Redispersion of cobalt particles supported on titanium dioxide
- 1 January 1984
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases
- Vol. 80 (4) , 803-811
- https://doi.org/10.1039/f19848000803
Abstract
The particle size of cobalt in a Co/TiO2 catalyst increased with increasing reduction temperature up to 600 °C. At 700 °C, where the phase transformation of TiO2 from anatase to rutile occurred, the cobalt particles redispersed to individual crystallites. This redispersion has been confirmed by measuring the specific activity of the cobalt catalyst for the hydrogenation of propene. The relation between the phase transformation of TiO2 and the redispersion of cobalt has been studied kinetically using high-temperature X-ray diffraction spectroscopy.Keywords
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