作者
M Alexander Ardagh, Manish Shetty, Anatoliy Kuznetsov, Qi Zhang, Phillip Christopher, Dionisios G Vlachos, Omar A Abdelrahman, Paul J Dauenhauer
发表日期
2020
期刊
Chemical Science
卷号
11
期号
13
页码范围
3501-3510
出版商
Royal Society of Chemistry
简介
Catalytic enhancement of chemical reactions via heterogeneous materials occurs through stabilization of transition states at designed active sites, but dramatically greater rate acceleration on that same active site can be achieved when the surface intermediates oscillate in binding energy. The applied oscillation amplitude and frequency can accelerate reactions orders of magnitude above the catalytic rates of static systems, provided the active site dynamics are tuned to the natural frequencies of the surface chemistry. In this work, differences in the characteristics of parallel reactions are exploited via selective application of active site dynamics (0 < ΔU < 1.0 eV amplitude, 10-6 < f < 104 Hz frequency) to control the extent of competing reactions occurring on the shared catalytic surface. Simulation of multiple parallel reaction systems with broad range of variation in chemical parameters revealed that parallel …
学术搜索中的文章
MA Ardagh, M Shetty, A Kuznetsov, Q Zhang… - Chemical Science, 2020