Mechanistic Features of Reduction of Copper Chromite and State of Absorbed Hydrogen in the Structure of Reduced Copper Chromite Review
Journal |
Russian Journal of General Chemistry
ISSN: 1070-3632 , E-ISSN: 1608-3350 |
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Output data | Year: 2008, Volume: 78, Number: 11, Pages: 2203-2213 Pages count : 11 DOI: 10.1134/S1070363208110418 | ||||||
Tags | General Chemistry; Chromite; Metallic Copper; Oxide Structure; Inelastic Neutron Scatter | ||||||
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Abstract:
The review discusses the experimental data on the unusual mechanism of the reduction of copper cations from the copper chromite, CuCr2O4, structure. Treatment of copper chromite in hydrogen at 180–370oC
is not accompanied by water formation but leads to absorption of hydrogen by the oxide structure with
simultaneous formation of metallic copper as small flat particles which are epitaxially bound to the oxide. This
process is due to the redox reaction Cu2+ + H2 → Cu0 + 2H+; the protons are stabilized in the oxide phase,
which is confirmed by neutron diffraction studies. The reduced copper chromite which contains absorbed
hydrogen in its oxidized state and the metallic copper particles epitaxially bound to the oxide phase structure
exhibit catalytic activity in hydrogenation reactions.
Cite:
Khasin A.A.
, Yur'eva T.M.
, Plyasova L.M.
, Kustova G.N.
, Jobic H.
, Ivanov A.
, Chesalov Y.A.
, Zaikovskii V.I.
, Khasin A.V.
, Davydova L.P.
, Parmon V.N.
Mechanistic Features of Reduction of Copper Chromite and State of Absorbed Hydrogen in the Structure of Reduced Copper Chromite
Russian Journal of General Chemistry. 2008. V.78. N11. P.2203-2213. DOI: 10.1134/S1070363208110418 WOS Scopus РИНЦ
Mechanistic Features of Reduction of Copper Chromite and State of Absorbed Hydrogen in the Structure of Reduced Copper Chromite
Russian Journal of General Chemistry. 2008. V.78. N11. P.2203-2213. DOI: 10.1134/S1070363208110418 WOS Scopus РИНЦ
Original:
Хасин А.А.
, Юрьева Т.М.
, Плясова Л.М.
, Кустова Г.Н.
, Жобик Э.
, Иванов А.
, Чесалов Ю.А.
, Зайковский В.И.
, Хасин А.В.
, Давыдова Л.П.
, Пармон В.Н.
Особенности механизма восстановления хромита меди и состояние абсорбированного водорода в структуре восстановленного хромита меди
Российский химический журнал. 2008. Т.52. №1. С.32-42. РИНЦ
Особенности механизма восстановления хромита меди и состояние абсорбированного водорода в структуре восстановленного хромита меди
Российский химический журнал. 2008. Т.52. №1. С.32-42. РИНЦ
Dates:
Submitted: | Sep 20, 2007 |
Published print: | Nov 1, 2008 |
Published online: | Dec 23, 2008 |
Identifiers:
Web of science | WOS:000261959400041 |
Scopus | 2-s2.0-59849084858 |
Elibrary | 13588342 |
Chemical Abstracts | 2008:1523867 |
Chemical Abstracts (print) | 150:200221 |
OpenAlex | W1987126705 |