fig7
Figure 7. XAS characterization of catalysts prepared from recycled LIBs. (A) and (B) XANES spectra of the CoFe/C catalyst and the respective metal foils; (C) and (D) k2-weighted R-space EXAFS spectra of the CoFe/C catalyst and the respective metal foils. Quoted with permission from Jiao et al.[60]. XAS: X-ray absorption spectroscopy; LIBs: lithium-ion batteries; XANES: X-ray absorption near edge structure; EXAFS: extended X-ray absorption fine structure.
