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(a) Volcano plot of activity versus OOH* binding free energy (GOOH*) for heteroatom-doped graphene. (b) Free-energy diagrams for graphitic N-doped graphene (N-Gr, U (limiting potential) = 0.799 V), graphitic boron-doped graphene (B-Gr, U = 0.805 V), and carbon on graphene edge (Gr-Edge, U = 0.625 V). Panels a and b were adapted from ref (203).
