EXPERIMENTAL INVESTIGATIONS OF THE INTERACTION OF SO(2) WITH MGO.

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High resolution adsorption isotherms, temperature programmed desorption (TPD), x-ray diffraction (XRD) and x-ray absorption near edge spectroscopy (XANES) methods were used to investigate the interaction of SO{sub 2} with high quality MgO powders. The results of these investigations indicate that when SO{sub 2} is deposited on MgO in monolayer quantities at temperatures near 100K both SO{sub 2} and SO{sub 4} species form that are not removed by simply pumping on the pre-dosed samples at room temperature. TPD and XANES studies indicate that heating of pre-dosed MgO samples to temperatures above 350 C is required for full removal of the SO{sub ... continued below

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6 pages

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FREITAG,A. November 29, 1999.

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High resolution adsorption isotherms, temperature programmed desorption (TPD), x-ray diffraction (XRD) and x-ray absorption near edge spectroscopy (XANES) methods were used to investigate the interaction of SO{sub 2} with high quality MgO powders. The results of these investigations indicate that when SO{sub 2} is deposited on MgO in monolayer quantities at temperatures near 100K both SO{sub 2} and SO{sub 4} species form that are not removed by simply pumping on the pre-dosed samples at room temperature. TPD and XANES studies indicate that heating of pre-dosed MgO samples to temperatures above 350 C is required for full removal of the SO{sub 3}/SO{sub 4} species. XANES measurements made as a function of film thickness indicate for coverages near monolayer completion that the SO{sub 4} species form first.

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6 pages

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OSTI as DE00751124

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  • PROCEEDINGS OF SYMPOSIUM ON THE APPLICATION OF SYNCHROTRON RADIATION TEHNIQUES TO MATERIALS SCIENCE, BOSTON, MA (US), 11/29/1999--12/03/1999

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  • Report No.: BNL--67063
  • Report No.: KC020301, KC030201
  • Grant Number: AC02-98CH10886
  • Office of Scientific & Technical Information Report Number: 751124
  • Archival Resource Key: ark:/67531/metadc709788

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  • November 29, 1999

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  • Sept. 12, 2015, 6:31 a.m.

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  • Nov. 9, 2015, 12:04 p.m.

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FREITAG,A. EXPERIMENTAL INVESTIGATIONS OF THE INTERACTION OF SO(2) WITH MGO., article, November 29, 1999; Upton, New York. (digital.library.unt.edu/ark:/67531/metadc709788/: accessed September 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.