Figure 3

(A) X-ray diffraction pattern of manganese oxy-sulfide. The overall pattern comprises the mixed phases of MnS (α, β and γ) and off-stoichiometric manganese oxide (MnO1+X), red symbol, lattice structure. (B) The survey spectrum (XPS) of manganese oxy-sulfide (main-panel). In-set (I), (II) and (III) exhibit the core levels Mn 2p, S 2p and O1s spectra, respectively.