Modified activated carbon as catalyst for NO oxidation

The removal of NO by oxidation on nitrogen doped activated carbon is addressed in the present work. The activated carbons were subjected to appropriate treatments in order to modify their surface chemistry (introduction of nitrogen or oxygen containing groups). The use of carbon materials with nitrogen improves the rate of NO oxidation. Among all the prepared materials, activated carbons treated with nitric acid and melamine were the most efficient for NO oxidation, with a conversion of 88%.

Influence of nitrogen content of the activated carbons on the rate of NO oxidation.Figure optionsDownload as PowerPoint slideHighlights
► Activated carbons are efficient catalysts for NO oxidation at room temperature.
► Incorporation of nitrogen improves the catalytic activity of the activated carbons.
► Activated carbons treated with nitric acid and with melamine are the most active.