Abstract
The pursuit of a greener adipic acid synthesis process, aiming to replace the highly polluting nitric acid oxidation method, has been a longstanding endeavor in both academic and industrial spheres. In this study, we present a reaction-controlled Pickering interfacial catalysis system, enabling the efficient oxidation of cyclohexene to adipic acid using 30 wt% hydrogen peroxide without the involvement of organic solvents. Following the reaction, the system spontaneously undergoes demulsification, facilitating easy recovery of catalyst particles via simple filtration, followed by product separation through cooling-induced crystallization. Employing high speed microscopic imaging for in-situ characterization of interfacial properties, we elucidate the influence of reaction conditions on interfacial properties and catalytic performance. The reaction-controlled Pickering interfacial catalysis system demonstrated herein offers a novel and industrially feasible strategy for developing green adipic acid synthesis route.
Published Version
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