Study of sol-gel processing for fabrication of low density alumina microspheres

Date

2002-07-01

Author

Dilsiz, N
Akovali, G

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A sol-gel process for producing microspheres of low density alumina has been developed. A Dispal alumina sol and aluminum monohydrate were used as starting materials. Microspheres with spherical shape and controllable size have been produced by using a drop generation technique, The technique consists of producing a continuous stream Of uniform droplets of alumina sol and then converting the drops into a rigid form by exposing them to an ammonium hydroxide gelation medium. By using this technique. alumina spheres with surface area 351 m(2)g(-1) and pore size 10.7 Adegrees have been prepared.

Subject Keywords

Low density alumina, Sol-gel processing, Microspheres

URI

https://hdl.handle.net/11511/65618

Collections

Department of Chemistry, Article