Producing the strong metal-support interaction (SMSI) interface and highly reactive oxygen species is a great challenge for catalytic oxidation of formaldehyde (HCHO) at room temperature over supported metal catalysts. Herein, we report a conceptual oxygen vacancy (V_O) associated SMSI interface of Pt-ZrO₂ nanoparticles for HCHO catalysis at room temperature, exhibiting interfacial dependent reactive oxygen species (O*) formation. The V_O on the ZrO₂ support captures and activates the molecular O₂, then proceeds to generating the reactive oxygen atom (O*) with a lower activation barrier of 0.3 eV. The generated O* tends to link the (1 1 0) surface of ZrO₂ and the (1 1 1) surface of Pt as an electronic transmission channel for the selective catalytic oxidation of HCHO adsorbed on the (1 1 0) surface of ZrO₂, accelerating the direct generation of formate species and mineralization of HCHO. The Pt-V_O-ZrO₂ achieves high HCHO removal and HCHO conversion (>95%) at 20 °C. These findings will consolidate the fundamental theories of room temperature catalytic reactions via constructing the SMSI interface engineering for wide environmental applications.

产生强金属-载体相互作用 (SMSI) 界面和高活性氧物种是在负载金属催化剂上在室温下催化氧化甲醛 (HCHO) 的巨大挑战。在此，我们报告了在室温下用于 HCHO 催化的 Pt-ZrO ₂纳米粒子的概念性氧空位 ( VO ) 相关 SMSI 界面，表现出界面依赖性活性氧 ( _{O *) 形成。}ZrO ₂载体上的V _O捕获并活化分子O ₂，​​然后继续生成具有0.3 eV的较低活化势垒的活性氧原子(O*)。生成的 O* 倾向于连接ZrO的 (1 1 0) 表面  ₂和Pt的（1  1  1）表面作为电子传输通道选择性催化氧化吸附在ZrO ₂  （1 1 0）表面的HCHO ，加速了甲酸盐的直接生成和HCHO的矿化。Pt -V _O -ZrO ₂在 20 °C 时实现了高 HCHO 去除率和 HCHO 转化率 (>95%)。这些发现将通过构建适用于广泛环境应用的 SMSI 界面工程来巩固室温催化反应的基本理论。