49)
A.K. Cheetham, H. Fjellvg, T.E. Gier, K.O. Kongshaug, K.P. Lillerud, G.D. Stucky, 05-O-05-Very open microporous materials: from concept to reality Studies in Surface Science and Catalysis. ,vol. 135, pp. 158- ,(2001) , 10.1016/S0167-2991(01)81268-4
Avelino Corma, Maria Jose Díaz-Cabañas, Fernando Rey, Stavros Nicolopoulus, Khalid Boulahya, ITQ-15: the first ultralarge pore zeolite with a bi-directional pore system formed by intersecting 14- and 12-ring channels, and its catalytic implications. Chemical Communications. pp. 1356- 1357 ,(2004) , 10.1039/B406572G
Colin S. Cundy, Paul A. Cox, The Hydrothermal Synthesis of Zeolites: History and Development from the Earliest Days to the Present Time Chemical Reviews. ,vol. 103, pp. 663- 702 ,(2003) , 10.1021/CR020060I
Allen W. Burton, Greg S. Lee, Stacey I. Zones, Phase selectivity in the syntheses of cage-based zeolite structures: An investigation of thermodynamic interactions between zeolite hosts and structure directing agents by molecular modeling Microporous and Mesoporous Materials. ,vol. 90, pp. 129- 144 ,(2006) , 10.1016/J.MICROMESO.2005.11.022
Jeffrey D Rimer, Daniel D Roth, Dionisios G Vlachos, Raul F Lobo, None, Self-assembly and phase behavior of germanium oxide nanoparticles in basic aqueous solutions. Langmuir. ,vol. 23, pp. 2784- 2791 ,(2007) , 10.1021/LA062828Q
Nataliia Kasian, Gina Vanbutsele, Kristof Houthoofd, Tamas I. Koranyi, Johan A. Martens, Christine E. A. Kirschhock, Catalytic activity and extra-large pores of germanosilicate UTL zeolite demonstrated with decane test reaction Catalysis Science & Technology. ,vol. 1, pp. 246- 254 ,(2011) , 10.1039/C0CY00043D
H. H. Krause, O. H. Johnson, Analytical Methods for Germanium Analytical Chemistry. ,vol. 25, pp. 134- 138 ,(1953) , 10.1021/AC60073A024
H. C. Foley, A. Saito, Curvature and parametric sensitivity in models for adsorption in micropores Aiche Journal. ,vol. 37, pp. 429- 436 ,(1991) , 10.1002/AIC.690370312
Cynthia T. W. Chu, Clarence D. Chang, Isomorphous substitution in zeolite frameworks. 1. Acidity of surface hydroxyls in [B]-, [Fe]-, [Ga]-, and [Al]-ZSM-5 The Journal of Physical Chemistry. ,vol. 89, pp. 1569- 1571 ,(1985) , 10.1021/J100255A005
A.D. Irwin, J.S. Holmgren, J. Jonas, Solid state 29Si and 11B NMR studies of sol-gel derived borosilicates Journal of Non-crystalline Solids. ,vol. 101, pp. 249- 254 ,(1988) , 10.1016/0022-3093(88)90160-3