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. 2021 Dec 22;7(1):375–380. doi: 10.1021/acsenergylett.1c02405

Figure 2.

Figure 2

O 1s region in XPS (Al Kα, 70° grazing emission, pass energy 16 eV) of Rh stabilized by H2O on α-Fe2O3(11̅02). Spectra for (a) 0.025 ML and (b) 0.1 ML Rh deposited in 2 × 10–8 mbar H2O correspond to the STM images in panels b and c of Figure 1. The data (black points) were fitted (solid lines) with a component corresponding to lattice O2– anions at 529.9 eV and contributions from molecular H2O (532.9 eV) and OH (531.5 eV).18