| Investigation of Nitrobenzene Reduction over Clay supported Ni and Pd Nanocatalysts |
| Paper ID : 1590-UFGNSM-FULL |
| Authors: |
|
Behzad Aghabarari *1, Esmat Ebadati Shadehsari2, M. Bagheridermani2, A. Khanlarkhani2, MARIA VICTORIA MARTINEZ HUERTA 3 1Imam Khomeini Blvd, Meshkin-Dasht, Karaj, IRAN, 2Department of Nanotechnology and Advanced Material, Materials and Energy Research Center (MERC), Tehran, PO box 14155-4777, Iran 328049 |
| Abstract: |
| Catalytic hydrogenation or reduction of nitro-aromatics is one of the most useful reactions in synthetic organic chemistry, as the anilines obtained are commercially important starting materials and intermediates for the manufacture of variety of chemical products such as dyestuffs, agricultural chemicals, pharmaceutical and surfactants. In this study, catalytic reduction of nitrobenzene was investigated over clay supported Pd nanocatalyst (2%Pd) and Ni nanocatalyst (2%Ni). The catalysts were prepared by using wet impregnation method and characterized by X-ray powder diffraction (XRD), field emission scanning electron microscope (FE-SEM) and the selected energy dispersive spectrum (EDS) studies. The performance of synthesized catalyst on nitrobenzene reduction was evaluated in a batch process at ambient condition and NaBH4 was used as reducer in this reaction. Their catalytic efficiency in the reduction of nitrobenzene to aniline was compared by UV spectroscopy measurement. The results showed that the Pd/clay catalyst is more efficient than Ni/clay catalyst that it can be related to the better distribution and appropriate size of Pd nanoparticles on the surface of support. Also, the effects of different reaction parameters including the amount of the selected catalyst, the mole ratio of NaBH4 to nitrobenzene and stream time on the aniline production were investigated. Finally, in the optimized reaction condition an excellent catalytic performance of Pd/Clay in the synthesis of aniline was achieved. |
| Keywords: |
| Nanocatalyst, Nitrobenzene reduction, Aniline |
| Status : Paper Accepted (Poster Presentation) |
