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Ce-incorporated Ni/γ-Al2O3 catalysts, with Ce loadings from 0wt% to 8wt%, were prepared by solution combustion method (SCM) and evaluated for CO methanation. Compared with Ce-free Ni/γ-Al2O3 catalyst, Ce-doped Ni/γ-Al2O3 catalysts retained higher low- and high-temperature catalytic activity. The Ce-doped Ni/γ-Al2O3 catalyst with Ce content of 6wt% (Ni–6Ce) maintained 100% CO conversion and nearly...
Ti-doped Ni/γ-Al2O3 catalysts with Ti loadings varying from 0wt% to 5wt% were prepared in glycol by solution combustion method for CO methanation. Compared to Ni/γ-Al2O3 catalyst, Ti-doped Ni/γ-Al2O3 catalysts exhibited higher activity. In particular, an optimal Ti-doped Ni/γ-Al2O3 catalyst with Ti content of 3wt% (G-3Ti) achieved almost 100% CO conversion and ∼98.7% CH4 selectivity at 300°C, 0.1MPa,...
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