Abstract

This paper concerns the physicochemical properties and activity in NO decomposition of a rutile-supported V-O-Mo catalyst, obtained by sol–gel method. Rutile, o-MoO 3 and β-MoO 3 are the main phases found by XRD and TEM. Monolayer vanadia-like species containing some Mo atoms substituted for V ones are present on molybdena crystallites. These species show some activity in NO decomposition to N 2 and O 2. An increase in this activity with the increase of O 2 content in the feed indicates surface reconstruction occurring due to interaction with oxygen.

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