Motion and structure of water adsorbed in type-A zeolites.

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The motion of water adsorbed in Type-Azeotites has been measured using quasielastic and inelastic neutron spectroscopy. Changes in the charge-compensating cation has a dramatic effect on the low frequency vibrational spectrum, which has a well defined low frequency feature for sodium and lithium but no such peak is present for the case of potassium and calcium. At 297K the low frequency feature is still visible, while there is also quasielastic broadening of the elastic line due to diffusion of the water protons. These measurements are interpreted in the light of the results from computer simulations of these materials.

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9 p.

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Trouw, F. R. March 5, 1998.

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Description

The motion of water adsorbed in Type-Azeotites has been measured using quasielastic and inelastic neutron spectroscopy. Changes in the charge-compensating cation has a dramatic effect on the low frequency vibrational spectrum, which has a well defined low frequency feature for sodium and lithium but no such peak is present for the case of potassium and calcium. At 297K the low frequency feature is still visible, while there is also quasielastic broadening of the elastic line due to diffusion of the water protons. These measurements are interpreted in the light of the results from computer simulations of these materials.

Physical Description

9 p.

Notes

OSTI as DE00010673

Medium: P; Size: 9 pages

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  • Workshop on Materials Research Using Cold Neutrons at Pulsed Neutron Sources, Argonne, IL (US), 08/25/1997--08/26/1997

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  • Report No.: ANL/IPNS/CP-95797
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 10673
  • Archival Resource Key: ark:/67531/metadc624682

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  • March 5, 1998

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  • June 16, 2015, 7:43 a.m.

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  • April 11, 2017, 8:27 p.m.

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Trouw, F. R. Motion and structure of water adsorbed in type-A zeolites., article, March 5, 1998; Illinois. (digital.library.unt.edu/ark:/67531/metadc624682/: accessed September 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.