2018年1月1日 · An in-depth XPS analysis in order to determine the presence of Pr 3+ surface fraction was carried out for CePr mixed oxides. By fitting of Pr 3d spectra in several samples, a much higher surface content of Pr 3+ relative to Ce 3+ ions was observed.

1991年9月15日 · Experimental data and theoretical calculations are shown for Pr 3d and 4d x-ray photoemission spectra (XPS) of Pr 2 O 3. The observed spectral structures are well explained by the theoretical results that are obtained with the impurity Anderson model by combining intra-atomic multiplet coupling with solid-state hybridization between the Pr 4 f ...

Primary Peak (XPS Signal) used to measure Chemical State Spectra: Pr (3d 5/2) at 931.8 eV Recommended Pass Energy for Measuring Chemical State Spectrum: 40-60 eV (Produces Ag (3d 5/2 ) FWHM ~0.7 eV)

Praseodymium X-ray photoelectron spectra, praseodymium electron configuration, and other elemental information. Collect entire Pr3d region (up to 990eV), making sure both Pr3d 5/2 and Pr3d 3/2 components are acquired. There is direct overlap between Pr3d and Cu2p peaks.

2016年12月1日 · Quantification of Pr-containing materials can be performed using AES and XPS. However, for both techniques, knowledge of the electron inelastic mean free path (IMFP) value for praseodymium is required.

XPS was used to investigate the coexistence of Co 3+ , Co 4+ , Pr 3+ and Pr 4+ cations at the surface of Pr 2/3 Ba 1/3 CoO 2.98 sample (Fig. 3). The Pr 3d spectrum in Fig. 3 (a) indicates that Pr...

The XPS spectra of Pr 3d are deconvoluted into three peaks as shown in Fig. 12a, b for samples with x = 0.2 and 0.8 as representatives for the series and the binding energies of the XPS...

The research investigates the Pr3+ surface fraction in CePr mixed oxides using X-ray photoelectron spectroscopy (XPS) analysis. It builds upon previous findings that indicated enhanced catalytic activity in CePr mixed oxides due to a combination of structural changes and improved redox properties arising from Pr doping.

因此，在目前的工作中进行了深入的 XPS 分析，以便通过拟合 XPS Pr 3d 区域来确定 Pr3+ 分数。 观察到还原 Pr 离子的值比 Ce 离子高得多，证实了前者的促进作用。

X-ray diffraction (XRD) results showed that all the samples fitted well with a single perovskite structure phase in a Pm-3m space group. The lattice parameters increased be... ... To determine the...