Nanocomposite Catalyst for Effortless Oxidation and Reduction: Exploring the Applicability of Bimetallic Cupd Decorated on Co-Cr Ldh

摘要: The exciting possibilities of layered double hydroxides (LDH) in various industries: from catalytic applications to water remediation. enhancing characteristics and functionality with immobilized nanoparticles for synergetic interaction with LDH. A simple chemical method was developed to produce well-dispersed PdCu NPs on a Co-Cr LDH support through a combination of in situ co-precipitation/hydrothermal and sol-immobilization techniques. The resulting Pd-Cu@ Co-Cr LDH catalyst was exploited for the aerobic oxidation of alcohols and NaBH4-mediated nitrocompounds reduction. The physico-chemical characteristics of the catalysts were disclosed by FTIR, XRD, XPS, TGA, nitrogen adsorption isotherm, FESEM, HRTEM-EDX. The findings revealed that the PdCu bimetallic nanoparticle-immobilized Co-Cr LDH catalyst showed exceptional performance in the aerobic oxidation of benzyl alcohol (16% conversion, 99.9% selectivity to benzaldehyde) and the reduction of nitrobenzene (98.2% conversion, rate constant of 0.0921 min-1). The improved catalytic efficacy in benzyl alcohol oxidation and nitrobenzene reduction on the Pd-Cu@ Co-Cr LDH catalyst is attributed to the uniform distribution and small size of PdCu NPs as active sites on the Co-Cr LDH surface. The catalyst also displays remarkable stability during repeated runs. This study opens up novel opportunities for the tailor, production, and precise control of catalysts for organic transformation reactions.