Ni-Based Catalysts on Ternary LaCeY Oxide Supports for Dry Reforming of Methane

Supported 10%Ni/LaCeY(n)O x catalyst with different Y content (n = 0.5–10.0 mol.%) are studied in the present work. Ternary oxide supports are synthesized using citrate method. Structure and phase composition of supports and catalysts are characterized by different physical-chemical methods. Formation of active surface depending on yttrium introduction route is studied. Variation of yttrium content allows determining the optimal dopant content (0.5–1.0 mol.% Y) that sustains activity and stability of catalysts in DRM. The most stable Ni/LaCeY(1)O x catalyst shows a decrease of the CH 4 and CO 2 conversions from initial values by 7.05 % and 4.52 %, respectively. Multi-walled carbon nanotubes with open edge Ni particles are dominant carbon species in spent Ni/LaCeY(1)O x catalyst.