Figure 6
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(a) Schematic illustration of the Ru-SSC, Ru-DSC-I, and Ru-DSC-E. (b–d) TEM, HR-TEM, and HAADF-HRTEM images with enlarged selected areas and corresponding elemental mappings of Ru-DSC-I. (e, f) HER polarization curves and corresponding Tafel slots. (g) The EIS curves and corresponding equivalent circuit model for the Ru-SSC, Ru-DSC-I, and Ru-DSC-E at open-circuit voltages. (h) ECSA values of catalysts. (i, j) The velocity fields and streamline distributions of single-shell and double-shell models. (k, l) Corresponding velocity plots from A to B. (m, n) The 2D mapping images of the vortex fields in the single-shell and double-shell models. Adapted from Ref. [23]. Copyright 2024, American Chemical Society.
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