fig9

Figure 9. (A) SEM image of the 30% V₂CT_x/rGO-CNT microgrid aerogel; (B) SAED patterns of V₂CT_x/rGO-CNT after sodium deposition; (C) radar-charts illustrating electrochemical performance comparison of various MXene-based sodium metal anodes^[140]; (D) SEM surface morphology of rGO-P; (E) VE and CE of cells (with rGO, rGO-P (4:1), rGO-P (3:1) and rGO-P) at 80 mA cm^-2; (F) energy efficiency (EE) curves at various current density values^[141], XPS spectra of 3DP-FeVO/rHGO cathodes for (G) V 2p_3/2 and (H) Fe 2p_3/2; and (I) areal capacities of 3DP-FeVO/rHGO with varied number of printing-layers (at 6 mA cm⁻²)^[142].