fig9
Figure 9. (A) Schematic representation of the preparation of biochar-derived single-atom Ni catalysts with tunable porosity. (B) FECO comparison of hp-BioNC-Ni, me-BioNC-Ni, mi-BioNC-Ni, and lp-BioNC-Ni. (C) Potential ranges of state-of-the-art carbon-based SACs. This figure quoted with permission[155]. Copyright 2023, John Wiley and Sons.
