Structure of X-Ray Photoelectron Spectra of Magnetite

被引：0

作者：

Maslakov, K. I. ^{[1
,2
]}

Teterin, Yu. A. ^{[1
,2
]}

Safonov, A. V. ^{[3
]}

Yarzhemsky, V. G. ^{[2
,4
]}

Teterin, A. Yu. ^{[2
]}

Artem'ev, G. D. ^{[3
]}

Zin'kovskaya, I. I. ^{[5
]}

机构：

[1] Moscow State Univ, Fac Chem, Moscow 199991, Russia

[2] Kurchatov Inst, Natl Res Ctr, Moscow 123182, Russia

[3] Russian Acad Sci, Frumkin Inst Phys Chem & Electrochem, Moscow 119071, Russia

[4] Russian Acad Sci, Kurnakov Inst Gen & Inorgan Chem, Moscow 119991, Russia

[5] Joint Inst Nucl Res, Dubna 141980, Moscow Oblast, Russia

来源：

INORGANIC MATERIALS | 2024年 / 60卷 / 06期

关键词：

magnetite; X-ray photoelectron spectroscopy; elemental composition of the surface; XPS SPECTRA; IRON; OXIDES; PHOTOEMISSION; FE;

D O I：

10.1134/S0020168524701000

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have studied the complex structure of valence-band and core-level X-ray photoelectron spectroscopy (XPS) spectra of a geological magnetite sample (Fe3O4, Sverdlovsk oblast, Russia) containing Fe2+ and Fe3+ ions and impurities (Mg, Al, Si, Ti, and others). The results demonstrate that the XPS spectra of magnetite reflect a superposition of spectra of Fe2+ (3d(6)) and Fe3+ (3d(5)) ions in their high-spin states. We have evaluated the Fe 3p, Fe 3s, and Fe 2p binding energies in the different Fe ions. The measured Fe 3s spectrum of magnetite consists of two doublets with a splitting of 5.2 eV for Fe2+ and 6.5 eV for Fe3+. These values agree with results of theoretical calculations for Fe atoms by the final state configurational interaction method: 4.0 eV for Fe2+ (3d(6)) and 6.8 eV for Fe3+ (3d(5)).

引用

页码：745 / 754

页数：10

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