fig4
Figure 4. (A) Schematic illustration of the preparation process for pitaya-structured FeS2@C. (B-E) electrochemical performance of FeS2@C: (B) initial three charge/discharge profiles, (C) cycling performance at 0.6 A g-1, (D) charge/discharge profiles from 0.1, 0.2, 0.4, 0.8, 1.6 to 3.2 A g-1, respectively, (E) rate performance[41]. Copyright 2017, American Chemical Society.
