Nitrogen-Doped Pitch-Based Activated Carbon Fibers with Multi-Dimensional Metal Nanoparticle Distribution for the Effective Removal of NO

The design of catalytic materials for NOX removal by the selective reduction with NH3 (NH3-SCR) has been a focus research in field waste gas treatment. In this work, pitch-based activated carbon fibers (ACFs) were impregnated copper nitrate and cerium nitrate, then ACFs that loaded bimetallic nanoparticles (ACF@Cu/Ce) obtained after pyrolyzation performed. Moreover, ACF@Cu/Ce furtherly treated through chemical vapor deposition activation, which N-doped nanofibers (N-CNFs) grown on surface ACFs. Thus, material multi-dimensional metal nanoparticle distribution nitrogen-rich network structure, namely N-CNF/ACF@Cu/Ce, was constructed. NH3-SCR reaction, NO conversion N-CNF/ACF@Cu/Ce could be maintained at about 72~81% wide temperature window 295~495 °C, enabled to meet requirements practical applications.