Cu/SiO2 synthesized with HKUST-1 as precursor: high ratio of Cu+/(Cu+ + Cu0) and rich oxygen defects for efficient catalytic hydrogenation of furfural to 2-methyl furan

• DOI: 10.1039/d3cp02806b
• Publication Date: 2023-09-08T08:12:56Z
• Authors: Zhiyuan Zong; Hongzi Tan; Pengrui Zhang; Chao Yuan; Rongrong Zhao; Feng Song; Weiming Yi; Fengshan Zhang; Hongyou Cui
• Keywords: Hydrogenolysis; Furan; Cyclopentanone

Cu/SiO2 is one of the most promising catalysts for furfural (FF) hydrogenation reaction but suffers from difficulty tailoring microstructure and surface properties. Herein, we developed a MOF-derived catalyst (Cu/SiO2-MOF) FF to 2-methyl furan (2-MF). In comparison with prepared ammonia evaporation (Cu/SiO2-AE) traditional impregnation (Cu/SiO2-TI), copper species in Cu/SiO2-MOF could not only be anchored on silica via forming Cu-O-Si bonds also exposed many more active sites. this way, higher ratio Cu+/(Cu+ + Cu0) richer oxygen defects were constructed strong metal-support interactions, which responsible superior catalytic performance. addition, it was found that solvent effect product distribution played an important role adjusting selectivity 2-MF cyclopentanone (CPO). The present work provides deep insight into mechanism sheds light design synthesis highly efficient other heterogeneous catalysis fields.