The Tb 4d XPS scan exhibits a peak at 152 eV, which was of the Tb 3þ state [56]. The Fe 2p XPS spectra (Fig. 4e) have two peaks at 711 eV and 724 eV attributed to Fe 3þ spin-orbital splitting...

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.

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.

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 …

Overlay of Tb Native Oxide, & Tb2O3: Tb (4d) 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 Observed. → Periodic Table. See (4d) spectrum overlay results shown above.

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...

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...

X-ray diffraction (XRD) and transmission electron microscopy (TEM) revealed that aTbMOF had been fully transformed to a Tb 4 O 7 phase with a cubic crystal structure at 450 °C. The amorphous aTbMOF-TF film was prepared by dropping a colloidal solution of amorphous precursor nanocrystals on the SiO 2 /Si substrates covered with Pt as an interlayer.