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Article Dans Une Revue Catalysis Communications Année : 2016

Novel Ni-La-hydrotalcite derived catalysts for CO2 methanation

Résumé

A series of hydrotalcite-derived mixed oxides containing Ni/Mg/La/Al obtained by thermal decomposition were characterized by XRD, CO 2-TPD and H 2-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 2 wt.% of lanthanum leads to an increase of the catalytic performance at temperatures from 250 to 300°C with CO 2 conversion of 46.5-75% and CH 4 selectivity of 99-98%. The activity is directly connected with basicity that increases with the incorporation of La into the HT-derived catalysts.

Domaines

Catalyse
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Dates et versions

hal-01318308 , version 1 (19-05-2016)

Identifiants

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Dominik Wierzbicki, Radosław Debek, Monika Motak, Teresa Grzybek, Maria Elena Gálvez, et al.. Novel Ni-La-hydrotalcite derived catalysts for CO2 methanation. Catalysis Communications, 2016, 83, pp.5-8. ⟨10.1016/j.catcom.2016.04.021⟩. ⟨hal-01318308⟩
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