Fig. 1. Schematic illustration of the experimental setup for solution plasma synthesis
Fig. 2 (a) Wide-field TEM images of BNNC-20 (b) High-resolution TEM image of BNNC-20 (c) STEM image of BNNC-20 and the distribution maps for B, C and N elements.
Fig. 5. CV curves of BNNC-20 in N2 (red dashed line) and O2-saturated (black solid line) 0.1 M KOH solution at a scan rate of 50 mVs-1.
Fig. 6. CV curves of NNNC and BNNC-20 in O2- saturated 0.1 M KOH solution at a scan rate of 50 mVs-1.
Fig. 7. LSV curves of NNC, BNNC-20 and 20% Pt/C in 0.1 M KOH solution at a rotation speed of 1600 rpm and a scan rate of 10 mVs-1.
Fig. 3 XPS spectra of BNNC-20 and NNC.
Fig. 4 FT-IR spectra of BNNC-20 and NNC.
Table 1. The mass concentration of different atomes in NNC and BNNC-20
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