Fig. 4: The structure decoration around Pt single atoms.

a Structure before water treatment, Pt/CF(110). b Structure after water treatment, Pt/CF(110)-W. BL: Pt-O or O-H bond length, BO (numbers in parentheses): Pt-O bond order. BL and BO are quoted beside the bond they belong to, numbers in square brackets are Bader charges of Pt atoms. Colors of atoms: H: white, O: red, Fe: brown, Co: blue, Pt: silver.