fig8

Figure 8. Other transition metal-based electrocatalysts for OER in AEMWE. (A-C) Time-resolved in situ Raman spectra of catalysts in 1.0 M KOH^[135]. Copyright 2023 John Wiley & Sons; (D) Schematic diagram showing the fabrication process of the chemically etched CuCoO₄ catalyst^[63]. Copyright 2020 Elsevier; In situ Co K-edge XAS spectra of Co@MXene at 1 mA cm^-2 and 10 mA cm^-2 in (E) XANES and (F) FT-EXAFS^[138]. Copyright 2024 Elsevier; (G) Polarization curves, (H) Chronopotentiometric curves, and energetic efficiency of AEM water electrolyzer based on Co₄Fe₃@N-doped graphitic carbon catalyst^[139]. Copyright 2024 American Chemical Society. AEMWE: Anion exchange membrane water electrolysis; OER: oxygen evolution reaction; XAS: X-ray absorption spectroscopy; XANES: X-ray absorption near-edge structure; FT-EXAFS: Fourier-transformation extended X-ray absorption fine structure; AEM: anion exchange membrane.