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. 2020 May 15;8:390. doi: 10.3389/fchem.2020.00390

Figure 2.

Figure 2

(A) FESEM images of the 3D V2O5 architecture constructed from nanosheets (inset: TEM image of a nanosheet). (B) Power density and energy density of three electrodes. (C) Cycling performance of the 3D V2O5 architecture (Zhu et al., 2013). (D) Schematic drawing of the fabrication of the MnO2/Ti3C2 hybrid film, with molecular sheets stacked in a randomly interstratified manner. (E) Rate capability of the hybrid MnO2/Ti3C2 electrode compared with neat MnO2 and Ti3C2 electrodes. (F) Performance comparison of the MnO2/Ti3C2 hybrid with other reported materials on a Ragone plot (Liu W. et al., 2017). (G) Schematic of the coating of ZnCo2O4 nanoflakes with MnO2 nanosheets. (H) FESEM images and (inset) TEM images of ZnCo2O4 nanoflakes coated with MnO2 nanosheets. (I) Variation in Cs with respect to current density and cycling performance at 15 A/g for electrodes (Gao et al., 2017).