Published July 2003 | Version v1
Journal article Metadata-only

Oxidative addition of hydrogen in the reduced Mo/Al2O3 catalysts

Creators

  • 1. SO RAN, Inst. Kataliza im. G.K. Boreskova, Novosibirsk (Russian Federation)

Description

The molybdenum electron structure in the Mo/Al2O3 catalysts, obtained by application of the oxalate and acetylacetone molybdenum complexes on the substrate from the aluminium oxide and thermally treated in the hydrogen and carbon oxide atmosphere is studied through the method of the X-ray photoelectron spectroscopy. It is shown that formation of the surface structures, wherein the molybdenum formal oxidation degree corresponds to the +6 value, is observed at the temperature of 500 deg C. The assumed molybdenum surface hydrides are thermally sufficiently stable and decompose at the temperatures above 400 deg C

Abstract (Russian)

Методом рентгеновской фотоэлектронной спектроскопии изучено электронное строение молибдена в катализаторах Mo/Al2O3, полученных нанесением оксалатных и ацетилацетонатных комплексов молибдена на подложку из оксида алюминия и термически обработанных в атмосфере водорода и оксида углерода. Показано, что при температуре 500 град С наблюдается образование поверхностных структур, в которых формальная степень окисления молибдена соответствует значению +6. Предполагаемые поверхностные гидриды молибдена термически достаточно устойчивы и разлагаются при температурах выше 400 град С

Additional details

Additional titles

Original title (Russian)
Окислительное присоединение водорода в восстановленных катализаторах Мо/Ал

Publishing Information

Journal Title
Doklady Akademii Nauk - Rossijskaya Akademiya Nauk
Journal Volume
391
Journal Issue
1
Journal Page Range
p. 65-67
ISSN
0869-5652
CODEN
DAKNEQ

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
37027297
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
ACETYLACETONE; ALUMINIUM OXIDES; CATALYST SUPPORTS; ELECTRON SPECTRA; ELECTRONIC STRUCTURE; HYDRATES; HYDRIDATION; MOLYBDENUM COMPLEXES; MOLYBDENUM HYDRIDES; OXALATES; SENSITIVITY; TEMPERATURE RANGE 0400-1000 K; THERMAL DEGRADATION; VALENCE; X-RAY PHOTOELECTRON SPECTROSCOPY
Descriptors DEC
ALUMINIUM COMPOUNDS; CARBOXYLIC ACID SALTS; CHALCOGENIDES; CHELATING AGENTS; CHEMICAL REACTIONS; COMPLEXES; ELECTRON SPECTROSCOPY; HYDRIDES; HYDROGEN COMPOUNDS; KETONES; MOLYBDENUM COMPOUNDS; ORGANIC COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PHOTOELECTRON SPECTROSCOPY; REAGENTS; REFRACTORY METAL COMPOUNDS; SPECTRA; SPECTROSCOPY; TEMPERATURE RANGE; TRANSITION ELEMENT COMPLEXES; TRANSITION ELEMENT COMPOUNDS

Optional Information

Notes
14 refs., 2 figs.