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![Recent advances and perspectives of microsized alloying-type porous anode materials in high-performance Li- and Na-ion batteries](https://image.oaes.cc/e5a27bfe-a8ab-45f1-8d99-a2e3af359ad9/4937.fig.5.jpg)
Figure 5. Schematic illustrations of porous metal preparation via dealloying fabrication methods. (A) Schematic illustration of fabrication procedures of P-Sb. Reproduced with permission[37] (Copyright 2020, Elsevier B.V.). (B) Preparation of bulk 3D porous-Si by dealloying in a metallic melt. Reproduced with permission[47] (Copyright 2014, ACS Publications). (C) Schematic illustration of fabrication procedures of 3D porous Si. Reproduced with permission[48] (Copyright 2016, Elsevier B.V.). (D) Schematic illustration for the multi-step synthesis of ultrafine Si porous structures. Reproduced with permission[49] (Copyright 2020, Kluwer Academic Publishers).