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Effect of the modification of nanocrystalline MgO aerogels with vanadium and carbon on the destructive sorption of CFCl and CFCl

Kinetics and Catalysis, ISSN: 0023-1584, Vol: 55, Issue: 4, Page: 520-527
2014
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The effect of the promotion of nanocrystalline MgO aerogels with small amounts of vanadium and carbon on the destructive sorption of the Freons CF Cl and CFCl was studied. It was found that the introduction of the promoters considerably shortened the induction period of the reaction. The pretreatment of samples modified with vanadium in an oxidizing or reducing atmosphere did not significantly affect the duration of the induction period. It was established that the acceleration of the reaction by fine-particle carbon did not depend on the mutual arrangement of carbon and MgO: on the surface of MgO nanoparticles, in the form of their mechanical mixture, or at separate positions in a reactor. It was concluded that the modifiers catalytically affect the interaction of MgO aerogels with Freons to accelerate the formation of active centers on the surface of their nanoparticles. © 2014 Pleiades Publishing, Ltd.

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