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.7 Identification of single⁃atom Co active sites during HER process[36] （A） In situ XANES spectra of Co K-edge during HER process； （B） normalized difference spectra of Co K-edge XANES； （C） fitted average oxidation state of Co obtained from XANES； （D） the first-shell fitting of EXAFS spectra. Inserts are the corresponding geometric configurations. Grey， blue， red， purple， and cyan balls represent C， N， O， H and Co atoms， respectively. Copyright 2019， Springer-Nature.