An optimization of the preparation was done to improve activity and selectivity, reaching performance close to that of prepared commercially available Cu/ZnO/Al2O3/MgO at low reaction temperatures and pressure. Extensive in situ characterisation using environmental TEM, in situ XRD and in situ EXAFS of the formation of the Ni2FeGa catalyst explains an optimal reduction temperature of 550°C: warm enough that the three atomic species will form an alloy while cold enough to prevent the catalyst from sintering during the formation.
Thomas Erik Lyck Smitshuysen, Monia R. Nielsen, Tim Pruessmann, Anna Zimina, Thomas L. Sheppard, Jan-Dierk Grunwaldt, Ib Chorkendorff and Christian D. Damsgaard
CHEMCATCHEM
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