The deconvoluted XPS Tb 4d spectra (Figure 3c) exhibit two peaks at 147.9 and 152.4 eV, which are related to the existence of the Tb 3+ and Tb 4+ oxidation states, respectively [32].

The SEM analysis revealed rod-like elongated structures on clustered particles. X-ray photoelectron spectroscopy was employed to ascertain the core levels of Tb 4d, Mn 2p, and S 2p.

2010年7月1日 · The UV/Visible absorption and XPS techniques have been used to probe the existence of Tb 3+ and Tb 4+ states. The host sensitive 4f–5d and the charge transfer transitions enabled the use of terbium ion as an indicator of the structure.

Overlay of Tb Native Oxide, & Tb2O3: Tb (4d) After shifting Tb2O3 spectrum by 1.4 eV to align with native oxide edge as test of charge correction, the spectra align very nicely. This need to shift means that charge referencing using C (1s) is not good. This is the one reason to include native oxides in data analyses & comparisons. Features ...

High-resolution XPS spectra of the Tb 4d, Sc 2p, and Fe 2p peaks shown in Fig. 2 indicate that the Sc peaks become progressively more prominent, while Fe peaks become weaker as we move from...

2024年1月1日 · Elemental composition and valence states were confirmed using X-ray photoelectron spectroscopy (XPS). Photocatalytic activities in the visible light region (band gaps of ~2 eV) were achieved. Photocatalytic yields (up to …

2010年11月13日 · XPS results indicated that Zr and Hf are present in 4+ oxidation state, and Ce, Tb and Pr are in both 3+ and 4+ oxidation states. XPS atomic ratios revealed that ceria–hafnia is more homogeneous among the investigated solid solutions.

摘要： 研究了BaTbO 3 、Tb 4 O 7 、TbFeO 3 的Tb 4d XPS谱,找到了表征Tb 3+ 、Tb 4+ 的特征峰,得出的高、低结合能峰强之比与Tb 4+ /Tb含量间的依赖关系,可用于确定Eu 1-x Tb x Ba 2 Cu 3 O 7-δ 中“123”相的Tb离子混合价态,用常压高温烧结法,未能获得纯“123”单相,也不易获得纯利 ...

2017年3月20日 · Polycrystalline Ca 3−x Tb x Co 4 O 9 (x = 0.0–0.7) samples were prepared by a solid-state reaction technique. Samples were thoroughly characterized using several state of the art techniques...

2021年9月29日 · XPS spectra were obtained on the air-sensitive molecular trivalent 4f n Cp′ 3 Ln III complexes (Ln = Sm, Eu, Gd, Tb; Cp′ = C 5 H 4 SiMe 3) and compared to those of the highly reactive divalent complexes, [K (crypt)] [Cp′ 3 Ln II] (crypt = 2.2.2-cryptand), which have either 4f n+1 (Sm, Eu) or 4f n 5d 1 electron configurations (Gd, Tb).