A Pt–Co₃O₄ catalyst named Pt–Co(OH)₂–O was prepared by metal-organic templates (MOTs) conversion and used for catalytic oxidation of toluene. Through the conversion, the morphology of catalysts transformed from rhombic dodecahedron to nanosheet and the coated Pt nanoparticles (NPs) were more exposed. The Binding energy shift in XPS test indicates that the strong metal-support strong interaction (SMSI) has enhanced, and the physicochemical changes caused by it are characterized by other techniques. At the same time, Pt–Co(OH)₂–O showed the best catalytic performance (T₅₀ = 157 °C, T₉₀ = 167 °C, E_a = 40.85 kJ mol⁻¹, TOF_Pt = 2.68 × 10⁻³ s⁻¹) and good stability. In addition, the in situ Diffuse Reflectance Infrared Fourier Transform Spectroscopy (DRIFTS) studies have shown that because SMSI weakened the Co–O bond, the introduction of Pt NPs can make the migration of oxygen in the catalyst easier. The change of binding energy change and the content of various species in the quasi in situ XPS experiment further confirmed that the Pt–Co(OH)₂–O catalyst has stronger SMSI, resulting in its stronger electron transfer ability and oxygen migration ability, which is conducive to catalytic reactions. This work provides new ideas for the development of supported catalysts and provides a theoretical reference for the relevant verification of SMSI.

通过金属有机模板（MOTs）转化制得了名为Pt-Co（OH）₂ -O的Pt-Co ₃ O ₄催化剂，并将其用于甲苯的催化氧化。通过转化，从菱形十二面体转变为纳米片的催化剂的形态和包覆的Pt纳米粒子（NP）更加暴露。XPS测试中的结合能位移表明，强金属-支持物之间的强相互作用（SMSI）已增强，并且由其引起的理化变化还可以通过其他技术来表征。同时，Pt-Co（OH）₂ -O表现出最佳的催化性能（T ₅₀  = 157°C，T ₉₀  = 167°C，E _a  = 40.85 kJ mol ^-1，TOF_Pt  ＝ 2.68×10 ^-3 s ^-1），稳定性好。此外，原位漫反射红外傅里叶变换光谱（DRIFTS）研究表明，由于SMSI削弱了Co-O键，Pt NP的引入可以使氧在催化剂中的迁移更容易。准原位XPS实验中结合能的变化和各种物质的含量进一步证实了Pt–Co（OH）₂-O催化剂具有更强的SMSI，从而具有更强的电子转移能力和氧迁移能力，这有利于催化反应。这项工作为开发负载型催化剂提供了新思路，并为SMSI的相关验证提供了理论参考。