A series of Ag/MnO₂ catalysts employing MnO₂ nanorods (MnO₂-r) and nanoparticles (MnO₂-n) as the supports were prepared by conventional incipient wetness impregnation. Their structures had been characterized by BET, SEM, TEM, XRD, H₂-TPR, O₂-TPD and XPS. The catalytic activities in HCHO oxidation had also been investigated. The results showed that MnO₂-r and MnO₂-n exhibited different reducibility and surface active oxygen. Ag/MnO₂-r performed better reducibility and more surface active oxygen than that of Ag/MnO₂-n. It had observed that Ag/MnO₂-r could achieve complete oxidation of HCHO at 80 °C, due to the low-temperature reducibility and abundant surface active oxygen. Meanwhile, the Ag/MnO₂-r catalyst exhibited good stability.

通过常规的初湿浸渍法制备了一系列以MnO ₂纳米棒（MnO ₂ - r）和纳米颗粒（MnO ₂ - n）为载体的Ag / MnO ₂催化剂。通过BET，SEM，TEM，XRD，H ₂ -TPR，O ₂ -TPD和XPS对它们的结构进行了表征。还研究了HCHO氧化的催化活性。结果表明，MnO ₂ - r和MnO ₂ - n表现出不同的还原性和表面活性氧。的Ag / MnO的₂ - [R与Ag / MnO ₂ - n相比具有更好的还原性和更多的表面活性氧。已经观察到，由于低温还原性和丰富的表面活性氧，Ag / MnO ₂ - r可以在80°C的条件下实现HCHO的完全氧化。同时，对于Ag / MnO的₂ - [R催化剂表现出良好的稳定性。