fig1
Figure 1. (A) SEM micrographs of EG samples at different magnifications. (B) Rate performance of EG30 and graphite[63]. (C) Rate capabilities of Al2O3@graphite electrode[65]. (D) Schematic illustration of the synthesis of P-doped mesoporous carbons[73]. Reproduced from Refs.[63,65,73] with permission from Elsevier. EG: Expandable graphite; EG30: the thermal exfoliation process of EG maintains 30 min; PU foam: polyurethane foam; EISA: evaporation induced self-assembly.
