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Application of X-ray Photoelectron Spectroscopy to the Study of Fly Ash

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Abstract:

X-ray photoelectron spectroscopy has been used to identify and determine the oxidation states of a number of major and minor elements present on the surface of fly ash particles. With the use of a sputtering-etching procedure, relative concentrations as a function of depth were obtained for Si, Al, Fe, Ca, Na, C, O, and S. The concentrations of Na, C, O, and S were found to decrease and Si, Al, and Fe were found to increase upon sputtering to a depth of approximately 50 Å.

Keywords: Depth composition of fly ash particles; ESCA; Fly ash; Surface analysis of fly ash

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/000370278774331378

Affiliations: Physical Sciences Department, Battelle, Pacific Northwest Laboratories, Richland, Washington 99352 and Physical Electronics Industries, Inc., Eden Prairie, Minnesota 55343

Publication date: May 1, 1978

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