XAFS技术在单原子电催化中的应用
汪思聪, 庞贝贝, 刘潇康, 丁韬, 姚涛

Application of XAFS Technique in Single-atom Electrocatalysis
WANG Sicong, PANG Beibei, LIU Xiaokang, DING Tao, YAO Tao
Fig.11 Illustration of (Fe,Co)/NC catalyst[49]
(A) Fe L-edge XANES spectra of (Fe,Co)/N-C and FePc; (B) experimental 57Fe Mössbauer transmission spectra measured at 298 K for (Fe,Co)/N-C, and fittings with spectral components; (C) N K-edge XAS spectra of Fe SAs/N-C, Co SAs/N-C, and (Fe,Co)/N-C; (D) comparison between K-edge XANES experimental spectrum of (Fe,Co)/N-C(black dashed line) and theoretical spectrum calculated with depicted structure(solid red line); (E) corresponding Fe K-edge EXAFS fittings of (Fe,Co)/N-C; (F) proposed architectures of Fe-Co dual sites; (G) preparation of (Fe,Co)/N-C.
Copyright 2017, American Chemical Society.