Fig. 4: Catalytic performances in trans-stilbene epoxidation.

a The catalytic performance of M1/NOC samples in trans-stilbene epoxidation within 1 h. b The dynamics plots of trans-stilbene conversion against reaction time over various samples. Reaction condition: 1 mmol trans-stilbene epoxidation, containing 0.01 mmol Co in each catalyst (10 mg support), 10 mL solvent, 140 °C, O2 balloon. c TOF and mass-specific activity (MSA) of various Co1/NOC samples. d Optical photo of as-prepared gram-scale Co SAC sample. e The dynamics plots of SB conversion against reaction time over gram-scale Co SAC sample. f 1H NMR spectra of generated SBO. (400 MHz, D6-DMSO) δ 7.34–7.40 (m, 10H), 4.07 (s, 2H). Inset: molecular structure and optical photo of product SBO.