Preparation of Cu@Cu2O Nanocatalysts by Reduction of HKUST-1 for Oxidation Reaction of Catechol

Abstract

HKUST-1, a copper-based metal organic framework (MOF), has been investigated as a catalyst in various reactions. However, the HKUST-1 shows low catalytic activity in the oxidation of catechol. Therefore, we synthesized Fe 3 O 4 @HKUST-1 by layer-by layer assembly strategy and Cu@Cu 2 O by reduction of HKUST-1 for enhancement of catalytic activity. Cu@Cu 2 O nanoparticles exhibited highly effective catalytic activity in oxidation of 3,5-di-tert-butylcatechol. Through this method, MOF can maintain the original core-shell structure and be used in various other reactions with enhanced catalytic activity.

MOF-Derived Cu@Cu2O Nanocatalyst for Oxygen Reduction Reaction and Cycloaddition Reaction

“…This ratio was found to be an important factor affecting the catalytic activity [ 19 , 20 ]. Such copper-copper oxide (Cu-CuO, Cu-Cu 2 O, Cu 2 O-CuO) core-shell nanoparticles are widely used as catalysts for several organic transformations, including cross-coupling reactions, cycloaddition reactions, catechol oxidation reactions, styrene oxidation reactions, CO oxidation, photocatalytic degradation and reductive degradation [ 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 ]. In addition, when combined with other metal species or supports, copper/copper oxide hybrid nanoparticles not only exhibit better catalytic activity, but also present superior stability and physicochemical properties.…”