fig7

Figure 7. (A) Schematic diagram of the synthesis of Pt₁/NC SACs^[150]; (B) Catalytic activities of Pt₁/NC SACs for hydrogenation of 3-nitrophenylacetylene at different temperatures^[150]; (C) The structure diagram of Pt₁/N-MoO₂^[151]; (D) Anti-CO poisoning ability over Pt/C, Pt NPs/MoO₂, Pt₁/MoO₂, and Pt₁/N-MoO₂ under 20 bar H₂ containing 0.5% CO^[151]; (E) TOF value of per Pt sites for Pt/C, Pt NPs/MoO₂, Pt₁/MoO₂, and Pt₁/N-MoO₂ H₂, H₂ containing 0.5% CO, and H₂ containing 5% CO^[151]; (F) Schematic diagram of the synthesis of Co₁/NSC-AT^[158]; (G) The structural models of Co-N₄, Co-N₃P₁, Co-N₄P₁-Z and Co-N₄P₁^[161]; (H) The catalytic performance of various catalysts for the p-NB selective hydrogenation^[161]; (I) The reaction rates^[161]. Pt₁: Single Pt atoms; SAC: single-atom catalyst; NP: nanoparticle; TOF: turnover frequency; Co₁/NSC-AT: Co single atoms on N,S-co-doped hierarchical porous carbon, after treatment.