RESEARCH / A0554
Enhanced oxygen reduction activity of α-MnO2 by NH3 plasma treatment
Read the original paper · 10.1088/1361-6528/ad3b03 ↗
Source figures may contain other techniques and soft X-ray spectra. C, N and O measurements are outside our current hard-XAFS testing range.
Figure 2. (a) High-resolution XPS spectra of Mn 2p; (b) Mn K-edge XANES spectra; (c) EPR signal of N-MnO2 and pristine α-MnO2; (d) Mn2++Mn3+/Mn4+ ratio of N-MnO2 and pristine α-MnO2; (e) high-resolution XPS spectra of O 1s; (f) High-resolution XPS spectra of N 1s.