Although the degree of this weakening is smaller than that of the Sn7O6@Pt(111) interface structure. In the SnOx@Pt(111) system, the oxygen atom adsorption energy of the Pt substrate adjacent to SnOx is higher than that of the Pt surface that is not covered with SnOx, making the Pt surface more difficult to be oxidized. This explains the fundamental reason for the higher stability of SnOx-Pt/C catalyst.