Zeolite Supported Palladium Nanoparticles Catalyzed Nitroarenes Reduction

The catalytic reduction of nitroaromatics to anilines is an important transformation in both laboratory and chemical industries [1-3]. Recyclable catalysts are very important for the reduction of nitroarene compounds and a number of transition metals (e.g., Pd, and Pt.) are reported to be efficient for this process [4-7]. Heterogeneous catalysts have attracted attention in catalytic reactions because of their high activities and the benefit of recycling [8-10]. In addition, the catalysts without any support generally aggregate after a single use in catalytic reactions which causes rapid activity decay [11-14]. The aggregation of catalysts reduces the active surface area resulting in less effective chemical reactions [15-17]. To resolve these drawbacks, catalysts are immobilized on inexpensive solid supports such as carbon, mesoporous silica, and zeolites. Among the various catalyst supports, zeolite materials have been extensively employed in heterogeneous catalysis due to their desirable properties including, chemical inertness and good mechanical stability [18-20].