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This study investigated dry reforming of methane (DRM) over combined catalysts supported on γ-Al₂O₃ support doped with 3.0 wt. % TiO₂. Physicochemical properties of all catalysts were determined by inductively coupled plasma/mass spectrometry (ICP-MS), nitrogen physisorption, X-ray diffraction, temperature programmed reduction/oxidation/desorption/pulse hydrogen chemisorption, thermogravimetric analysis, and scanning electron microscopy. Addition of CeO₂ and MgO to Ni strengthened the interaction between the Ni and the support. The catalytic activity results indicate that the addition of CeO₂ and MgO to Ni did not reduce carbon deposition, but improved the activity of the catalysts. Temperature programmed oxidation (TPO) revealed the formation of carbon that is mainly amorphous and small amount of graphite. The highest CH₄ and CO₂ conversion was found for the catalyst composed of 5.0 wt. % NiO-10.0 wt. % CeO₂/3.0 wt. %TiO₂-γ-Al₂O₃ (Ti-CAT-II), resulting in H₂/CO mole ratio close to unity. The optimum reaction conditions in terms of reactant conversion and H₂/CO mole ratio were achieved by varying space velocity and CO₂/CH₄ mole ratio.