Figure 6.

(A) Cycling performance of a sulfur–hollow carbon nanospheres cathode composite with and without cobalt nanoparticles. Figure 6A was reproduced from [45] (© 2018 B. Zhang et al., published by Springer Nature, distributed under the terms of the Creative Commons Attribution 4.0 International License, https://creativecommons.org/licenses/by/4.0). (B) Schematic illustration of the S@Co/C/rGO composite electrode and its cycling performance in solid- and liquid-state RT/Na–S batteries. Figure 6B was reprinted from [34], Chemical Engineering Journal, vol. 388, by Q. Ma, G. Du, B. Guo, W. Tang, Y. Li, M. Xu, C. Li, "Carbon-wrapped cobalt nanoparticles on graphene aerogel for solid-state room-temperature sodium-sulfur batteries", article no. 124210. Copyright (2020), with permission from Elsevier. This content is not subject to CC BY 4.0. (C) Schematic illustration of the hierarchical FeS₂@NCMS/S composite. Figure 6C was reproduced with permission from [48], Z. Yan et al. "A High-Kinetics Sulfur Cathode with a Highly Efficient Mechanism for Superior Room-Temperature Na–S Batteries", Adv. Mater., with permission from John Wiley and Sons Copyright © 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. This content is not subject to CC BY 4.0. (D) Schematic diagram on the catalytic mechanism of the VC-CNFs composite with Na₂S₆. Figure 6D was reprinted from [12], Chemical Engineering Journal, vol. 395, by W. Tang, W. Zhong, Y. Wu, Y. Qi, B. Guo, D. Liu, S-J. Bao, M. Xu, "Vanadium carbide nanoparticles incorporation in carbon nanofibers for room-temperature sodium sulfur batteries: Confining, trapping, and catalyzing", article no. 124978. Copyright (2020), with permission from Elsevier. This content is not subject to CC BY 4.0. (E) Schematic representation of the interactions of MnO₂ with different sodium polysulfides and polythionate complexes as well as the cycling performance of CC@MnO₂@Na₂S₆ at 0.2 A·g⁻¹. Figure 6E was reprinted from [51], Energy Storage Materials, vol. 20, by A. Kumar, A. Ghosh, A. Roy, M. R. Panda, M. Forsyth, D. R. MacFarlane, S. Mitra, "High-energy density room temperature sodium-sulfur battery enabled by sodium polysulfide catholyte and carbon cloth current collector decorated with MnO₂ nanoarrays", pages no. 196-202. Copyright (2019), with permission from Elsevier. This content is not subject to CC BY 4.0.