fig12

From: Recent advances in earth-abundant first-row transition metal (Fe, Co and Ni)-based electrocatalysts for the oxygen evolution reaction

Figure 12. Morphological and structural characterization of Fe_11%-NiO/NF. (A, B) FESEM images with low and high magnification. (C) TEM image of mesoporous nanosheet. (D) HRTEM image of mesoporous nanosheet. (E) STEM image of mesoporous NS and corresponding elemental mapping images. (F) Graphical representation of formation process of Fe-doped NiO mesoporous NS array. (i) Solvothermal deposition of Fe-doped β-Ni(OH)₂ NS array precursor on Ni foam. (ii) Fe-doped NiO mesoporous NS array on Ni foam by calcination Fe-doped β-Ni(OH)₂ NS array precursor in air. Reproduced with permission. Copyright 2017, Elsevier^[120].