Published November 2006 | Version v1
Journal article Metadata-only

X-ray photoelectron and X-ray absorption spectroscopic study of rare-earth molybdenum oxides

Creators

  • 1. SO RAN, Inst. Neorganicheskoj Khimii im. A.V. Nikolaeva, Novosibirsk (Russian Federation)
  • 2. ANK, Inst. Prikladnoj Khimii, Chanchun' (China)
  • 3. Novosibirskij Gosudarstvennyj Univ., Novosibirsk (Russian Federation)

Description

The chemical state of atoms in rare-earth molybdenum oxides within the Ce6Mo15-Y6MoO12 composition range, as well as Ce5ErMoO15-δ and Ce5YbMoO15-δ has been studied by X-ray photoelectron and X-ray absorption (XANES) spectroscopies. The photoelectron spectra has been analyzed in the Mo 3d, Mo 3p, O 1s, Ce 3d, Y 3d, Er 4d, and Yb 4d regions. The results indicate that the oxidation state of the molybdenum in the compounds studied is 6+. The measured Mo K-edge spectra and XANES calculations are used to develop a model of a molybdenum-oxygen cluster in the rare-earth molybdenum oxides

Abstract (Russian)

Методами рентгеноэлектронной и рентгеновской спектроскопии (ESCA и XANES) изучено химическое состояние атомов, входящих в состав сложных оксидов молибдена и редкоземельных элементов в области составов Ce6Mo15-Y6MoO12, а также соединений Ce5ErMoO15-δ и Ce5YbMoO15-δ. Рентгеноэлектронные спектры рассмотрены в области Mo3d-, Мо3р-, O1s-, Ce3d-, Y3d-, Er4d-, Yb4d-ypoвней. Показано, что молибден в изученных соединениях находится в степени окисления Мо6+. На основании K-спектров поглощения молибдена и теоретического расчета XANES-спектров предложена модель молибден-кислородного кластера в рассмотренных соединениях

Additional details

Additional titles

Original title (Russian)
Исследование двойных и тройных оксидов молибдена и RZM методами рентгеноэлектронной и рентгеновской абсорбционной спектроскопии

Publishing Information

Journal Title
Neorganicheskie Materialy
Journal Volume
42
Journal Issue
11
Journal Page Range
p. 1338-1376
ISSN
0002-337X
CODEN
NEOMB8

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
38038547
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
ABSORPTION SPECTRA; BINDING ENERGY; CERIUM OXIDES; CHEMICAL COMPOSITION; CHEMICAL STATE; COORDINATION NUMBER; ELECTRON SPECTRA; ERBIUM OXIDES; MOLECULAR CLUSTERS; MOLYBDENUM OXIDES; STRUCTURAL CHEMICAL ANALYSIS; VALENCE; X-RAY PHOTOELECTRON SPECTROSCOPY; X-RAY SPECTROSCOPY; YTTERBIUM OXIDES; YTTRIUM OXIDES
Descriptors DEC
CERIUM COMPOUNDS; CHALCOGENIDES; ELECTRON SPECTROSCOPY; ENERGY; ERBIUM COMPOUNDS; MOLYBDENUM COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PHOTOELECTRON SPECTROSCOPY; RARE EARTH COMPOUNDS; REFRACTORY METAL COMPOUNDS; SPECTRA; SPECTROSCOPY; TRANSITION ELEMENT COMPOUNDS; YTTERBIUM COMPOUNDS; YTTRIUM COMPOUNDS

Optional Information

Notes
13 refs., 11 figs., 4 tabs.