Morphological and structural characterization of the 1% LSO sample. a) TEM image of 1% LSO. b) HRTEM image of 1% LSO, from the inset rectangle in (a). c,d) The SAED pattern and identities of the different diffraction rings, corresponding to the layered, spinel, and Li2SnO3 structures, respectively. e–i) STEM image and EDS maps of O, Mn, Ni, and Sn.
XAS Spectra of the four samples in TEY Mode. k) Ni L2,3 edge. l) Mn L2,3 edge. m) O K edge.