Nitrogen-doped porous carbon materials supported bimetallic PdFe nanoparticles for the highly active reduction of 4-nitrophenol and olefin hydrogenation

In this study, nitrogen-doped porous carbon-loaded PdFe alloy catalysts are prepared by in situ pyrolytic reduction strategy using covalent triazine frameworks (CTFs) material as precursors. Due to the large specific surface area, multi-stage porous structure and the intermetallic synergistic interaction, the obtained Pd₁Fe₂@N-PCM-700-H₂O₂ exhibits remarkable catalysis activity for the reduction reaction of 4-nitrophenol (4-NP) with a turnover frequency (TOF) as high as 2102 min^-1, which represents the highest frequency reported to date. In addition, Pd₁Fe₂@N-PCM-700-H₂O₂ also displays a superior effect on the olefin hydrogenation reaction. Furthermore, the catalyst can retain 87.3% of its initial catalytic activity after six recycling cycles, which suggests its remarkable stability and potential for practical applications.