Recently perovskite materials have received extensive attention for dry reforming of methane (DRM) reaction due to their stable ordered crystalline structure. In this work, materials with ionic substitutions of Ru, Pt, and Pd in LaAlO₃ perovskite were synthesized using solution combustion synthesis route. The characterizations of catalysts were carried out by XRD, TEM, XPS, STEM, and BET surface area analyser. H₂-TPR was performed to examine the strong metal support interaction between active metal and support that improve the resistance of the perovskite structure. The catalytic activity of these catalysts was examined for DRM. Stable conversion of both CH₄ and CO₂ were observed on stability test experiments for 50 h over Ru substituted LaAlO₃ catalyst. This indicates that it is a highly stable and coke resistant catalyst for DRM. TEM and STEM results show the deactivation of Pt and Pd incorporated LaAlO₃ due to sintering and carbon deposition. The apparent activation energy was determined from Arrhenius plot which was found to be 86 kJ mol⁻¹ and 72 kJ mol⁻¹ over LaAl_0.98Ru_0.02O_3-δ for CH₄ and CO₂ consumption, respectively. DRM reaction mechanism was proposed via formation of oxycarbonates over LaAl_0.98Ru_0.02O_3-δ.

近年来，钙钛矿材料因其稳定的有序晶体结构而在甲烷的干重整（DRM）反应中受到广泛关注。在这项工作中，使用溶液燃烧合成路线合成了LaAlO ₃钙钛矿中具有Ru，Pt和Pd离子取代的材料。催化剂的表征通过XRD，TEM，XPS，STEM和BET表面积分析仪进行。进行H ₂ -TPR以检查活性金属与载体之间的强金属载体相互作用，其改善了钙钛矿结构的电阻。检查了这些催化剂的催化活性对DRM的影响。CH ₄和CO _2的稳定转化在Ru取代的LaAlO ₃催化剂上进行50小时的稳定性测试实验时观察到。这表明它是用于DRM​​的高度稳定和抗焦炭的催化剂。TEM和STEM结果表明，由于烧结和碳沉积，使掺入Pt和Pd的LaAlO ₃失活。根据Arrhenius曲线确定了表观活化能，发现在消耗La ₄，CO ₂和LaAl _0.98 Ru _0.02 O _{3- δ时}，表观活化能分别为86 kJ mol ^-1和72 kJ mol ^-1。通过在LaAl _0.98 Ru _0.02上形成碳酸盐提出了DRM反应机理O _{3- δ}。