caa a22 4500 469059540 CHVBK 20180323132853.0 cr unu---uuuuu 170328e19920701xx s 000 0 eng 10.1007/BF01042779 doi (NATIONALLICENCE)springer-10.1007/BF01042779 Synthesis and characterization of gallosilicate pentasil (MFI) framework zeolites [Elektronische Daten] [S. Awate, P. Joshi, V. Shiralkar, A. Kotasthane] Crystalline gallosilicates with a pentasil (MFI) framework containing Ga3+ in lattice positions were synthesised. The kinetic features of the hydrothermal system containing triethyl-n-butylammonium cations (TEBA)+ as template in the gel system have been investigated. The gallosilicate products were characterized by XRD, framework-IR, TG/DTA,29Si and71Ga MASNMR and sorption measurements using standard techniques. $$Na_2 O:(TEBA)_2 O:Ga_2 O_3 :SiO_2 :H_2 O$$ The values of the apparent activation energies for nucleation (E n) and crystallization (E c) were evaluated by applying the Arrhenius equation. Evidence from29Si and71Ga MASNMR as well as the estimated unit-cell volumes computed from XRD powder patterns indicate that a significant amount of Ga3+ is substituted in the pentasil (MFI) framework. Kluwer Academic Publishers, 1992 Gallosilicate (MFI) synthesis nationallicence crystallization kinetics nationallicence 29Si71Ga MASNMR nationallicence XRD nationallicence IR nationallicence Awate S. National Chemical Laboratory, 411008, Pune, India aut Joshi P. National Chemical Laboratory, 411008, Pune, India aut Shiralkar V. National Chemical Laboratory, 411008, Pune, India aut Kotasthane A. National Chemical Laboratory, 411008, Pune, India aut Journal of inclusion phenomena and molecular recognition in chemistry Kluwer Academic Publishers 13/3(1992-07-01), 207-218 0923-0750 13:3<207 1992 13 10847 https://doi.org/10.1007/BF01042779 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01042779 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Awate S. National Chemical Laboratory, 411008, Pune, India aut NATIONALLICENCE 700 1- Joshi P. National Chemical Laboratory, 411008, Pune, India aut NATIONALLICENCE 700 1- Shiralkar V. National Chemical Laboratory, 411008, Pune, India aut NATIONALLICENCE 700 1- Kotasthane A. National Chemical Laboratory, 411008, Pune, India aut NATIONALLICENCE 773 0- Journal of inclusion phenomena and molecular recognition in chemistry Kluwer Academic Publishers 13/3(1992-07-01), 207-218 0923-0750 13:3<207 1992 13 10847 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer