Ammonia synthesis: The bellwether reaction in heterogeneous catalysis |
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Authors: | M Boudart |
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Affiliation: | (1) Department of Chemical Engineering, Stanford University, 94305-5025 Stanford, CA, USA |
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Abstract: | This is a personal account of the Havreholm Conference with a choice of topics dealing with catalytic ammonia synthesis. Among the general concepts that were retained are: the rate determining step with rates of adsorption and desorption of nitrogen; the direct activated dissociative adsorption of N2; the surface crystalline anisotropy of iron; the role of promoters in industrial iron based catalysts; and the atomic structure of the metallic surface on the industrial multiply promoted catalyst. Finally, a new isotope jump technique to measure an upper limit to the real turnover frequency is discussed. |
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Keywords: | ammonia synthesis microkinetic modeling nitrogen dissociation surface structure rate determining step promotion isotope tracing |
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