fig3

Figure 3. (A) TEM, (B) EDX elemental mapping and (C) AC-HAADF-STEM images of Ni-N-C-l, (D) Ni k-edge XANES and (E) Fourier transformed EXAFS spectra of Ni foil, NiO, NiPc and Ni-N-C-l, (F) EXAFS R-space fitting curve of Ni-N-C-l.