Synthesis of high silica CHA zeolites with controlled Si/Al ratio

被引：0
|
作者：
Department of Chemistry, University of Oslo, P.O. Box 1033, Blindern, N, 0315 Oslo, Norway [1 ]
不详 [2 ]
不详 [3 ]
不详 [4 ]
机构：
来源：
Studies in Surface Science and Catalysis | 2008年 / 174卷 / 0A期
关键词：
Particle size - Silica - Atomic emission spectroscopy;
D O I：
10.1016/S0167-2991(08)80193-0
中图分类号：
O61 [无机化学]; TQ [化学工业];
学科分类号：
070301 ; 0817 ; 081704 ;
摘要：
Zeolites with the CHA topology have been synthesized with Si/Al ratios ranging from 15 to 133. ICP-AES analysis shows that the Si/Al ratio in the material is close to linearly related to the Si/Al ratio in the reaction mixture, while powder XRD shows that the unit cell parameters decrease with increasing Si/Al ratio. The difference between the unit cell parameters for the as-synthesized and the calcined samples show that the structure directing agent sterically hinders the contraction in the c-axis direction for the as-synthesized samples. A relationship between the Si/Al ratio in the material and the a-axis has been established. The particle size of the material also shows a dependency on the Si/Al ratio of the material. © 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：265 / 268
相关论文
共 50 条
  • [31] The Influence of Si/Al Ratio on the Distribution of OH Groups in Zeolites with MWW Topology
    Gil, Barbara
    Marszalek, Bartosz
    Micek-Ilnicka, Anna
    Olejniczak, Zbigniew
    TOPICS IN CATALYSIS, 2010, 53 (19-20) : 1340 - 1348
  • [32] Anionic platinum carbonyls in zeolites:: effect of Si/Al ratio and of zeolitic structure
    Nováková, J
    JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2001, 169 (1-2) : 247 - 257
  • [33] X-RAY DETERMINATION OF THE SI/AL RATIO IN ZEOLITES WITH HEULANDITE STRUCTURE
    KIROV, GN
    HUE, CC
    FILIZOVA, L
    DOKLADI NA BOLGARSKATA AKADEMIYA NA NAUKITE, 1990, 43 (08): : 73 - 76
  • [34] The Influence of Si/Al Ratio on the Distribution of OH Groups in Zeolites with MWW Topology
    Barbara Gil
    Bartosz Marszałek
    Anna Micek-Ilnicka
    Zbigniew Olejniczak
    Topics in Catalysis, 2010, 53 : 1340 - 1348
  • [35] Elucidation of Si/Al ratio on physicochemical properties of HZSM-5 zeolites
    Hamid Rajaei
    Feridun Esmaeilzadeh
    Dariush Mowla
    Journal of Thermal Analysis and Calorimetry, 2021, 146 : 581 - 586
  • [36] Autoreduction of Copper in Zeolites: Role of Topology, Si/Al Ratio, and Copper Loading
    Sushkevich, Vitaly L.
    Smimov, Andrei V.
    van Bokhoven, Jeroen A.
    JOURNAL OF PHYSICAL CHEMISTRY C, 2019, 123 (15): : 9926 - 9934
  • [37] INFLUENCE OF FRAMEWORK SI/AL RATIO ON THE RAMAN-SPECTRA OF FAUJASITIC ZEOLITES
    DUTTA, PK
    TWU, J
    JOURNAL OF PHYSICAL CHEMISTRY, 1991, 95 (06): : 2498 - 2501
  • [38] Elucidation of Si/Al ratio on physicochemical properties of HZSM-5 zeolites
    Rajaei, Hamid
    Esmaeilzadeh, Feridun
    Mowla, Dariush
    JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 2021, 146 (02) : 581 - 586
  • [39] Influence of the Si/Al ratio and crystal size on the acidity and activity of HBEA zeolites
    Simon-Masseron, A.
    Marques, J. P.
    Lopes, J. M.
    Ribeiro, F. Ramoa
    Gener, I.
    Guisnet, M.
    APPLIED CATALYSIS A-GENERAL, 2007, 316 (01) : 75 - 82
  • [40] How the stability of the microporous amorphous precursors of zeolites is affected by the Si/Al ratio
    Morsli, A.
    Chiche, B.
    Bengueddach, A.
    Quignard, F.
    Di Renzo, F.
    ZEOLITES AND RELATED MATERIALS: TRENDS, TARGETS AND CHALLENGES, PROCEEDINGS OF THE 4TH INTERNATIONAL FEZA CONFERENCE, 2008, 174 : 477 - 480
12345