Abstract
A series of CoxBa1.5Ni9 catalysts prepared by a co-precipitation method were investigated for N2O decomposition. Co improved the activity of NiO when BaCO3 was present but had the opposite role when it was absent. This was because Co strengthened the Ni−O bond and decreased the surface area when added into pure NiO without BaCO3, while in the presence of BaCO3, it dramatically increased the surface area and amount of active sites of NiO.
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