Catalytic Materials Based on Hydrotalcite-Like Aluminum, Magnesium, Nickel, and Cobalt Hydroxides: Effect of the Nickel/Cobalt Ratio on the Results of Partial Oxidation and Dry Reforming of Methane to Synthesis Gas

Catalysts for the partial oxidation and dry reforming of methane based on hydroxo salts [AlMg2NixCoy(OH)6.08][(NO3) ⋅ nH2O], where x, y = 0, 0.005, 0.01, 0.02, 0.03, 0.035, and 0.04, with a hydrotalcite-like structure and a total Ni and/or Co content of no more than 2 wt % have been synthesized. It has been shown that Ni–Co catalysts with x = 0.03–0.035 and y = 0.005–0.01 provide a synthesis gas yield of 97–99% in both processes. At a low cobalt loading, the catalysts hardly form carbon nanotubes or other carbon depos-its.