fig4

Figure 4. (A) Schematic diagram of the synthesis of Pt-Co alloy induced by CTS. (B) SEM image and EDX elemental distribution of Pt and Co in Pt-Co alloys (Pt:Co = 2:1). (C) Grazing incidence X-ray diffraction (GIXD) patterns of HCF, Pt, and Pt-Co alloys with different ratios. (D) ORR performance of the corresponding samples tested in 1.0 M KOH solutions. (E) Galvanostatic charge/discharge curves of seawater batteries with/without Pt-Co alloys on HCF at different current densities. (Reproduced with permission^[91]. Copyright 2021, Elsevier).