Microwave assisted hydrolysis of aluminium metal and preparation of high surface area �? Al2O3 powder

Bulletin of materials science

Sankara Narayanan Potty¹  A K Sivadasan¹  I Packia Selvam¹ 

[1] Centre for Materials for Electronics Technology (C-MET), Department of Information Technology, Government of India, Athani PO, Thrissur 680 581, India$$Centre for Materials for Electronics Technology (C-MET), Department of Information Technology, Government of India, Athani PO, Thrissur 680 581, IndiaCentre for Materials for Electronics Technology (C-MET), Department of Information Technology, Government of India, Athani PO, Thrissur 680 581, India$$

关键词: Aluminum metal;    ð›�? Al2O3 powder;    boehmite particles.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

Phase pure boehmite particles were prepared by microwave assisted hydrolysis of aluminium sheets. These particles were calcined in air to produce ð›�? Al₂O₃ particles with specific surface area of ∼210 m²/g. The alumina particles were characterized by studying X-ray diffraction, transmission electron microscopy and Fourier transform infrared spectroscopy. For comparison, the aluminium hydroxide particles were also prepared by normal hydrolysis of aluminium metal. Normal hydrolysis yielded a mixture of boehmite and bayerite particles whereas microwave assisted hydrolysis produced phase pure boehmite particles. The importance of using microwave radiation for the hydrolysis of aluminium metal is also manifested in a shorter reaction time.

【 授权许可】

Unknown