Carbon atoms in the interstitial sites of metal nanoparticles have strong influence on heterogeneous catalysis via electronic metal-support interactions (EMSI). Here, the Pt catalysts with interstitial C-Pt EMSI structures were first developed and identified to boost the removal of ozone (O₃) and methyl mercaptan (CH₃SH). Experimental results showed that the intrinsic activity of the catalysts with low Pt loading (wt%, 0.95 %) was 186 times higher than that of commercial MnO₂. This excellent catalytic performance was attributed to dual-site catalytic structures to promote the adsorption/activation of O₃ at interstitial C and capture/oxidation of CH₃SH at Pt simultaneously. More importantly, the interstitial C sites retained surface atomic oxygen (*O) with excellent reactivity and lowered the energy barrier of CS bond breakage, thus achieving efficient decomposition of CH₃SH into CO₂/SO₄^2-. This work provides high-performance catalysts and new mechanistic insights for the synergistic control of O₃ and CH₃SH.

金属纳米粒子间隙位点中的碳原子通过电子金属-载体相互作用 (EMSI) 对多相催化产生强烈影响。_{在这里，首先开发并鉴定了具有间隙 C-Pt EMSI 结构的 Pt 催化剂，以促进臭氧 (O 3} ) 和甲硫醇 (CH ₃ SH)的去除。实验结果表明，低Pt负载量（wt%，0.95%）催化剂的本征活性是商业MnO ₂的186倍。_{这种优异的催化性能归因于双中心催化结构，以促进O 3}在间隙C处的吸附/活化和CH ₃的捕获/氧化同时在 Pt 的 SH。更重要的是，间隙C位保留了具有优异反应活性的表面原子氧(*O)，降低了C -S键断裂的能垒，从而实现了CH ₃ SH高效分解为CO ₂ /SO ₄ ^2-。_{这项工作为 O 3}和 CH ₃ SH的协同控制提供了高性能催化剂和新的机理见解。