fig1

Figure 1. Structural stability of TM₁-B₂N₂/G catalysts. (A-C) The geometric structure of TM₁-B₂N₂/G catalysts; (D) The binding energy (E_b) of TM₁-B₂N₂/G catalysts; (E) The difference between binding energy and cohesion energy (E_b - E_c) of TM₁-B₂N₂/G catalysts.