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. 2023 Apr 30;15:110. doi: 10.1007/s40820-023-01091-9

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© The Author(s) 2023

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Fig. 7 — a, b Nonlinear fitting curves of the typical reaction potential versus the CN (Cu–N and Cu–Cu bonds) among Cu0.7/NTC, Cu1.5/NTC, and Cu3.2/NTC electrocatalysts. c The possible electrochemically driven remodeling and oxidation-driven redispersion mechanisms for Cu1.5/NTC