Surface Electronic Properties of Tungsten, Tungsten Carbide, and Platinum

Name: Work Video:
Duration: 3 min 30 s
Description: The local electronic structures of the surface regions of tungsten, tungsten carbide, and platinum have been compared. Contrary to the hypothesis that the platinum-like catalytic activity of tungsten carbide results from the contribution of carbon valence electrons to the 5 d band of tungsten, the width of the unfilled portion of the d band increases on going from tungsten to tungsten carbide.
Jack E. Houston; George E. Laramore; Robert L. Park
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