fig8

From: Research on carbon-based and metal-based negative electrode materials via DFT calculation for high potassium storage performance: a review

Research on carbon-based and metal-based negative electrode materials via DFT calculation for high potassium storage performance: a review

Figure 8. (A) Schematic illustration of the synthesis process of PCF. (B) schematic of K-ion storage mechanism for CF and PCF. Copyright 2022, Chemical Engineering Journal^[62]. (C) Schematic illustration of the synthesis process of MHCNFs. Copyright 2021, ACS Applied Materials & Interfaces^[63]. (D) Schematic presentation of proposed growth mechanism of porous nanoflaked Co₃O₄. Copyright 2020, Journal of Power Sources^[66]. (E) The discharge curve (solid line) of the third cycle of HG-CNFs and the theoretical capacity contribution of each K-GIC transition reaction marked by dotted lines. Copyright 2020, Journal of Power Sources^[67].