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以Mn(CH3COO) 2 ·4H2 O为前驱体 ,制备了MnOx/Al2 O3 和MnOx/BaO Al2 O3 系列催化剂 ,用X 射线衍射 (XRD)和程序升温还原 (TPR)进行了表征 ,考察了加入BaO对Al2 O3 的热稳定性及对MnOx/BaO Al2 O3 还原性能的影响。以甲烷燃烧为模型反应 ,考察了MnOx/BaO Al2 O3的催化活性。结果表明BaO Al2 O3 负载MnOx 催化剂对甲烷燃烧的活性比MnOx/Al2 O3 有明显提高 ,Ba在Al2 O3 中的最佳质量分数为 5 %
MnOx / Al 2 O 3 and MnOx / BaO Al 2 O 3 catalysts were prepared using Mn (CH 3 COO) 2 · 4H 2 O as precursors. The catalysts were characterized by XRD and TPR. Thermal stability of Al 2 O 3 and its effect on the reduction of MnOx / BaO Al 2 O 3. With methane combustion as a model reaction, the catalytic activity of MnOx / BaO Al 2 O 3 was investigated. The results show that the activity of BaO Al 2 O 3 supported MnOx catalyst for methane combustion is obviously higher than that of MnOx / Al 2 O 3, the best mass fraction of Ba in Al 2 O 3 is 5%