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X-Ray Absorption Spectroscopy: Catalyst Applications

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Abstract

Fundamental to the ultimate understanding of catalysts and catalysis are models based upon atomic arrangement. However, the compositional nature of catalysts makes the structure determination difficult. The element specific advantage of x-ray absorption spectroscopy has opened a new dimension in the characterization of catalysts. Determinable parameters involving the catalytic atom include bond distances, number and kind of near neighbors, thermal and static disorder, as well as changes in valence electron states. The penetrating character of x radiation is advantageous for performing in situ experiments. Herein we discuss (1) the nature of catalysts, (2) principles of exafs used to analyze our data, (3) experimental technique, (4) exafs determination of catalyst structure—primarily our own work on supported metal catalysts but also other recent work on metal oxide and homogeneous catalysts, and (5) a correlation of L 3-edge difference spectra with electronic structure.

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© 1980 Plenum Press, New York

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Lytle, F.W., Via, G.H., Sinfelt, J.H. (1980). X-Ray Absorption Spectroscopy: Catalyst Applications. In: Winick, H., Doniach, S. (eds) Synchrotron Radiation Research. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-7998-4_12

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  • DOI: https://doi.org/10.1007/978-1-4615-7998-4_12

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4615-8000-3

  • Online ISBN: 978-1-4615-7998-4

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