NSF-CGP Fellowship: Reaction Kinetics and Mechanisms for the Reduction of a Copper Oxide Surface with H Atoms

9802702伟达本奖学金资助美国印第安纳大学博士后Miles J. Weida博士与日本埼玉县鸠山日立高级研究实验室高级研究科学家Hrvoje Petek博士进行为期24个月的研究访问。这些合作者将对氢原子还原氧化铜表面的反应动力学和机理进行详细的研究。铜可以被看作是比较复杂的过渡金属的一个很好的模型。这表明，铜上的氧-氢反应作为一个模型体系，将为过渡金属的非均相催化提供新的认识。虽然对具有催化作用的过渡金属的研究部分源于它们的实际重要性，但对铜表面上的氢和氧的研究有几个优点，这使它成为一个具有基本兴趣的系统。一个优点是氧和氢在铜上的吸附结构已经被广泛地表征。鉴于对铜表面上氧和氢的吸附的理解水平，将这些研究扩展到铜表面上这些物种的相互作用似乎是很自然的。这一研究可能会对诸如表面上吸附物的自组织和吸附物诱导的金属原子在多相催化中的传输等当前感兴趣的话题有所启发。本项目由美国国家科学基金会和日本财团全球伙伴关系中心科学奖学金计划资助。* * *

9802702 Weida This award provides funds to support a 24-month research visit by Dr. Miles J. Weida, postdoctoral fellow, Indiana University, for collaboration with Dr. Hrvoje Petek, Senior Research Scientist, Hitachi Advanced Research Laboratory, Hatoyama, Saitama, Japan. These collaborators will perform a detailed study of the reaction kinetics and mechanisms for the reduction of a copper oxide surface by hydrogen atoms. Copper can be viewed as a good model for more complicated transition metals. This suggests that the oxygen-hydrogen reaction on copper, as a model system, should provide new insight into heterogeneous catalysis on transition metals. Although the study of catalytically useful transition metals stems in part from their practical importance, the study of hydrogen and oxygen on copper surfaces has several advantages which make it a system of fundamental interest. One advantage is the fact that the adsorbate structures of both oxygen and hydrogen on copper have been extensively characterized. Given the level of understanding of the adsorption of oxygen and hydrogen on copper surfaces, it seems natural to extend these studies to the interaction of these species on copper surfaces. This research may shed light on such topics of current interest as self organization of adsorbates on surfaces and adsorbate- induced metal atom transport in heterogeneous catalysis. This project is supported under the Science Fellowship Program between the National Science Foundation and the Japan Foundation Center for Global Partnership. ***