شماره ركورد كنفرانس :
3306
عنوان مقاله :
The Effect of Acid Concentration on Nano α-Alumina Particle Size in Sol-Gel Method
پديدآورندگان :
Mohamadalinezhad M B.Sc student of Metallurgical Eng. – Amirkabir University of Technology , Seyfi B M.Sc student of chemistry Eng. – Sharif University of Technology , Kazemian H R&D Lab. Of SPAG Co., Technology incubator, Sci & Technol. Park of Tehran University, Tehran, Iran , Marashi P Assistant Professor – Amirkabir University of Technology
كليدواژه :
Sol-Gel , Alumina Nanocrystalls , α-Al2O3 , Acetic Acid
عنوان كنفرانس :
كنفرانس بين المللي زئوليت ايران
چكيده لاتين :
Nanocrystalline alumina was synthesized by a simple sol–gel method using aluminum nitrate in acetic acid
mixed aqueous solutions. The alumina gel was then successfully transformed to α-Al2O3 through subsequent
low temperature heat treatment. The obtained gel and powders were characterized by X-ray diffractometry
(XRD), scanning electron microscopy and scanning probe microscopy. The XRD analysis showed that the
alumina was completely transformed to mono-phase, nanocrystalline α-Al2O3 (10.5nm) at 1150°C. The
concentration of acetic acid affects the amount of produced gel and the gelation time.
