Real-Time Infrared Detection of Cyanide Flip on Silver-Alumina NO <i> <sub>x</sub> </i> Removal Catalyst
-
- Frédéric Thibault-Starzyk
- Laboratoire Catalyse et Spectrochimie, ENSICAEN-Université de Caen-CNRS, Boulevard Maréchal Juin, 14050 Caen Cedex, France.
-
- Etienne Seguin
- Laboratoire Catalyse et Spectrochimie, ENSICAEN-Université de Caen-CNRS, Boulevard Maréchal Juin, 14050 Caen Cedex, France.
-
- Sébastien Thomas
- Laboratoire Catalyse et Spectrochimie, ENSICAEN-Université de Caen-CNRS, Boulevard Maréchal Juin, 14050 Caen Cedex, France.
-
- Marco Daturi
- Laboratoire Catalyse et Spectrochimie, ENSICAEN-Université de Caen-CNRS, Boulevard Maréchal Juin, 14050 Caen Cedex, France.
-
- Heike Arnolds
- Surface Science Research Centre, Department of Chemistry, University of Liverpool, Oxford Street, Liverpool L69 3BX, UK.
-
- David A. King
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, UK.
この論文をさがす
説明
<jats:title>A Jump on Catalyst Kinetics</jats:title> <jats:p> A common method for interrogating fast reaction kinetics is to create an abrupt initiation point, and, for reactions catalyzed by metals on oxide supports, one option is to induce a rapid temperature jump, provided that the part of the catalyst undergoing heating can be probed locally. <jats:bold> Thibault-Starzyk <jats:italic>et al.</jats:italic> </jats:bold> (p. <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" page="1048" related-article-type="in-this-issue" vol="324" xlink:href="10.1126/science.1169041">1048</jats:related-article> ) used femtosecond laser pulses to heat catalysts for nitrogen oxide removal and followed the reaction with Fourier-transform infrared spectroscopy. These catalysts are designed to remove NO in fuel-efficient lean-burn engines through reaction with CO, rather than with hydrocarbons. A cyanide reaction intermediate was identified that moves from the silver nanoparticle to the alumina surface. </jats:p>
収録刊行物
-
- Science
-
Science 324 (5930), 1048-1051, 2009-05-22
American Association for the Advancement of Science (AAAS)
