Iron Nanoclusters as Template/Activator for the Synthesis of Nitrogen Doped Porous Carbon and Its CO2 Adsorption Application

We propose a facile synthesis approach for nitrogen doped porous carbon and demonstrate a novel pore -forming method that iron nanoclusters act as a template Or activator at different carbonization temperatures based on Fe3+-poly(4-ifinyipyridine) (P4VP) coordination. P4VP will completely decompose even in an inert -atmosphere, but under the coordination and catalysis of Ee(3+), it can be converted to carbon at a very low temperature (400 degrees C). The aggregation of iron nanoclusters in the carbonization process showed different pore -forming methods at different temperatures. The as -prepared materials possess high specific surface area (up to 1211 m(2) g(-1),) large pore volume (up to 0.96 cm(3) g(-1)'); narrow microporosity, and high N content (up to 9.9 wt %). Due to these unique features, the materials show high CO2 uptake capacity and excellent selectivity for CO2/N-2 separation. The CO2 uptake capacity of NDPC-2600 is up to 6.8 and 4.3 mmol /g(-1) at 0 and 25 degrees C; the CO2\N-2 (0.15/0.85) selectivity at 0 and 25 degrees C also reaches 18.4 and 15.2, respectively.