fig2

Figure 2. Design of PdMH nanocatalysts with different structures and reaction properties. (A) Different formation energy diagram of 2D RhPd and RhPdH alloy nanosheet; (B) formation enthalpies diagram of different ground-state RhPdH. (A and B) reproduced with permission from^[42]: Copyright 2022, American Chemical Society; (C) Pd and Rh 3d spectra of the RhPd-H NPs and RhPd NPs; (D) EXAFS spectra of the Pd K-edge; (E) FTIR spectra of the RhPd NPs, the RhPd-H NPs, and the simulated RhPd-H NPs, respectively; (F) FT-EXAFS spectra of the Pd K-edge; (C-F) reproduced with permission from^[47]: Copyright 2019, American Chemical Society; (G) schematic illustration of the synthesis of the IrPdH nanodendrites; (H) diagram of the HER free energy on IrPdH and its counterparts; (G and H) reproduced with permission from^[41]: Copyright 2022, Wiley-VCH.