| 초록 |
The porous graphite nanofibers (PGNFs), produced by a chemical activation method from straight-type graphite nanofibers, were used as a catalyst support in order to deposit metallic copper particles for the NO removal. Metallic copper particles were loaded by the electroless copper plating with various loading time in the range of 2 to 30 min. Surface properties of the Cu/PGNFs were determined by XRD and SEM. N2 adsorption isotherms at 77K were investigated by BET and t-plot methods to characterize the specific surface areas and pore volumes, and NO removal efficiency was confirmed by a gas chromatographic technique. As experimental results, the content on metallic copper on the Cu/PGNFs were increased with increasing loading time, and then showed aggregation after 15 min of loading time. It is also found that NO removal efficiency was increased with metallic copper content by 20 min, and then decreased, resulting from the decrease of specific surface areas of loaded copper particles due to the aggregation. |
