The role of the support in CO hydrogenation selectivity of supported rhodium
- 1 January 1981
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Faraday Discussions of the Chemical Society
- Vol. 72, 121-133
- https://doi.org/10.1039/dc9817200121
Abstract
Catalytic hydrogenation of CO offers tremendous challenges in catalyst design to control selectivity because of the large variety of hydrocarbons and oxygen-containing species that can be formed; Rh can produce the full range of potential products. Rh on SiO2, Al2O3, TiO2, CeO2 and MgO has been characterized by a complement of techniques and by CO hydrogenation activity. Catalytic activity varied over 200-fold, dependent on the support; Rh/TiO2 was the most active. Selectivity to alcohols vs. hydrocarbons and to methanol vs. ethanol varied over 50-fold. CO hydrogenation selectivity to alcohols varies with the basicity of the support; MgO, the most basic support, exhibited 90 % selectivity to methanol.Keywords
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