Pd-Coordinated Salinidol-Modified Mixed MOF: An Excellent Active Center for Efficient Nitroarenes Reduction and Selective Oxidation of Alcohols

Abstract

Selective oxidation of active and inactive alcohol substratesandreduction of nitroarenes is a highly versatile conversion that remainsa challenge in controlling functionality and adjustments in metal-organicframeworks (MOFs). On the other hand, it offers an attractive opportunityto expand their applications in designing the next generation of catalystswith improved performance. Herein, a novel mixed MOF consisting ofsupported 2-hydroxybenzamide (mixed MOF-salinidol) has been fabricatedby post-synthetic modifications of mixed MOF. Subsequently, the preparednanocomposites were modified to impart catalytic sites using palladiumchloride ions mixed with MOF-salinidol/Pd (II). After successfullydesigning and structurally characterizing nanocomposites, we evaluatedtheir activity in oxidizing primary and secondary alcohols using aerobicconditions with molecular oxygen and an air atmosphere. In addition,the stability of (mixed MOF-salinidol/Pd (II)) catalysts under catalyticconditions was also demonstrated by comparing the Fourier-transforminfrared spectrum, scanning electron microscopy image, and ICP-OESmethod before and after catalysis. Based on the results, the activesurface area of the synthesized nanocatalyst is large, which highlightsits unique synergistic effect between post-synthetic modified MOFand Pd, and furthermore, the availability of catalytic sites fromPd, as demonstrated by outstanding catalytic activity.