Oxidation behavior of a Fe/MnO ultrathin film studied by XPS

被引：6

作者：

Di Castro, V ^{[1
]}

Ciampi, S ^{[1
]}

Sestili, L ^{[1
]}

机构：

[1] Univ La Sapienza, Dept Chem, I-00185 Rome, Italy

来源：

SURFACE REVIEW AND LETTERS | 1998年 / 5卷 / 01期

关键词：

D O I：

10.1142/S0218625X98000724

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The oxidation of a 9-Angstrom-thick iron layer on MnO at room temperature has been investigated by X-ray photoelectron spectroscopy. By exposure to O-2, iron is oxidized first to Fe(II) and then to Fe(III). During the oxide formation a fast oxygen adsorption and initial oxidation to Fe(II) is followed by a slower oxygen incorporation and Fe(III) formation. After exposure to 1500 L O-2 Fe3O4 seems to be formed at the surface, while the iron lager is not completely oxidized.

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页码：393 / 396

页数：4

相关论文

共 19 条

[1] THE KINETICS AND MECHANISM OF OXYGEN-UPTAKE ON A POLYCRYSTALLINE IRON SURFACE [J].

ARBAB, M ;

HUDSON, JB .

SURFACE SCIENCE, 1988, 206 (1-2) :317-337

[2] CORE AND VALENCE LEVEL PHOTOEMISSION STUDIES OF IRON-OXIDE SURFACES AND OXIDATION OF IRON [J].

BRUNDLE, CR ;

CHUANG, TJ ;

WANDELT, K .

SURFACE SCIENCE, 1977, 68 (01) :459-468

[3] PREPARATION AND CHARACTERIZATION OF ULTRA-THIN IRON-OXIDE FILMS ON A MO(100) SURFACE [J].

CORNEILLE, JS ;

HE, JW ;

GOODMAN, DW .

SURFACE SCIENCE, 1995, 338 (1-3) :211-224

[4] OXIDATION OF ULTRATHIN IRON LAYERS ON CU(100) - COMPOSITION OF THE OXIDE-FILMS [J].

DENDAAS, H ;

GIJZEMAN, OLJ ;

GEUS, JW .

SURFACE SCIENCE, 1993, 285 (1-2) :15-26

[5] A PHOTOEMISSION-STUDY OF THE CU/MNO INTERFACE [J].

DICASTRO, V ;

POLZONETTI, G .

CHEMICAL PHYSICS LETTERS, 1987, 139 (02) :215-218

[6]

DICASTRO V, 1993, SURF SCI, V293, P41, DOI 10.1016/0039-6028(93)90241-B

[7] XPS STUDY OF MNO OXIDATION [J].

DICASTRO, V ;

POLZONETTI, G .

JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA, 1989, 48 (1-2) :117-123

[8]

DICASTRO V, 1995, SURF SCI, V333, P294

[9]

KISHI K, 1990, SURF SCI, V227, P97, DOI 10.1016/0039-6028(90)90396-P

[10] CHARACTERIZATION OF SURFACE SPECIES ON IRON SYNTHESIS CATALYSTS BY X-RAY PHOTOELECTRON-SPECTROSCOPY [J].

KUIVILA, CS ;

BUTT, JB ;

STAIR, PC .

APPLIED SURFACE SCIENCE, 1988, 32 (1-2) :99-121