Synthesis of ultrafine Co/CoO nanoparticle-embedded N-doped carbon framework magnetic material and application for 4-nitrophenol catalytic reduction

A Co/CoO@NC hybrid material with high specific surface area and ultrafine particle size was prepared using a novel Co-MOF as a sacrificial template. The Co/CoO@NC shows excellent performance in the catalytic reduction of 4-nitrophenol (4-NP) and recyclability, the reaction rate constant k = 0.0139 s−1 (0.2 mg, 298 K) is better than some reported precious metal catalysts.