2008年2月15日 · Samples of the iron oxides Fe 0.94 O, Fe 3 O 4, Fe 2 O 3, and Fe 2 SiO 4 were prepared by high temperature equilibration in controlled gas atmospheres. The samples were fractured in vacuum and high resolution XPS spectra of the fractured surfaces were measured.

2017年5月31日 · We report X-ray photoelectron spectroscopy (XPS) results on iron oxide magnetic nanoparticle (Fe 3 O 4) synthesized using solvothermal reduction in the presence of polyethylene glycol. The magnetite obtained was employed as precursor for the synthesis of γ-Fe 2 O 3 (by oxygen dissociation) which in turn was transformed into α-Fe 2 O 3 .

Iron is a necessary trace element used by all known living organisms. In mammals and other animals, hemoglobin is the iron-containing metalloprotein that carries oxygen in red blood cells. Good sources of dietary iron include meat, beans, and leafy vegetables; however, excessive amounts of iron in the body can lead to cell damage and eventually ...

These reference pages contain tips and techniques that are designed to help both the novice and advanced XPS user. For the analysis of photoelectron spectra of relatively pure iron oxides, one can use peak shape and peak binding energy comparisons to standard compounds to derive oxide composition.

XPS spectra of the iron oxide products. A facile approach for the synthetic fabrication of iron oxide (Fe3O4) particles is presented and their potential application towards energy storage...

2011年1月15日 · For the analysis of photoelectron spectra of relatively pure iron oxides, one can use peak shape and peak binding energy comparisons to standard compounds to derive oxide composition. McIntyre and Zetaruk's [15] paper is widely cited and is still an excellent starting point for qualitative iron oxide determination.

1999年1月15日 · We report on a systematic analysis of x-ray photoelectron spectroscopy (XPS) core- and valence-level spectra of clean and well-characterized iron oxide films, i.e., α − Fe 2 O 3, γ − Fe 2 O 3, Fe 3 − δ O 4, and Fe 3 O 4.

X-ray photoelectron spectroscopy (XPS ; also known as ESCA—electron spectroscopy for chemical analysis) is a surface analysis technique in which a solid surface in a vacuum is irradiated with x-rays to produce photoelectrons by direct transfer of energy from the x-ray photons to core-level electrons in the atoms of the sample. The ...

提出了一种定量方法来推导出混合物中 Fe2O3 表面的 Ar+ 诱导的改性。 这种方法允许根据混合物的 O 1s 带中两种氧化物组分之间的强度比测量 IO (Al)/IO (Fe) 推导出 no/nFe 变化。 在接收条件和蚀刻条件下分析的混合物的广泛组成范围内，导出的 nAl/nFe 原子比的相关性非常高。 给出了 Fe 2p32 跃迁的灵敏度因子：SFe2p32 = 2.50（相对于 SF1s 作为单位），这适用于本工作中使用的 VG Esca 3 MkII 装置。 与之前对 Fe2O3 和 Al2O3 的定量 XPS 分析进行了比较。 报道了 …

2008年2月15日 · Samples of the iron oxides Fe0.94O, Fe3O4, Fe2O3, and Fe2SiO4 were prepared by high temperature equilibration in controlled gas atmospheres. The samples were fractured in vacuum and high...