Probing the structure of metal-substituted molecular sieves by solid-state NMR

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Description

Paramagnetic metal ions exert large influences on the NMR spectra of neighboring nuclei. The authors are using these effects to probe metal sites in zeolites and AlPO{sub 4} molecular sieves. In particular, they are studying [Co]-AlPO{sub 4}-5 because similar cobalt substituted AlPO{sub 4} sieves are reported in the literature. They have extended that work to probe the titanium zeolite TS-1 by comparing spectra of normal TS-1 to samples where the titanium has been reduced to the paramagnetic Ti{sup 3+}. This promises to be a useful technique for determining framework substitution in many zeolite systems.

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5 p.

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Labouriau, A.; Crawford, S.N.; Ott, K. & Earl, W.L. July 1998.

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  • Los Alamos National Laboratory
    Publisher Info: Los Alamos National Lab., Chemical Science and Technology Div., NM (United States)
    Place of Publication: New Mexico

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Description

Paramagnetic metal ions exert large influences on the NMR spectra of neighboring nuclei. The authors are using these effects to probe metal sites in zeolites and AlPO{sub 4} molecular sieves. In particular, they are studying [Co]-AlPO{sub 4}-5 because similar cobalt substituted AlPO{sub 4} sieves are reported in the literature. They have extended that work to probe the titanium zeolite TS-1 by comparing spectra of normal TS-1 to samples where the titanium has been reduced to the paramagnetic Ti{sup 3+}. This promises to be a useful technique for determining framework substitution in many zeolite systems.

Physical Description

5 p.

Notes

OSTI as DE98003704

Source

  • 12. international zeolite conference, Baltimore, MD (United States), 5-10 Jul 1998

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  • Other: DE98003704
  • Report No.: LA-UR--98-644
  • Report No.: CONF-980734--
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 661453
  • Archival Resource Key: ark:/67531/metadc705783

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  • July 1998

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  • Sept. 12, 2015, 6:31 a.m.

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  • Nov. 3, 2016, 1:28 p.m.

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Labouriau, A.; Crawford, S.N.; Ott, K. & Earl, W.L. Probing the structure of metal-substituted molecular sieves by solid-state NMR, article, July 1998; New Mexico. (digital.library.unt.edu/ark:/67531/metadc705783/: accessed December 15, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.