Model catalysis by size-selected cluster deposition

Anderson, Scott¹ 

[1] Univ. of Utah, Salt Lake City, UT (United States)

关键词: clusters;    size effects;    catalysis;    electrochemistry;   

DOI  :  10.2172/1226465
RP-ID  :  None
PID  :  OSTI ID: 1226465
Others  :  Other: 8015857289

学科分类：化学（综合）

美国|英语

来源: SciTech Connect

【 摘 要 】

This report summarizes the accomplishments during the last four years of the subject grant. Results are presented for experiments in which size-selected model catalysts were studied under surface science and aqueous electrochemical conditions. Strong effects of cluster size were found, and by correlating the size effects with size-dependent physical properties of the samples measured by surface science methods, it was possible to deduce mechanistic insights, such as the factors that control the rate-limiting step in the reactions. Results are presented for CO oxidation, CO binding energetics and geometries, and electronic effects under surface science conditions, and for the electrochemical oxygen reduction reaction, ethanol oxidation reaction, and for oxidation of carbon by water.