Exploring thermally robust single atom catalysts (SACs) is of great significance. Here, we develop a universal strategy for stabilizing Pt atoms on the mono-oxygen vacancies of CeO₂ with diverse exposed facets. The stabilization mechanism was proposed that the formed Pt-O-Ce interface will be taken into distortion spontaneously to keep thermodynamics stable through strong metal-support interactions. The highest degree of Pt-O-Ce distortion is achieved over Pt1-CeO2{100} material, which exhibits exceptional efficiency and thermal stability for oxygenated hydrocarbon removal. The enhanced adsorption capacity of O2 and methanol confirmed in the distortion interface is seen as another crucial reason for improving the stability of SACs. Methanol oxidation on Pt1-CeO2{100} obeys the L-H mechanism under relatively low temperature and then goes through to the MVK mechanism with temperature increasing. We believe that these results would bring new opportunities in the fabrication of SACs and applications of them in thermal reactions.

探索具有热稳定性的单原子催化剂（SAC）具有重要意义。在这里，我们开发了一种稳定CeO ₂单氧空位上的Pt原子的通用策略具有不同的暴露面。提出了稳定机制，即形成的Pt-O-Ce界面将自发地变形，以通过强金属-载体相互作用保持热力学稳定。在Pt1-CeO2 {100}材料上实现了最高程度的Pt-O-Ce变形，该材料在去除含氧烃方面表现出出色的效率和热稳定性。在变形界面中确认的增强的O2和甲醇吸附能力被认为是提高SAC稳定性的另一个关键原因。Pt1-CeO2 {100}上的甲醇氧化在相对较低的温度下遵循LH机理，然后随着温度的升高而进入MVK机理。我们相信，这些结果将为SAC的制备及其在热反应中的应用带来新的机遇。