Physicochemical properties of manganese-containing oxides with a spinel structure prepared with the use of ammonium nitrate and their catalytic activity in carbon monoxide oxidation

Autor:	T. N. Burdeinaya, Igor Morozov, V. F. Trets’yakov, R. A. Lyubushkin, A. A. Fedorova, M. N. Petrov
Rok vydání:	2006
Předmět:	Ammonium nitrate Spinel Inorganic chemistry Oxide chemistry.chemical_element General Chemistry Manganese engineering.material Catalysis Computer Science Applications chemistry.chemical_compound chemistry Modeling and Simulation Aluminium oxide engineering Hydrate Carbon monoxide
Zdroj:	Kinetics and Catalysis. 47:35-39
ISSN:	1608-3210 0023-1584
DOI:	10.1134/s002315840601006x
Popis:	Oxide catalysts with the spinel structure with the molar ratios between components Co/Mn = 1: 2, Cu/Mn = 1: 2, and Cu/Co/Mn = 2: 2: 3 (samples I–III, respectively) have been prepared by the decomposition of metal nitrate hydrate solutions in an ammonium nitrate melt. Sample IV with the ratio Cu/Co/Mn = 2: 2: 3 containing 80% γ-Al2O3 is obtained by the addition of γ-Al2O3 powder to the initial melt. The catalysts are characterized using X-ray diffraction analysis, electron microscopy, and local X-ray analysis. Catalytic activity in the reaction of CO oxidation increased in the order I < II < III < IV. The proposed method is simple, and the synthesis is rapid. Oxides with the spinel structure homogeneous in composition and morphology without any impurities can be prepared by this method. These oxides exhibited high catalytic activity in the reaction of carbon monoxide oxidation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::dab0fea7ff130ef49925e6c73f4b35bc https://doi.org/10.1134/s002315840601006x Zobrazit plný text záznamu Plný text ve formátu PDF