Journal of Thermodynamics & Catalysis
Open Access
ISSN: 2157-7544
ISSN: 2157-7544
Anwer A. Ebrahim
Egypt
Research Article
Effect of Ag-doping of Nanosized FeAlO System on its Structural, Surface and Catalytic Properties
Author(s): Laila I. Ali, Sahar A. El-Molla, Nabil H. Amin, Anwer A. Ebrahim and Hala R. MahmoudLaila I. Ali, Sahar A. El-Molla, Nabil H. Amin, Anwer A. Ebrahim and Hala R. Mahmoud
The effects of Ag2O-doping on the physicochemical, surface and catalytic properties FeAlO system with various extent of Fe2O3 loading have been investigated. The dopant concentration was changed between 1.5 and 4.0 mol % Ag2O. Pure and variously doped solids were subjected to heat treatment at 400-800?C. The techniques employed for characterization of catalysts were TG/DTG, XRD, N2-adsorption at ?196?C and the catalytic decomposition of H2O2 at 25-40?C. The obtained results revealed that, the investigated catalysts consisted of nanosized ?-Al2O3 phase. The textural properties including SBET, porosity and St were modified by Ag2O-doping. The doping process with Ag-species improved the catalytic activity of FeAlO system. Increasing the precalcination temperature from 400 to 800?C increased the catalytic activity (k30°C) of 3.5 % AgFeAlO with 1.9 fold to.. View More»
DOI:
10.4172/2157-7544.1000108