The effect of different supports (Al₂O₃, CeO₂, MgAl₂O₄, SiO₂, and ZrO₂) on the catalytic performance of an aluminum-incorporated cobalt catalyst in the dry reforming of methane (DRM) was investigated. DRM observations revealed the highest CH₄ and CO₂ conversion levels with CoAl/MgAl₂O₄. These levels decreased in the order: CoAl/MgAl₂O₄ > CoAl/Al₂O₃ > CoAl/ZrO₂ > CoAl/CeO₂ > CoAl/SiO₂. Due to the proximity of the Co and Mg ionic radii, the cobalt species strongly interacted with MgAl₂O₄ resulting in the formation of a solid solution. The CH₄/CO₂ thermogravimetric results indicated that the performance of the CoAl/MgAl₂O₄ catalyst was superior to that of the other catalysts. This was attributed to the balance between the rates of carbon deposition from CH₄ decomposition and surface oxidation from CO₂ dissociation. In addition, the apparent activation energy on this catalyst (54.6 kJ/mol) was much lower than that of CoAl/Al₂O₃ (77.5 kJ/mol), indicating a marked improvement in CH₄ reforming activity for CoAl/MgAl₂O₄. Overall, the characterization results revealed that the catalytic performance was influenced by the synergistic effect between CoAl and its support.

研究了不同载体（Al ₂ O ₃，CeO ₂，MgAl ₂ O ₄，SiO ₂和ZrO ₂）对铝结合钴催化剂在甲烷干重整中的催化性能的影响。DRM观察显示，CoAl / MgAl ₂ O ₄具有最高的CH ₄和CO ₂转化水平。这些水平依次降低：CoAl / MgAl ₂ O ₄  > CoAl / Al ₂ O ₃  > CoAl / ZrO ₂  > CoAl / CeO ₂  > CoAl / SiO ₂。由于Co和Mg离子半径的接近，钴物质与MgAl ₂ O ₄强烈相互作用，导致形成固溶体。CH ₄ / CO ₂热重分析结果表明，CoAl / MgAl ₂ O ₄催化剂的性能优于其他催化剂。这归因于CH ₄分解产生的碳沉积速率与CO ₂分解产生的表面氧化速率之间的平衡。另外，在该催化剂上的表观活化能（54.6 kJ / mol）比CoAl / Al ₂ O ₃的表观活化能低得多。（77.5 kJ / mol），表明CoAl / MgAl ₂ O _4的CH ₄重整活性显着提高。总体而言，表征结果表明，催化性能受CoAl及其载体之间协同作用的影响。