Fig. 2: Structure characterization of Rh-NA/RhO2. | Nature Communications

Fig. 2: Structure characterization of Rh-NA/RhO2.

From: Coupling of nanocrystal hexagonal array and two-dimensional metastable substrate boosts H2-production

Fig. 2: Structure characterization of Rh-NA/RhO2.

a Schematic representation for in-situ growth of molecular-scale-spacing, well ordered and single crystalline Rh array on substrate of P-Tri-RhO2 to obtain Rh-NA/RhO2 electrocatalyst. b The STEM image of Rh-NA/RhO2 and (c) its partial enlargement, clearly showing single crystalline Rh atom array on the surface of P-Tri-RhO2. d Simulated pattern for (c). e The enlarged STEM images of Rh-NA/RhO2, clearly showing {220} crystal lattices of Rh particles with well ordered arrangement: (20-2), (2-20) and (02-2) planes were marked with the cyan, yellow and white colors respectively. f The further magnification for STEM image of Rh-NA/RhO2. g Simulated STEM image for (f), clearly showing three layers structure of face-centered cubic Rh. The Rh atoms on different layers are marked with green, red and white colours. h The HAADF-STEM image and (i) the corresponding EDX line scanning profile of Rh-NA/RhO2. Figure 2a was made with the Cinema 4D Software.

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