Fig. 3

State of TiS₂ after 46 days oxidation in air. a HAADF of TiS₂ flake from which b–e were acquired. Inserted are FFTs from the middle (green) and edge (red) showing loss in crystallinity in the oxide, b Ti L₃ EELS map, c O K EELS map, d S K EDX map, e Map of the shift of the maximum of the Ti L₃ edge. Scale bars on b–e are 20 nm