Figure 3

(A–C) HRTEM images of pristine SnS2. (A) Shows rolled and flat surface morphology in BF-TEM, (B,C) top and side view of SnS2. (D–K) HRTEM images after EADD synthesis of SnS2 @ 50 mV/s. (D) Shows rolled and flat morphology in annular dark feild (ADF) TEM, (E) the distorted phase of SnS2, (F) HRTEM micrograph showing SnS2–SnS heterostructure, (G) atomic arrangement of SnS2-SnS heterostructure, (H,I) FFTs images of SnS2 and SnS phases, (J,K) Pt distribution inside SnS2 layer.