fig12

Figure 12. (A) XRD images of CeO₂/NiCo₂S₄; (B) LSV curves of as-prepared catalysts. This figure is quoted with permission from Wang et al.^[114]; (C) FFT pattern of 4CeO₂@SrIrO₃; (D) LSV curve of the commercial IrO₂, SrIrO₃, 2CeO₂@SrIrO₃, 4CeO₂@SrIrO₃ and 8CeO₂@SrIrO₃ electrocatalysts. This figure is quoted with permission from You et al.^[22]; (E) HRTEM image, the marked area (orange line) presents the defects; (F) LSV curves of RuO₂ and the prepared ZIF-67@Co(OH)₂, Co@Co(OH)₂, Ce-Co(OH)₂ and Ce_0.21@Co(OH)₂ in 1.0 M KOH. This figure is quoted with permission from Zhou et al.^[118]; (G) Mo 3d spectra for Ru₃MoO_x and Ru₃MoCeO_x; (H) Ce_3d spectra for Ru₃CeO_x and Ru₃MoCeO_x. Erbium-based; (I) LSV curves for RuO₂, Ru₃CeO_x, Ru₃MoO_x, Ru₃MoCeO_x, and Ru₃MoCe₂O_x. This figure is quoted with permission from He et al.^[120]. RHE: Reversible hydrogen electrode; XRD: X-ray diffraction; LSV: linear sweep voltammetry; FFT: fast Fourier transform; HRTEM: high-resolution transmission electron microscopy; ZIF: zeolitic imidazolate framework.