Sol-Gel Preparation of Pd Nanoparticle over γ-Al2O3 and its Application in Hydrogenation of Nitrobenzene

Document Type : Research Paper

Author

Department of Chemistry, Kabul University, Afghanistan

Abstract

Aniline was synthesized by catalytic hydrogenation of nitrobenzene (NB) on nano-sized Pd on γ-Al2O3 catalyst prepared by sol-gel method. The catalyst was characterized by SEM and XRD. The average particle of Pd catalyst was 36 nm. In hydrogenation reaction of nitrobenzene, the hydrogenation rate was zero-order with respect to nitrobenzene and increased with increasing of hydrogen pressure. Compared with commercial Pd/γ-Al2O3, catalytic activity and selectivity of the as-prepared Pd/γ-Al2O3 is superior. The reason proposed for higher catalytic activity of nano-sized Pd is the small particle size and highdensity surface defects.

Keywords


Volume 04, Issue 01
March 2020
Pages 36-39
  • Receive Date: 09 January 2020
  • Revise Date: 01 February 2020
  • Accept Date: 23 February 2020
  • First Publish Date: 01 March 2020