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Alkali metal oxides commonly exist as impurities or promoters in syngas conversion catalysts and can significantly influence the activity and selectivity towards higher oxygenate products. In this study, we investigate the effects of sodium oxide on silica-supported Rh catalysts by experimentally introducing different amounts of sodium and monitoring the change in reactivity and CO adsorption behavior...
Oxide supports in heterogeneous catalysts can profoundly influence the catalytic properties of the metal or alloy active phase. Supports prepared by conventional methods can have not only different chemical properties but also different structural properties depending on the oxide. These structural differences can in turn affect the dispersion, distribution, and accessibility of the active phase....
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