Fig. 7
From: In-depth analysis of FeNi-based nanoparticles for the oxygen evolution reaction
Fe: Ni = 2:3 NPs: (a) HAADF-STEM image, (b) EDS elemental mapping of O K, Fe K and Ni K X-ray lines, (c) Histogram of the size distribution of Fe and Ni NPs as detected by EDS in (b), separate EDS elemental mappings of Fe (d), Ni (e), and O (f).
