REVIEW OF CHEMICAL REACTIONS IN THENOREDUCTION BYCOON PLATINUM/ALUMINA CATALYSTS

Anand Srinivasan () and Christopher Depcik
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Anand Srinivasan: University of Kansas, Department of Mechanical Engineering, 3138 Learned Hall, 1530 W. 15th Street, Lawrence, Kansas 66045, USA
Christopher Depcik: University of Kansas, Department of Mechanical Engineering, 3138 Learned Hall, 1530 W. 15th Street, Lawrence, Kansas 66045, USA

Surface Review and Letters (SRL), 2012, vol. 19, issue 01, 1-17

Abstract: The emissions of nitric oxide and carbon monoxide from internal combustion engines generate a large impact on the environment and on people's health. Catalytic reduction of these species using platinum group metals has already shown significant potential for emissions control. Since catalysts often use carbon monoxide to reduce nitric oxide in these devices, accurate models of their interaction are required to advance catalyst simulations in order to meet increasingly stringent emissions regulations. As a result, this paper reviews the literature of theNO–COreaction over platinum in order to develop more precise detailed and global reaction mechanisms for use in exhaust after-treatment modeling activities. Moreover, it is found that the reaction betweenNOandCOover platinum yields carbon dioxide and nitrogen as main products and nitrous oxide as an important side product. Hence, this paper additionally describes the mechanism for nitrous oxide production in advance of greenhouse gas regulations.

Keywords: Nitrogen oxide; carbon monoxide; platinum; detailed; global; reaction kinetics; nitrous oxide; reaction rate expression (search for similar items in EconPapers)
Date: 2012
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DOI: 10.1142/S0218625X12300018

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