fig10

Figure 10. (A) Schematic diagram of quaternary nanoparticles and their voltage comparison. Reproduced with permission from Ref.[80] (Copyright 2021, American Chemical Society). (B) Synthetic method for the production of Co/Fe@NC and scanning electron microscope images of A-[Co, Fe·PPD·BTA], PC@C-[Co, Fe·PPD·BTA], and Co/Fe@NC. Reproduced with permission from Ref.[81] (Copyright 2022, American Chemical Society). (C) Illustration of the manufacturing of CoFeCe-2. Reproduced with permission from Ref.[20] (Copyright 2021, Wiley-VCH GmbH). (D) Preparation of arrays of NiCoFeO@NF nanowires. Reproduced with permission from Ref.[82] (Copyright 2021, Elsevier).