Abstract
Experimentally determined particle growth kinetics are presented for two types of systems: a dispersion of platinum particles in a microporous alumina support, which is typical of commercial catalysts, and a dispersion of platinum particles on a flat, nonporous alumina substrate, which is more amenable to interpretation by means of theoretical models.
Comparison of the experimental results with estimates derived from a number of models for particle growth indicates that, under oxidizing conditions, growth is most likely controlled by facet-inhibited interparticle transport over the substrate surface. Although detailed agreement of the theory with experiments on microporous catalysts is not obtained, qualitative theoretical trends are generally substantiated by experiment.
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References
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© 1975 Plenum Press, New York
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Wynblatt, P., Dalla Betta, R.A., Gjostein, N.A. (1975). Particle Growth in Supported Catalysts. In: Drauglis, E., Jaffee, R.I. (eds) The Physical Basis for Heterogeneous Catalysis. Battelle Institute Materials Science Colloquia, vol 30. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-8759-0_28
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DOI: https://doi.org/10.1007/978-1-4615-8759-0_28
Publisher Name: Springer, Boston, MA
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