IR Spectroscopic Investigation of Cation Distribution in Zn–Co Oxide Catalysts with Spinel Type Structure Full article
Conference |
Physical Methods for Catalytic Research at the Molecular Level: International memorial K.I. Zamaraev conference 28 Jun - 2 Jul 1999 , Novosibirsk |
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Journal |
Journal of Molecular Catalysis A: Chemical
ISSN: 1381-1169 |
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Output data | Year: 2000, Volume: 158, Number: 1, Pages: 293-296 Pages count : 4 DOI: 10.1016/S1381-1169(00)00093-5 | ||
Tags | Cation ordering, IR spectra, Spinel | ||
Authors |
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Affiliations |
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Abstract:
The structure of Zn–Co spinel prepared by coprecipitation was studied by IR spectroscopy. The characteristic bands of extra OH− and H3O+ groups were shown to exist in IR spectra up to 700°C. Comparing IR spectra of a poorly crystallized low temperature catalyst with that of a perfect Zn–Co spinel, we have associated the noticeable splittings and shifts of the F1u bands with definite structural distortions. The presence of extra anions in the catalyst with a spinel-like structure in the temperature region 100–700°C is the factor that stabilized the unusual cation distribution in this catalyst. The most plausible cation distribution in such a spinel is proposed as follows: Co3+ and Zn2+ are in octahedral positions, and Co2+ and Zn2+ are in tetrahedral ones.
Cite:
Kustova G.N.
, Burgina E.B.
, Volkova G.G.
, Yurieva T.M.
, Plyasova L.M.
IR Spectroscopic Investigation of Cation Distribution in Zn–Co Oxide Catalysts with Spinel Type Structure
Journal of Molecular Catalysis A: Chemical. 2000. V.158. N1. P.293-296. DOI: 10.1016/S1381-1169(00)00093-5 WOS Scopus РИНЦ
IR Spectroscopic Investigation of Cation Distribution in Zn–Co Oxide Catalysts with Spinel Type Structure
Journal of Molecular Catalysis A: Chemical. 2000. V.158. N1. P.293-296. DOI: 10.1016/S1381-1169(00)00093-5 WOS Scopus РИНЦ
Dates:
Published online: | Jul 18, 2000 |
Published print: | Sep 8, 2000 |
Identifiers:
Web of science | WOS:000089201200036 |
Scopus | 2-s2.0-0034623117 |
Elibrary | 13353133 |
Chemical Abstracts | 2000:498697 |
Chemical Abstracts (print) | 133:312955 |
OpenAlex | W2032485274 |