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Copper Ion-modified Titanium Oxide Catalysts for CO Oxidation in Lean Mixtures Full article

Общее Language: Английский, Genre: Full article,
Status: Published, Source type: Translated
Journal Petroleum Chemistry
ISSN: 0965-5441 , E-ISSN: 1531-8532
Output data Year: 1998, Volume: 38, Number: 3, Pages: 170-177 Pages count : 8
Authors Trusova E.A. 1 , Tsodikov M.V. 1 , Slivinskii E.V. 1 , Bukhtenko O.V. 1 , Zhdanova T.N. 1 , Ernandes G.G. 1 , Kochubei D.I. 2 , Goryunova I.I. 3
Affiliations
1 Topchiev Inst. Petrochem. Synthesis, Russian Academy of Sciences, Leninskii pr. 29, Moscow, 117912, Russian Federation
2 Boreskov Institute of Catalysis, Siberian Division, Russian Academy of Sciences, pr. akademika Lavrent'eva 5, Novosibirsk, 630090, Russian Federation
3 Moscow Institute of Steel and Alloys, Leninskii pr. 4, Moscow, 117936, Russian Federation

Abstract: A set of TiO2-base Cu-Ti oxide catalysts, which showed high catalytic activity in low-temperature oxidation of CO in its lean mixtures with air, were prepared by the alkoxide technique using copper stearate and tetrahutoxytitanium as precursors. At an identical copper content in a composition, the anatase-base oxide is greatly superior to that of the rutile base in activity. The optimum copper content in catalysts providing increased activity in CO oxidation is 3-5 wt % and corresponds to the single-phase systems of the general formula CuxTi1-0.5xO2 with the anatase structure. Such systems provide virtually complete oxidation of CO in lean mixtures with air temperature 140°C and space velocity 50000 h-1. The structure of the oxides and charge states of copper were studied by X-ray diffraction, EXAFS, X-ray PES, and magnetic susceptibility techniques. The presence of two types of catalytic oxidation centers, the low-temperature (120-140°C) and the high-temperature (140-200°C) sites, involving Cu(1+) and Cu(2+) ions (bound to oxygen), respectively, is suggested
Cite: Trusova E.A. , Tsodikov M.V. , Slivinskii E.V. , Bukhtenko O.V. , Zhdanova T.N. , Ernandes G.G. , Kochubei D.I. , Goryunova I.I.
Copper Ion-modified Titanium Oxide Catalysts for CO Oxidation in Lean Mixtures
Petroleum Chemistry. 1998. V.38. N3. P.170-177. publication_identifier_short.scopus_identifier_type publication_identifier_short.rinz_identifier_type
ArticleLinkType.TRANSLATED_TO_ORIGINAL: Трусова Е.А. , Цодиков М.В. , Сливинский Е.В. , Бухтенко О.В. , Жданова Т.Н. , Эрнандес Г.Г. , Кочубей Д.И. , Горюнова И.И.
Модифицированные ионами меди Ti-оксидные катализаторы окисления CO в "бедных" смесях
Нефтехимия. 1998. Т.38. №3. С.185-193. publication_identifier_short.rinz_identifier_type
Identifiers:
publication_identifier.scopus_identifier_type 2-s2.0-0347656624
publication_identifier.rinz_identifier_type 13286520