Synthesis of a New Alumina/Zirconia Nano Composite for Selective Dehydration of 1,2-Diphenyl-2-propanol in Presence of 2-Octanol

The amorphous and crystalline mixed Al2O3-ZrO2 (50 wt%) nano composite were prepared by means of sol-gel method using aluminum iso-propoxide and zirconyl nitrate precursors. The characterization of physicochemical properties was carried out using XRD, BET, TGA, SEM, FT-IR and UV spectroscopy. Evaluation of catalytic activity and selectivity for the dehydration of 2-octanol and 1,2-diphenyl-2-propanol (DPP) was investigated. The crystalline catalyst selectively dehydrated tertiary alcohol (DPP) in presence of 2-octanol. The amorphous catalyst dehydrated DPP to predominately 1-alkene isomer, while the crystalline catalyst favoured the formation of E-2-alkene.

کلیدواژه ها:

Amorphous ، Crystalline ، Dehydration ، Al2O3-ZrO2 nano composite