Orbital stabilisation effect in Sb-based single-atom catalyst (IMAGE)
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Fig. 2. Electrochemical Performance and Mechanistic Insights for ORR. (a) Histogram of important ORR performance, (b) LSV curves before and after ADT of SbAC-NC-5. (c) Comparison between E1/2 loss after ADT of SbAC-NC-5 and other ORR catalysts (w=10,000). (d) Radar comparison chart of common ORR performance for SbNx configuration. (e) Galvanostatic charge–discharge cycling curves for the rechargeable ZABs at the current density of 10 mA cm-2. (f) In-situ ATR-SEIRAS spectra at different potentials of SbAC-NC-5 in 0.1 mol L−1 KOH saturated with O2. (g) Different reaction intermediates of SbN5 during the reaction. (h) Gibbs free energy variation for SbNx configuration. (i) Crystal orbital hamilton population (COHP) analysis of the SbN5 conformation in the *OH state. (j) Bonding and dissociation energies of Sb centres in different SbNx configurations.
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