Metal–organic framework-derived cobalt nanoparticles modified nitrogen-doped porous carbon hybrids for efficient hydrogenation and one-pot reductive acetylation of nitroarenes

• Published in: Reaction kinetics, mechanisms and catalysis Vol. 137; no. 1; pp. 195 - 208
• Main Authors: Luo, Peng, Chen, Junteng, Mu, Manman
• Format: Journal Article
• Language: English
• Published: Cham Springer International Publishing 01.02.2024
• Subjects: Catalysis; Chemistry; Chemistry and Materials Science; Industrial Chemistry/Chemical Engineering; Physical Chemistry; Metallic cobalt; Metal–organic framework; One-pot reductive acetylation; N-doped porous carbon; Catalytic hydrogenation
• ISSN: 1878-5190; 1878-5204
• DOI: 10.1007/s11144-023-02532-7

Herein, a series of cobalt nanoparticles embedded in nitrogen-doped porous carbon catalyst (Co@NPC) was prepared through the pyrolysis of tetragonal Co-based metal–organic framework which consisted of Co centers and benzimdazole linkers. Due to large BET specific surface area (389.41 m 2 /g), abundant metallic Co content (39.3%), small Co nanoparticle size and high pyridinic-N content, the as-obtained Co@NPC-700 catalyst exhibited superior catalytic performance for the hydrogenation and one-pot reductive acetylation of nitrobenzene. The high 99.80% conversion of nitrobenzene and 99.56% yield of aniline were acquired in the catalytic hydrogenation of nitrobenzene with hydrazine hydrate at 80 °C for 2 h. Simultaneously, the above catalyst showed high conversion (87.2%) and selectivity (95.3%) for the one-pot reductive acetylation of nitrobenzene in the presence of phenyl silane at room temperature. Additionally, Co@NPC-700 exhibited excellent activities for the catalytic hydrogenation and one-pot reductive acetylation of other nitroarenes as well as good recyclability. This work offered a facile approach to prepare metallic Co loaded on porous carbons, serving as efficient catalysts for catalytic reductive applications.