The experimental results indicate that the copper-manganese oxide appears in an optimal oxidizability, and during this state,the activity and the thermal stability of catalyst reach an optimum value.

• 实验结果表明，铜锰氧化物有一最佳氧化态，在该状态下催化剂的活性、热稳定性均达到最佳值，并且制备方法简单、易洗涤。