Abstract
A series of hydrotalcite-derived mixed oxides containing Ni/Mg/La/Al obtained by thermal decomposition were characterized by XRD, CO2-TPD and H2-TPR. The results confirm the formation of periclase-like materials, and the addition of lanthanum resulted in the formation of a separate phase. The incorporation of 2wt.% of lanthanum leads to an increase of the catalytic performance at temperatures from 250 to 300°C with CO2 conversion of 46.5–75% and CH4 selectivity of 99–98%. The activity is directly connected with basicity that increases with the incorporation of La into the HT-derived catalysts.
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