Fig. 3: Spectroscopic characterization and theoretical simulation.
From: A lattice oxygen-free design for efficient and stable photothermal methane dry reforming
a Ni K-edge XANES spectra. Ni (b) and Co (c) K-edge EXAFS spectra, the highlighted parts represent the different metal coordination peaks. d Wavelet transform of Ni K-edge EXAFS. N 1 s (e) and Ni 2p (f) XPS spectra, the dotted line denotes the peak shift trend. g Schematic representation of the atomic structures of the NiCo alloy and N-Ni/NiCo surfaces and their corresponding charge density difference analysis, the circles focus on the active sites. h Adsorption energy diagram of CH4 and CO2 at different adsorption sites on the NiCo alloy and N-Ni/NiCo surfaces.
