This research investigates the effect of doping Ni/La₂O₃+ZrO₂ with nitrates of Ca, Cr, Ga, and Gd on the conversion of the feed and H₂/CO molar ratio. The development of these catalysts is intended to tackle inefficiency of dry reforming of CH₄ which stems from deactivation and sintering of active metal. All promoted catalysts perform better than the un-promoted catalyst. Cr promoted sample gives the best performance with CH₄ and CO₂ conversion averaging 83 and 88% respectively. Also, it maintains good stability. The relative ease of reducing the catalyst plus its porous nature are responsible for its performance. Ca promoted sample has the same area as that of the support indicating the movement of Ni–Ca out of the pores of the support during calcination. According to thermogravimetric analysis, the un-promoted catalyst records the highest amount of carbon while the Ca promoted sample has about 18%.

本研究研究了用Ca，Cr，Ga和Gd的硝酸盐掺杂Ni / La ₂ O ₃ + ZrO ₂对进料转化率和H ₂ / CO摩尔比的影响。这些催化剂的开发旨在解决由活性金属的失活和烧结引起的CH ₄干重整的低效率。所有助催化剂均比未助催化剂表现更好。Cr促进的样品在CH ₄和CO _2下具有最佳性能转化平均分别为83％和88％。而且，它保持良好的稳定性。还原催化剂的相对容易性及其多孔性质是其性能的原因。钙促进的样品具有与载体相同的面积，表明在煅烧过程中Ni–Ca从载体的孔中移出。根据热重分析，未促进的催化剂记录了最高量的碳，而经钙促进的样品约占18％。