Catalysis Letters

, Volume 15, Issue 1–2, pp 65–73 | Cite as

Adsorption effects in aluminophosphate molecular sieves studied by27Al double-rotation NMR

  • R. Jelinek
  • B. F. Chmelka
  • Y. Wu
  • M. E. Davis
  • J. G. Unlan
  • R. Gronsky
  • A. Pines


27Al double rotation NMR (DOR) spectroscopy is used to investigate structural changes in the framework of several aluminophosphate molecular sieves upon adsorption of water. The shapes, widths, and positions of the spectral lines yield information on the aluminum environments, adsorption sites, and degree of structural disorder undergone upon water adsorption.


NMR (DOR) spectroscopy aluminophosphate molecular sieves aluminum environment adsorption sites structural disorder water adsorption 


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Copyright information

© J.C. Baltzer A.G. Scientific Publishing Company 1992

Authors and Affiliations

  • R. Jelinek
    • 1
  • B. F. Chmelka
    • 1
    • 2
  • Y. Wu
    • 1
    • 3
  • M. E. Davis
    • 1
    • 4
  • J. G. Unlan
    • 1
    • 5
  • R. Gronsky
    • 1
    • 6
  • A. Pines
    • 1
  1. 1.Materials Sciences Division, Lawrence Berkeley Laboratory and Department of ChemistryUniversity of CaliforniaBerkeleyUSA
  2. 2.Department of Chemical and Nuclear EngineeringUniversity of CaliforniaSanta BarbaraUSA
  3. 3.Department of PhysicsUniversity of North CarolinaChapel HillUSA
  4. 4.Chemical EngineeringCalifornia Institute of TechnologyPasadenaUSA
  5. 5.Institute for Environmental ChemistryNational Research Council CanadaCanada
  6. 6.Materials and Sciences Division, Lawrence Berkeley LaboratoryNational Center of Electron MicroscopyUSA

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