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. 2022 Jun 9;10:928429. doi: 10.3389/fchem.2022.928429

FIGURE 2.

FIGURE 2

(A) Schematic illustration of the synthesis procedure for the microporous carbon and sulfur composite with small sulfur molecules confined in the carbon micropores; (B) In situ UV-vis spectra; (C) Schematic illustration of the reaction mechanism of the ACC-40S cathode for RT Na–S batteries; (D) Schematic representation of the material processing steps of using sucrose (sugar) to produce microporous sodium sulfur battery cathodes; (E) Cycle performances of the ACC-40S electrode at 0.5 and 1 C for 700 and 2000 cycles, respectively; (F) Prolonged cycling performance of 1,500 cycles at 1C of S@C (Carter, et al., 2017; Guo, et al., 2020).