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Figure 1. (A) Crystal structure and (B) structure anatomy of the Au₁₅Ag₂₃ nanocluster. Color labels: Au (gold), Ag (indigo), Br (green), C (25% gray); (C) The HER polarization curves of AuAg NC and AuAg NP in 0.5 M H₂SO₄; (D) The OER polarization curves of Au₁₅Ag₂₃/NiFe-LDH and NiFe-LDH in 1.0 M KOH; (E) The OWS performance of the AuAg NC || Au₁₅Ag₂₃/NiFe-LDH assembled electrolyzer and the AuAg NP || NiFe-LDH electrolyzer in 1.0 M KOH; (F) 50 h long-term OWS stability test. Reprinted with permission, copyright 2023 Elsevier Ltd^[103]. HER: Hydrogen evolution reaction; NC: nanocluster; NP: nanoparticle; OER: oxygen evolution reaction; LDH: layered double hydroxide; OWS: overall water splitting; RHE: reversible hydrogen electrode.