Methanation of carbon dioxide over zirconium-tin oxide-based catalyst

An advanced catalyst, [Formula: see text], was synthesized for the methanation of [Formula: see text] under moderate conditions of atmospheric pressure and low [Formula: see text] concentration (4 vol%). The use of scrutinyite-type [Formula: see text] improved the catalytic activity, likely because of abundant oxygen vacancies for [Formula: see text] adsorption and good redox properties for cleavage of the C-O bond of adsorbed [Formula: see text]. The [Formula: see text] yield of 18 wt.% Ni/20 wt.% [Formula: see text] reached 61.0% with high [Formula: see text] conversion (58.4%) at 350°C using 1 vol% [Formula: see text]-4vol% [Formula: see text]-95 vol% Ar at atmospheric pressure.