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UC Riverside researcher takes snapshots of the movement of molecules in a billionth of a second

uestions in surface science, according to Bartels and his co-authors. They include such questions as what substrate excitations drive surface diffusion of absorbates? Surface diffusion is a very basic and important process in surface science, playing a key role in processes as diverse as the formation of crystals and the activity of catalysts.

"This is very basic research but it has implications for many other areas in science," said Bartels. "Catalysts, like the one in the exhaust system in every car, are made from a porous material. The exhaust gas is passed through it and the pollutants such as carbon monoxide and nitric oxide can stick to the surface of the catalyst material."

A small portion of the catalyst surface can transform the pollutant into benign gasses while the rest of the surface supports these active sites. Understanding how carbon monoxide moves across a catalyst surface to find the active sites may ultimately allow the design of more efficient catalysts. The article's findings offer a new way of studying the very fast movement of carbon monoxide on surfaces.


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Contact: Ricardo Duran
ricardo.duran@ucr.edu
951-827-5893
University of California - Riverside
4-Aug-2004


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