Figure 5
From: Electrochemical water oxidation by simple manganese salts
XANES (a) and first derivative spectra of MWA and MWB along with references. (b) Linear combination fitting of MWA while considering MWB, layered Mn oxide and MnO2 as components. (c) k-weight EXAFS spectra of various materials. (d) In comparison to MWB, the white-edge of MWA has shifted to higher energies, which confirms higher oxidation states of manganese sites in this material. A linear combination fitting showed that MWA consists of 72% MnO2 and 28% MWB.
