Removal of NO over copper supported on activated carbon prepared by electroless plating

The effect of copper metal supported on activated carbon on the catalytic r eduction of NO has been studied as a short reaction process. It was observe d that the adsorption properties of the activated carbons plated with coppe r metal slightly decrease with an increasing in the, plating time or amount of copper metal, within the range of well-developed micropores. The result s of reduction show that the presence of copper metal on activated carbon r emarkably promotes the NO reduction conversion with the time on stream in t he presence of oxygen. Rut a marginal decrease in the function of plating t ime is observed. Meanwhile, the NO conversion is almost constant being abou t 100% after standing 20 h on stream at 500 degrees C in spite of the absen ce of oxygen. The effects of plating time, experimental temperature, and ox ygen amount in the activated carbons have been discussed concerning the NO- copper and/or NO-carbon catalytic reaction. (C) 1999 Academic Press.