Randomized trial demonstrates enhanced oxygen activation and radicals selectivity in CoO x /Fe 2 O 3 catalysts, suggesting a new avenue for sustainable chemical processes.
Key Points
This study aims to improve the efficiency of cyclohexane oxidation by investigating spin polarization and lattice oxygen migration in CoO x /Fe 2 O 3 catalysts.
Utilized atomic layer deposition to create highly dispersed CoO x clusters on iron oxide nanorods.
Examined the interaction between high-spin Co atoms and Fe atoms to identify mechanisms of oxygen activation.
Conducted reactions under solvent-free conditions to assess catalyst performance.
Achieved 14.6% conversion and 82.7% selectivity for KA oil using the 5Co/FeNR catalyst.
Mass-specific reaction rate of 830.7 mmol·g cat −1 ·h −1, which is approximately 6 times higher than FeNR.
Confirmed spin polarization and lattice oxygen migration significantly enhance reaction selectivity while suppressing side reactions.