RESEARCH / A0557
Engineering the Electronic Structure of Single Atom Iron Sites with Boosted Oxygen Bifunctional Activity for Zinc-Air Batteries
Read the original paper · 10.1002/adma.202209644 ↗
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. Atomic structural analysis of Fe SAs/NC. a) XRD patterns. b,c) High-resolution XPS Fe 2p (b) and N 1s (c) spectra. d) Fe K-edge XANES spectra. e) FT k2-weighted Fe K-edge EXAFS spectra. f) EXAFS fitting results in R space (inset, schematic model of Fe1N4O1). g) 3D contour WT-EXAFS plots. h,i) N (h) and C (i) K-edge XANES spectra. j) Secondary-electron tail threshold spectra.