fig9

Figure 9. (A) Schematic of the formation mechanism for MoP@NPSC. (B and C) HRTEM images of MoP@NPSC. (D) HER polarization curves of bare EWC, MoP, MoP@NPSC, and Pt/C recorded in 1 M KOH at a scan rate of 5 mV s^-1. (A-D) Reproduced with permission from^[109]. Copyright 2020, American Chemical Society. (E) Preparation route of the MoP/MoNiP@NPC-800 catalyst via pyrolysis treatment. (F) TEM image of MoP/MoNiP@NPC-800 (inset: corresponding HRTEM image). (G) HER polarization curves in 1 M KOH, (H) EIS Nyquist plots of five POM-derived catalysts tested in 1 M KOH (inset: corresponding equivalent circuit). (E-H) Reproduced with permission from^[110]. Copyright 2024, Royal Society of Chemistry.