fig1
Figure 1. A:The strategy of fabricating N-doped sp3@sp2 nanocarbon; B: Representative HR-TEM image; C: EDS elemental mapping of NND900; D: XPS spectrum in N1s and C1s regions of NDs and NND900, C1: sp2 C; C2: sp3 C; C3: C-O, C-N; C4: C = O; C5: O-C = O; N1: pyridinic N; N2: pyrrolic N; N3: graphitic N; N4: N oxide; E: Raman spectra (λ = 325 nm) of NDs and N-doped sp3@sp2 nanocarbon; F: EELS profiles of NDs and N-doped sp3@sp2 nanocarbon.
