fig10

Figure 10. (A) Synthesis pathways for the Pd/NiCo₂O₄ composite^[156]. This figure is quoted with permission from Senthil et al; (B) Projected electronic density of states of d orbitals and total electronic density states plots for Ni atom in Ti₃C₂T_x, Ti₃C₂T_x, and Ni SACs/Ti₃C₂T_x; (C) and (D) Schematic for the stepwise N₂H₄ molecular dehydrogenation process on the Ni NPs/Ti₃C₂T_x and the Ni SACs/Ti₃C₂T_x; (E) Energy profile for HzOR on Ni NPs/Ti₃C₂Tx and Ni SACs/Ti₃C₂T_x^[153]. This figure is quoted with permission from Zhou et al.; (F) In situ/operando Raman spectra of the Pd/NiCo₂O₄-2 composite during the HzOR in a 1M KOH/0.5M N₂H₄ solution at various potentials [0-0.2 V (vs. RHE)]; (G) Gibbs free energy plots of the HzOR on the Pd/NiCo₂O₄ composite catalyst. (H) Proposed HzOR process on the Pd/NiCo₂O₄ composite catalyst^[156]. This figure is quoted with permission from Senthil et al. SACs: Single-atom catalysts; RHE: reversible hydrogen electrode.