fig2

Figure 2. (A) Schematic illustration of [60] Fullerenoacetic acid; (B) TEM image of [60] Fullerenoacetic acid powder. TEM images of (C) P-NCM, and (D) C-NCM particles. TEM: Transmission electron microscope; C-NCM: C60-COOH modified NCM811; P-NCM: pristine NCM811.