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Open Access Article
1 - Adsorption Behavior of the Primary, Secondary and Tertiary Alkyl, Allyl and Aryl Alcohols Over Nanoscale (1 0 0) Surface of γ-Alumina
Mehdi Zamani Hossein A. Dabbagh -
Open Access Article
2 - Adsorption and Optimization Removal of Co(tsPc)-4 from aqueous solution using Nanoalumina
Amir Vahid Majid Abdous Aliakbar MiranBeigi Shahnaz Nayeri -
Open Access Article
3 - Surface modification of γ-alumina by NaNO2, NaNO3, HNO2, HNO3 and H2SO4: A DFT-D approach
Mehdi Zamani Hossein A. Dabbagh -
Open Access Article
4 - Sol-gel synthesis of nanoporous γ-alumina using TX-100 or gelatin/TX-100 mixture as effective catalysts for dehydration of alcohols
Soheyl Alidoust Mehdi Zamani Morteza Jabbari -
Open Access Article
5 - Study of the effect of digestion media on the properties of γ-alumina granules prepared via an oil-drop technique
محمد عبدالهی حسین آتشی فرشاد فرشچی تبریزیHCl is always used as precursor in synthesis of γ-alumina granules via oil-drop. A comparative study was conducted to evaluate the effect of precursor on the catalytic characteristics and performance of γ-alumina prepared via the oil-drop technique. The synt MoreHCl is always used as precursor in synthesis of γ-alumina granules via oil-drop. A comparative study was conducted to evaluate the effect of precursor on the catalytic characteristics and performance of γ-alumina prepared via the oil-drop technique. The synthesized materials were characterized by X-ray diffraction (XRD), BET (Brunauer-Emmett-Teller), BJH (Barret-Joyner-Halenda), energy dispersive X-ray (EDX), scanning electron microscopy (SEM), transmitting electron microscopy (TEM), and ammonia temperature programmed desorption (NH3-TPD( techniques. As a general trend, the γ-alumina catalyst prepared via oil-drop using HNO3 as the precursor has the higher surface area, pore volume, pore size, and distribution which are preferred in catalysis. Based on the results, the γ-alumina samples prepared using HNO3 are superior in activity about two times at 250 °C due to the differences in crystalline size, morphology, textural properties, and acid strength. Moreover, the incorporation of chlorine into γ-alumina structure is responsible for poisoning of catalysts which is evident by the less activity for the reaction Manuscript profile