Zeolite beta spheres

作者: L Tosheva , B Mihailova , V Valtchev , J Sterte

DOI: 10.1016/S1387-1811(01)00327-4

关键词:

摘要: Zeolite beta was crystallized from clear homogeneous solutions within the pores of anion exchange resin beads. The organic macrotemplate then removed by combustion leaving stable macrospheres zeolite beta. crystallization beads investigated X-ray diffraction, Raman spectroscopy, SEM and nitrogen adsorption measurements. Crystallization macrotemplates compared with bulk solution. influence on process increasing amount ion exchanger present during synthesis also preparing samples in absence macrotemplates.

参考文章(20)
Takashi Tatsumi, Nizamidin Jappar, Properties of Ti-Beta Zeolites Synthesized by Dry-Gel Conversion and Hydrothermal Methods Journal of Physical Chemistry B. ,vol. 102, pp. 7126- 7131 ,(1998) , 10.1021/JP9816216
A. Bhaumik, T. Tatsumi, Pure silica NU-1 and Na- and Al-free Ti-NU-1 synthesized by the dry gel conversion method Microporous and Mesoporous Materials. ,vol. 34, pp. 1- 7 ,(2000) , 10.1016/S1387-1811(99)00144-4
P.R. Hari Prasad Rao, C.A. Leon y Leon, K. Ueyama, M. Matsukata, Synthesis of BEA by dry gel conversion and its characterization Microporous and Mesoporous Materials. ,vol. 21, pp. 305- 313 ,(1998) , 10.1016/S1387-1811(98)00033-X
Rajib Bandyopadhyay, Yoshihiro Kubota, Noriaki Sugimoto, Yoshiaki Fukushima, Yoshihiro Sugi, Synthesis of borosilicate zeolites by the dry gel conversion method and their characterization Microporous and Mesoporous Materials. ,vol. 32, pp. 81- 91 ,(1999) , 10.1016/S1387-1811(99)00092-X
Takahiko Takewaki, Son-Jong Hwang, Hiromi Yamashita, Mark E Davis, Synthesis of ∗BEA-type molecular sieves using mesoporous materials as reagents Microporous and Mesoporous Materials. ,vol. 32, pp. 265- 278 ,(1999) , 10.1016/S1387-1811(99)00113-4
Kenneth J. Balkus, Ashley S. Scott, Molecular sieve coatings on spherical substrates via pulsed laser deposition Microporous and Mesoporous Materials. ,vol. 34, pp. 31- 42 ,(2000) , 10.1016/S1387-1811(99)00153-5
Alfredo Pasquarello, Roberto Car, Identification of Raman defect lines as signatures of ring structures in vitreous silica Physical Review Letters. ,vol. 80, pp. 5145- 5147 ,(1998) , 10.1103/PHYSREVLETT.80.5145
J.B. Higgins, R.B. LaPierre, J.L. Schlenker, A.C. Rohrman, J.D. Wood, G.T. Kerr, W.J. Rohrbaugh, The framework topology of zeolite beta Zeolites. ,vol. 8, pp. 446- 452 ,(1988) , 10.1016/S0144-2449(88)80219-7
Prabir K. Dutta, K. Mohana Rao, Jong Yul Park, Correlation of Raman spectra of zeolites with framework architecture The Journal of Physical Chemistry. ,vol. 95, pp. 6654- 6656 ,(1991) , 10.1021/J100170A050
Takashi Uchino, Yomei Tokuda, Toshinobu Yoko, Vibrational dynamics of defect modes in vitreous silica Physical Review B. ,vol. 58, pp. 5322- 5328 ,(1998) , 10.1103/PHYSREVB.58.5322