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. 2025 Jan 3;15(1):323–330. doi: 10.1039/d4ra07645a

Fig. 2. (A) SEM images of the nickel foam surface before and after acid treatment. (B) The CuCo2O4 nanoflower structure deposited on the nickel foam. (C) Magnified SEM image of CuCo2O4. (D) Magnified SEM image of g-C3N4/CuCo2O4. (E) TEM image of CuCo2O4 nanopetals. (F) HRTEM image of one CuCo2O4 nanopetal.

Fig. 2