Topic
Mixed oxide
About: Mixed oxide is a research topic. Over the lifetime, 5224 publications have been published within this topic receiving 115567 citations.
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TL;DR: In this article, three electroanalytical techniques have been used to study the solid-state ionic diffusion of lithium into cerium-vanadium mixed oxide thin films, i.e., potentiostatic intermittent titration, galvanostatic and electrochemical impedance spectroscopy.
44 citations
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TL;DR: In the presence of O2, Fe-Z-pH2 exhibited better performance for N 2O removal than non-noble mixed oxide catalysts, which might broaden the application of low-temperature SCR of N2O by CO.
44 citations
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TL;DR: In this paper, a rapid solvent-free ball-milling method was developed to prepare a hydrophobic hydrotalcite supported Cu-Mn mixed oxide catalyst (CuMn/HT), which exhibited high catalytic activity and recyclability towards the aerobic synthesis of 2-acylbenzothiazoles and quinoxalines.
44 citations
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TL;DR: In this paper, a series of Co-ZnO catalysts with varying Co to Zn ratio were prepared by co-precipitation method and these were characterized by X-ray diffraction, temperature programmed reduction, H 2 chemisorption and transmission electron microscopy.
Abstract: A series of Co–ZnO catalysts with varying Co to Zn ratio were prepared by co-precipitation method and these were characterized by X-ray diffraction, temperature programmed reduction, H 2 chemisorption, X-ray photoelectron spectroscopy and transmission electron microscopy. The developed catalysts were evaluated for selective hydrogenolysis of glycerol to 1,2-propanediol. Glycerol conversion was found to be dependent on the ratio of Co to ZnO and a weight ratio Co/Zn of 50:50 was shown about 70% glycerol conversion with 80% selectivity to 1,2-propanediol. Glycerol hydrogenolysis activity was found to be related to Co metal area as well as amount of ZnO in the catalyst. The proposed catalysts were stable under the reaction conditions and reusable with consistent activity. Different reaction parameters were studied and optimum reaction conditions were established. A kinetic model for the hydrogenolysis reaction was also derived.
43 citations
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TL;DR: In this article, a well ordered 2D-hexagonal mesoporous niobium and tantalum (Nb ∶ Ta = 1 ∶ 1) mixed oxide was successfully prepared and the pore size, pore volume and wall thickness were found to be strongly affected by the amounts of water and metal sources in a starting ethanol solution involving non-ionic surfactant P123.
Abstract: A well ordered 2D-hexagonal mesoporous niobium and tantalum (Nb ∶ Ta = 1 ∶ 1) mixed oxide (denoted mesoporous NbTa oxide) was successfully prepared. Pore size, pore volume and wall thickness of the mesoporous NbTa oxide were found to be strongly affected by the amounts of water and metal sources in a starting ethanol solution involving non-ionic surfactant P123. X-Ray diffraction, N2 sorption, and transmission electron microscopy analyses revealed that a hexagonally ordered mesoporous NbTa oxide could be synthesized by appropriate control of the preparation conditions.
43 citations