fig7

Figure 7. (A) Synthesis of CoNiPt@C NFs catalysts (reproduced with permission from Wiley-VCH, copyright 2023)^[115]; (B) electrochemical reaction scheme for the preparation of M₃(HITP)₂ thin film on a conductive substrate (reproduced with permission from Wiley-VCH, copyright 2024)^[116]; (C) schematic showing the two-step calcination process for preparing a Ni_xCo_1-x@Ni_xCo_1-xO/NCNT catalyst on bimetallic MOF-1 (reproduced with permission from the American Chemical Society, copyright 2023)^[117]. MOFs: Metal-organic frameworks; ORR: oxygen reduction reaction; OER: oxygen evolution reaction; HER: hydrogen evolution reaction.