钨
碳化钨
铂金
材料科学
碳化物
钨化合物
价带
冶金
催化作用
化学
带隙
光电子学
生物化学
作者
Jack E. Houston,George E. Laramore,Robert L. Park
出处
期刊:Science
[American Association for the Advancement of Science (AAAS)]
日期:1974-07-19
卷期号:185 (4147): 258-260
被引量:107
标识
DOI:10.1126/science.185.4147.258
摘要
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 5d band of tungsten, the width of the unfilled portion of the d band increases on going from tungsten to tungsten carbide.
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