【摘要】 利用程序升温还原研究Mn₂O₃/γ-Al₂O₃体系,测定其在还原后的室温吸氧性能。实验结果表明,与纯Mn₂O₃相比,Mn₂O₃单层分散到γ-Al₂O₃表面上,还原温度降低,还原后单位锰吸氧量大大提高;吸氧性能最好的Mn₂O₃/γ-Al₂O₃样品的锰含量在Mn₂O₃的单层分散阈值附近。更多还原

【Abstract】 Mn₂O₃/γ-Al₂O₃ system has been studied by using TPR technique.When Mn₂O₃ is dispersed onγ-Al₂O₃ as a monolayer,it can be reduced at lower temperature in comparision with pureMn₂O₃.When Mn₂O₃ is reduced,it can absorb oxygen at room temperature.The Mn₂O₃/γ-Al₂O₃sample with a Mn₂O₃ loading close to its monolayer dispersion threshold value has the highest oxy-gen-absorption capacity after reduction.更多还原