Cobalt (Co) catalysts supported on hydrotalcite (MgAl) and metal oxides (MgO, Al₂O₃) have been synthesized by co-precipitation methods for CO₂ reforming of methane. It is found that the Co/MgAl catalyst possessed excellent initial activity and outstanding long-term stability. An activation process was observed on the Co/MgO catalyst, which was followed by moderate deactivation. The Co/Al₂O₃ catalyst suffered severe deactivation although it exhibited relatively good initial activity. The structural characterizations demonstrate that the exceptional reforming performance of the Co/MgAl catalyst was related to high specific surface area, abundant medium basic sites, tiny Co nanoparticles and strong metal-support interactions.

通过共沉淀法对甲烷进行CO ₂重整，合成了负载在水滑石（MgAl）和金属氧化物（MgO，Al ₂ O ₃）上的钴（Co）催化剂。发现Co / MgAl催化剂具有优异的初始活性和出色的长期稳定性。在Co / MgO催化剂上观察到活化过程，然后进行适度的失活。Co / Al ₂ O ₃催化剂虽然表现出相对较好的初始活性，但却严重失活。结构表征表明，Co / MgAl催化剂出色的重整性能与高比表面积，丰富的中等碱性位点，微小的Co纳米颗粒和强金属-载体相互作用有关。