Covalency in oxygen chemisorption as probed by x-ray absorption

Soft X‐Ray Absorption and Emission Spectroscopy in the Studies of Nanomaterials

“…Covalency reduces the number of filled states with O 2p character, so that the strength of the O 1s signal at the threshold is related to the degree of covalency [122]. The decrease in intensity of the first-region bands, relative to the second-region bands is consistent with the observation in a O 1s XAS study going across the transition-metal series [119].…”

A study of molybdenum behaviour in UO2 by X-ray absorption spectroscopy

“…In the case of oxide edges, the absorption structures observed on the domain (E 0 , E 0 + 10 eV) mainly come from the excitation channel O 1s fi O 2p [15]. This zone thus gives a picture of the electronic structure of the empty states of the oxygen atoms.…”

X-ray spectroscopic study of the electronic structure of visible-light responsive N-, C- and S-doped TiO2

“…In contrast to the XAS and XES, which probes the partial density of the conduction/valence band, the valence band XPS (VB XPS), probes a total density of the states distribution in the valence band. 36,[58][59][60][61] In the VB XPS spectra shown in Fig. 6C, there were additional widely dispersed electronic states above the valence band edge in TiO 2-x N x, TiO 2-y C y and TiO 2-z S z compared to pure TiO 2 .…”