A Y₂O₃-Co₃O₄ catalyst was prepared by an innovative co-precipitation method at the solution boiling temperature, and tested for the N₂O decomposition reaction. The catalyst exhibited a higher catalytic activity than that prepared by the common co-precipitation method at 90 °C. In addition, the catalytic performance of the Y₂O₃-Co₃O₄ catalyst was further enhanced by K-promoter, which might be related to the weakening of CoO bond and higher concentration of adsorbed oxygen (O_α) on the catalyst surface. Even under the co-presence of oxygen and steam in the feed stream, the K/Y₂O₃-Co₃O₄ catalyst showed good catalytic stability and maintained 100% conversion of N₂O after a continuous reaction at 400 °C for 30 h.

通过创新的共沉淀法在溶液沸腾温度下制备了AY ₂ O ₃ -Co ₃ O ₄催化剂，并进行了N ₂ O分解反应的测试。该催化剂比在90°C下通过常规共沉淀法制备的催化剂具有更高的催化活性。此外，钾促进剂进一步提高了Y ₂ O ₃ -Co ₃ O ₄催化剂的催化性能，这可能与Co O键的弱化和高浓度的吸附氧（_Oα）在催化剂表面上。即使在进料流中同时存在氧气和蒸汽，K / Y ₂ O ₃ -Co ₃ O ₄催化剂也表现出良好的催化稳定性，并且在400°C下连续反应400°C后仍保持100％的N ₂ O转化率。30小时