Na noparticles assembly of y-Al۲ O۳ nanorods using y -AlOOH as precursor

One phase of alu mina, the ƴ-phase is widely used a s catalyst, c atalyst support and adso rbent as we ll as Al۲O۳ is a ceramic metal oxide of great im portance as building material, refra ctory material, electro technology, electronic s and biotechnology electrical and heat insu lator, attribu ted to its high stre ngth, corrosion resista nce, chemical stability, low thermal conductivity, and good electrical insulatio n [۱,۲]. It is conventionally prepared by heatin g the hydrated trihydro xides, gibbs ite and bayerite, to temp erature of > ۱۰۰۰ oC [۲ ,۳]. In this work, the conventional c hemical method for syn thesis of al umina is to dehydrate b oehmite nanorods which that prepared with hyd rothermal method, but the morphology of alumina remai ns the same.

کلیدواژه ها:

ƴ-Al۲O۳ ، nanorod ، ƴ-AlOOH.