XPS analyses of lanthanides phosphates

Metal phosphate catalyzed dehydration of sorbitol under hydrothermal conditions

“…The theoretical position of the C 1s emission, at 284.9 ± 0.1 eV [38], was used as a reference for all charge shift corrections. The average binding energy values of the 3d lines (3d 3/2 at 851 eV and 3d 5/2 at 835 eV) of the LaP sample are in good agreement with those reported elsewhere for La(III) oxidation state [39,40]. The strong Ce 3d signals (3d 3/2 at 903.9 eV and 3d 5/2 at 885.2 eV) observed are characteristic for cerium atoms in the 3+ oxidation state [40,41].…”

Investigations on the charge compensation on Ca and U substitution in CePO4 by using XPS, XRD and Raman spectroscopy

“…The curve fitting yields 2p 3/2 and 2p 1/2 appearing at 132.6 eV and 133.7 eV respectively with a correlation coefficient of 0.99. The positions of 2p 3/2 and 2p 1/2 are characteristic of pentavalent phosphorous in PO 4 tetrahedra [25]. For, comparison, the P2p levels in Ce 0.8 Ca 0.2 PO 4 and CePO 4 are also shown in Fig.…”

Magnetic properties and X‐ray photoelectron spectroscopy of nanocrystalline Ho3Al5O12

“…5 -10 nm) to the surface; the obtained binding energies are related to the magnitude of the chemical bonding [22]. Electron binding energies (BEs) for Ho, Al and O atoms have been registered as peaks shown in the survey spectrum (Fig.…”