Fig. 4: Dynamic surface evolution and deformation of bulk phase in the electrochemical process. | Nature Communications

Fig. 4: Dynamic surface evolution and deformation of bulk phase in the electrochemical process.

From: Reconstructed Ir‒O‒Mo species with strong Brønsted acidity for acidic water oxidation

Fig. 4: Dynamic surface evolution and deformation of bulk phase in the electrochemical process.The alternative text for this image may have been generated using AI.

a, b TEM images of PIO (a) and 0.2Mo-PIO (b) at varied electrochemical cycles. Left, middle, and right panels correspond to 2, 10, and 20 cycles, respectively. The insets at the top left in (a, b) show the SAED patterns for each corresponding HRTEM images. The relevant interplanar spacing and dihedral angles are labeled. c, d EDS elemental mappings of Pr, Ir, and Mo elements for PIO (c) and 0.2Mo-PIO (d) post 20 LSV cycles. The yellow dashed lines indicate the metal enrichment and consumption at near-surface regions.

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