fig7

Figure 7. Robust Pt/TiO₂/Ni(OH)₂ nanosheet arrays for high current density alkaline water electrolysis. (A) the synthesis process of Pt/TiO₂/Ni(OH)₂/NF nanosheet arrays and (B) corresponding SEM image; (C) underwater contact angles of water droplets and the contact angles of gas bubbles on TiO₂/Ni(OH)₂/NF, Pt/TiO₂/Ni(OH)₂/NF, and Pt/TiO₂-Ni(OH)₂/NF after the HER stability test, respectively; (D) and (E) OER LSV curves and corresponding Tafel plots for NF, Ti₃C₂/NF, TiO₂/Ni(OH)₂/NF, RuO₂, and Pt/TiO₂/Ni(OH)₂/NF; (F) Overall water splitting LSV curves for Pt/TiO₂/Ni(OH)₂/NF couples and commercial Pt/C and RuO₂ couples; (G) stability test at 500 and 1,000 mA·cm^-2. These figures are quoted with permission from Kong et al.^[71]. NF: Nickel foam.