Figure 3 (IMAGE)

Advanced Institute for Materials Research (AIMR), Tohoku University

Figure 3

Caption

Surface Pourbaix diagrams: (a) H coverage for MnO₂ slice with Mn₆c-O₃c chain, (b) oxygen species coverage for MnO₂ slab with Mn₅c and O₂c sites. (c) 2D surface Pourbaix diagram showing URHE vs. pH. (d) Geometric structures of MnO₂ and Gd-MnO₂ with various oxygen intermediates. (e) OER free energy diagrams for MnO₂ and Gd-MnO₂ at 1.23 V. Pink, green, red, and white spheres denote Mn, Gd, O, and H, respectively.

Credit

Hao Li et al.

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