Extended Data Fig. 1: XAFS spectra of the (Pt0.15WTaFe0.15Ni)Cx/CNT film.
From: Nanoconfined impulse synthesis of high-entropy nanocarbides for active and stable electrocatalysis

XANES spectra of a, Pt L1-edge, d, W L1-edge, and g, Ta L1-edge. R-space EXAFS spectra of b, Pt L1-edge, e, W L1-edge, and h, Ta L1-edge, where the element ‘M’ represents a metal element (Pt, W, Ta, Fe, or Ni). Wavelet-transform images of c, Pt L1-edge, f, W L1-edge, and i, Ta L1-edge. Pt foil, PtO2, W foil, WO3, Ta foil, and Ta2O5 are used as references. PtO2 data are obtained from ref. 67, Pt-CA-CNT from ref. 68, WC from ref. 69, WO3 from ref. 70, and Ta foil, TaC, and Ta2O5 from ref. 28.