Fig. 2: Structural characterizations.
From: Multicationic interactions mitigating lattice strain in sodium layered cathodes

a SEM image. b HRTEM and SAED images along the [010] zone axis. c EDX elemental mappings of Na, Ni, Mn, Cu, Fe, Ti, Sn, and O of CFTS5 cathodes. d TOF-SIMS 3D images of CFTS5 cathodes. XANES spectra at the (e) Ni, (f) Fe, (g) Mn, and (h) Cu K-edges of NFM and CFTS5 cathodes.