Framework Ordering in Aluminophosphate Molecular Sieves Studied by27Al Double Rotation NMR

B. F. Chmelka; Y. Wu; R. Jelinek; M. E. Davis; A. Pines

doi:10.1016/S0167-2991(08)61598-0

Framework Ordering in Aluminophosphate Molecular Sieves Studied by²⁷Al Double Rotation NMR

B. F. Chmelka, Y. Wu, R. Jelinek, M. E. Davis, A. Pines

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

Aluminum-27 Double Rotation NMR spectroscopy (DOR) has been used to investigate framework ordering in the aluminophosphate molecular sieves VPI-5, AIPO₄-5, and AIPO₄-8. Well-resolved peaks in the ²⁷Al DOR spectra of both hydrated and dehydrated VPI-5 allow isotropic shifts to be correlated with local framework structure. More distorted aluminum environments are reflected by broader lines in ²⁷Al DOR spectra of AlPO₄-5 and AlPO₄-8.

Original language	English
Pages (from-to)	435-442
Number of pages	8
Journal	Studies in Surface Science and Catalysis
Volume	69
Issue number	C
DOIs	https://doi.org/10.1016/S0167-2991(08)61598-0
State	Published - 1 Jan 1991
Externally published	Yes

ASJC Scopus subject areas

Catalysis
Condensed Matter Physics
Physical and Theoretical Chemistry
Surfaces, Coatings and Films
Materials Chemistry

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title = "Framework Ordering in Aluminophosphate Molecular Sieves Studied by27Al Double Rotation NMR",

abstract = "Aluminum-27 Double Rotation NMR spectroscopy (DOR) has been used to investigate framework ordering in the aluminophosphate molecular sieves VPI-5, AIPO4-5, and AIPO4-8. Well-resolved peaks in the 27Al DOR spectra of both hydrated and dehydrated VPI-5 allow isotropic shifts to be correlated with local framework structure. More distorted aluminum environments are reflected by broader lines in 27Al DOR spectra of AlPO4-5 and AlPO4-8.",

author = "Chmelka, {B. F.} and Y. Wu and R. Jelinek and Davis, {M. E.} and A. Pines",

note = "Funding Information: Acknowledgments. This work was supported by the Director, Office of Energy Research, Office of Basic Energy Sciences, Materials Sciences Division of the U.S. Department of Energy under Contract No. DE-AC03-76SF00098. B.F.C. is a NSF post-doctoral fellow in chemistry.",

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doi = "10.1016/S0167-2991(08)61598-0",

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T1 - Framework Ordering in Aluminophosphate Molecular Sieves Studied by27Al Double Rotation NMR

AU - Chmelka, B. F.

AU - Wu, Y.

AU - Jelinek, R.

AU - Davis, M. E.

AU - Pines, A.

N1 - Funding Information: Acknowledgments. This work was supported by the Director, Office of Energy Research, Office of Basic Energy Sciences, Materials Sciences Division of the U.S. Department of Energy under Contract No. DE-AC03-76SF00098. B.F.C. is a NSF post-doctoral fellow in chemistry.

PY - 1991/1/1

Y1 - 1991/1/1

N2 - Aluminum-27 Double Rotation NMR spectroscopy (DOR) has been used to investigate framework ordering in the aluminophosphate molecular sieves VPI-5, AIPO4-5, and AIPO4-8. Well-resolved peaks in the 27Al DOR spectra of both hydrated and dehydrated VPI-5 allow isotropic shifts to be correlated with local framework structure. More distorted aluminum environments are reflected by broader lines in 27Al DOR spectra of AlPO4-5 and AlPO4-8.

AB - Aluminum-27 Double Rotation NMR spectroscopy (DOR) has been used to investigate framework ordering in the aluminophosphate molecular sieves VPI-5, AIPO4-5, and AIPO4-8. Well-resolved peaks in the 27Al DOR spectra of both hydrated and dehydrated VPI-5 allow isotropic shifts to be correlated with local framework structure. More distorted aluminum environments are reflected by broader lines in 27Al DOR spectra of AlPO4-5 and AlPO4-8.

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JO - Studies in Surface Science and Catalysis

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ER -

Framework Ordering in Aluminophosphate Molecular Sieves Studied by²⁷Al Double Rotation NMR

Abstract

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