The KIT-6-templating and polyvinyl alcohol-protected NaBH₄ reduction methods were adopted to prepare the mesoporous manganese oxide (meso-MnO_y) and its supported Co, Pt, and Pt_xCo catalysts, respectively. Numerous techniques were used to characterize the physicochemical properties of the materials. Catalytic performance of the samples was evaluated for methanol combustion. All of the samples possessed a three-dimensionally ordered mesoporous structure and a surface area of 94–110 m²/g. The Co, Pt, and Pt_xCo nanoparticles (NPs) with an average size of 2.2–3.0 nm were uniformly dispersed on the surface of meso-MnO_y. The 0.70 wt% Pt_2.42Co/meso-MnO_y sample performed the best: the T_50% and T_90% (temperatures required for achieving methanol conversions of 50 and 90%, respectively) were 50 and 86 °C at a space velocity of 80,000 mL/(g h). The partial deactivation of the 0.70Pt_2.42Co/meso-MnO_y sample due to water vapor or carbon dioxide introduction was reversible. It is concluded that the excellent catalytic activity of 0.70 wt% Pt_2.42Co/meso-MnO_y was associated with its highly dispersed Pt_2.42Co alloy NPs, high adsorbed oxygen species concentration, good low-temperature reducibility, and strong interaction between Pt_2.42Co alloy NPs and meso-MnO_y.

采用KIT-6模板法和聚乙烯醇保护的NaBH ₄还原方法分别制备了介孔锰氧化物（meso-MnO _y）及其负载的Co，Pt和Pt _x Co催化剂。许多技术被用来表征材料的物理化学性质。对于甲醇燃烧，评估样品的催化性能。所有样品均具有三维有序介孔结构，表面积为94-110 m ² / g。平均尺寸为2.2–3.0 nm的Co，Pt和Pt _x Co纳米颗粒（NPs）均匀分散在中观MnO _y表面。0.70 wt％的Pt _2.42 Co /间位MnO_y样品表现最佳： T _50％和T _90％（分别达到_50％和_90％的甲醇转化所需的温度）在80,000 mL /（gh）的空速下分别为50和86°C。由于引入水蒸气或二氧化碳，0.70Pt _2.42 Co / meso-MnO _y样品的部分失活是可逆的。结论是0.70 wt％Pt _2.42 Co / meso-MnO _y的优异催化活性与其高度分散的Pt _2.42 Co合金NPs，高吸附氧物种浓度，良好的低温还原性以及Pt _2.42之间的强相互作用有关钴合金NPs和中观MnO _y。