RESEARCH / A0289
Entropy‐Driven Engineering Enables Electron‐Enriched Pt for Industrial Hydrogen Evolution
Read the original paper · 10.1002/adfm.202516559 ↗
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. Physical characterizations of the as-prepared samples. a) Atomic-resolution HAADF-STEM image of Pt/(FeCoNiMn)3O4 catalyst. b) elemental mappings of Pt/(FeCoNiMn)3O4 catalyst. c) XRD patterns of carbon paper, Pt/CP, (FeCoNiMn)3O4 and Pt/(FeCoNiMn)3O4. High-resolution XPS spectra of d) Pt 4f, f) Fe 2p and Co 2p, and g) Ni 2p and Mn 2p for as-prepared Pt/(FeCoNiMn)3O4. e) Pt0 binding energies of commercial Pt/C, Pt/Fe2O3, Pt/(FeCoNiMn)3O4, and Pt/(FeCoNiMnTi)3O4 collected from XPS. h) The Pt L3-edge XANES spectra and i) FT-EXAFS spectra and j) EXAFS wavelet transformation plots of Pt/(FeCoNiMn)3O4, Pt foil, and PtO2, respectively.