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Korean Journal of Chemical Engineering

, Volume 8, Issue 3, pp 164–167 | Cite as

An XANES study of carbides of molybdenum and tungsten

  • Jae Sung Lee
  • Jae Eui Yie
Article

Abstract

The X-ray absorption near edge structure (XANES) of molybdenum and tungsten compounds has been studied by using synchrotron radiation. Substantial difference in XANES features between metals and their carbides suggested significant difference in electronic structure between them. The shift in edge position indicated charge transfer from metal to carbon when a carbide is formed. In light of a modern band theory, the larger white line areas for carbides could be interpreted as due to some of the unoccupied d-states which are not measured by x-ray white line area.

Keywords

Carbide Edge Position Transition Metal Carbide Absorption Edge Position Tile Rise 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Korean Institute of Chemical Engineering 1991

Authors and Affiliations

  • Jae Sung Lee
    • 2
    • 1
  • Jae Eui Yie
    • 2
  1. 1.Department of Chemical Engineering, Pohang Institute of Science and TechnologyResearch Institute of Industrial Science and TechnologyPohangKorea
  2. 2.Department of Industrial ChemistryAjou UniversitySuwonKorea

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