RESEARCH / A0508
Unravelling the role of hydrogen peroxide in pH-dependent ORR performance of Mn-N-C catalysts
Read the original paper · 10.1016/j.apcatb.2023.123458 ↗
Source figures may contain other techniques and soft X-ray spectra. C, N and O measurements are outside our current hard-XAFS testing range.
Fig. 1. The morphology and structure of catalysts. (a) TEM image of MnPc/C-300; (b) AC-HAADF-STEM of Mn single atom of MnPc/C-300 catalyst and (c) EELS of the recorded areas shown in Figure b; (d) The experimental K-edge XANES spectra of MnPc/C-300 catalyst and reference sample (Mn foil, MnO, Mn2O3, MnO2, MnPc); (e) Fourier transform of Mn-K edge EXAFS data for MnPc/C-300, MnPc and Mn Foil catalysts; (f) High-resolution N 1s XPS spectra of MnPc/C and MnPc/C- 300 catalysts.