Results 151 to 160 of about 17,202 (210)

The morphology of oxide reduction: Chromic oxide

Journal of Materials Science, 1967
The mechanism of the high shrinkage that occurs in chromic oxide in reducing conditions has been investigated by micrographic, analytical, electrical resistance, and other means. The effect of the reducing conditions is to modify the surface of the oxide particles, the core remaining normal oxide (i.e. oxygen excess).
H. E. N. Stone, N. A. Lockington
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Chromic oxide as refractory material

Refractories, 1977
The article deals with chromic oxide and other oxides of chromium and with the systems which chromic oxide forms with other oxides and which are of importance in the production and application of refractories. In most systems Cr2O3 coexists with the other oxides and their high-melting compounds.
I. S. Kainarskii, �. V. Degtyareva
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Chromic acid oxidation of polycyclic alcohols

Journal of the Chemical Society B: Physical Organic, 1971
The rates of oxidation by chromic acid in acetic acid of a series of bicyclo[2,2,1]heptan-2-ols with symmetrical exo-5,6-substituents (1,2-benzene and 1,8-naphthalene) have been measured. Rates of oxidation were found to be determined largely by the degree of nonbonded interactions in the ground state of the molecules except in the case of endo ...
R. Baker, T. J. Mason
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Chromic acid oxidation of aromatic alcohols

Canadian Journal of Chemistry, 1969
The mechanism of the chromic acid oxidation of di- and tri-aryl carbinols has been studied in 80 wt% acetic acid containing sulfuric acid. The reactions are cleanly second-order and give benzophenones in the case of the secondary alcohols and benzophenones plus phenols in the case of the tertiary alcohols.
Ross Stewart, Fariza Banoo
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Chromic oxide refractories from granular compositions

Refractories, 1977
An investigation was carried out of the chemical composition, grain-size distribution, and firing temperature of the chromic oxide briquets and the specimens as factors in the properties of the latter.
�. V. Degtyareva, I. I. Kabakova, Ya. Z. Shapiro, A. I. Portnova, N. M. Krasman   +4 more
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Sintering chromic oxide with an additive

Refractories, 1975
An investigation was carried out of the influence of certain additives on the sintering of chromic oxide. In an air medium, chromic oxide does not sinter at all without an additive. It achieves slight sintering with added TiO2 and a higher degree of sintering when aluminosilicates are added.
�. V. Degtyareva, I. S. Kainarskii, I. L. Boyarina, A. I. Portnova, B. G. Alapin, S. V. Lysak, P. P. Krivoruchko   +6 more
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Decomposition of nitrous oxide on chromic oxide

Journal of Catalysis, 1967
Abstract The catalytic decomposition of nitrous oxide was studied with two differently prepared chromic oxides, Catalyst A and Catalyst B. It was found that the reaction proceeded on a limited part of the catalyst surface and the reaction rate could be expressed by the following equation for the two catalysts, r = kP N 2 O (1 + KP
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Mechanism of Chromic Acid Oxidations

Zeitschrift für Physikalische Chemie, 1959
A. C. Chatterji, V. Antony
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The Heterogeneity of Catalyst Surfaces. II. Zinc Oxide-Chromic Oxide, Manganous Oxide-Chromic Oxide, Chromic Oxide Gel

Journal of the American Chemical Society, 1947
Hugh S. Taylor, Shou-Chu Liang
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Electronic defects in metal oxide photocatalysts

Nature Reviews Materials, 2022
Ernest Pastor, Michael Sachs, Shababa Selim   +2 more
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