Fig. 3: X-ray absorption spectroscopy fine structures.
From: Implanting Ni-O-VOx sites into Cu-doped Ni for low-overpotential alkaline hydrogen evolution
a Ni and b Cu K-edge XAS. c, d K-edge XANES on V and the enlarged area marked in c Zeff = Effective nuclear charge. e FT-EXAFS and f EXAFS of the samples on Ni K-edge.
