fig3

Figure 3. (A) Schematic diagram of Ni-NC(p) preparation route. Reproduced with permission from Ref.^[12] (Copyright 2022, Wiley-VCH GmbH). (B) Cycle performance at 1 C with different host materials. Reproduced with permission from Ref.^[31] (Copyright 2021, American Chemical Society). (C) Mechanism diagram of porous carbon microspheres with multiple effects on Li-S batteries. Reproduced with permission from Ref.^[32] (Copyright 2021, Elsevier). (D) Schematic diagram of MoC/NC CSMS synthesis. Reproduced with permission from Ref.^[34] (Copyright 2021, The Royal Society of Chemistry). (E) S@Co_xS_y/MnS/NC@NC synthesis process schematic. Reproduced with permission from Ref.^[35] (Copyright 2022, Elsevier). (F) Schematic diagram of the interaction between two-dimensional MSi₂P₄ (M = V, Nb, and Ta) monolayers and LiPSs. Reproduced with permission from Ref.^[36] (Copyright 2022, American Chemical Society).