Fig. 5: XANES spectra for LTON measured at the La L3 edge and Ti K edge with references.
From: Examining the surface evolution of LaTiOxNy an oxynitride solar water splitting photocatalyst

a La-containing references. b LTON bulk comparing La before and after PEC. c LTON surface comparing La before and after PEC. d Ti-containing references. e LTON bulk comparing Ti before and after PEC. f LTON surface comparing Ti before and after PEC.