Abstract:

A lamellar mesoporous zirconia with fairly high stability was successfully synthesized using an anionic surfactant as template via a hydrothermal process and characterized by means of TG, XRD, FT-IR and N₂ adsorption-desorption. The precursor of zirconia synthesized with the anionic surfactant as template and it as-product treated by NaOH solution and calcination at 500 ℃ both have a lamellar mesoporous structure, which implies their excellent thermal stabilities. The material owns bimodal mesoporous structure and has crystallized pore wall with a pure tetragonal phase after the decomposition of surfactant. It was also found that an alkaline treatment process plays a critical role in forming such material.

Key words: mesoporous zirconia, anionic surfactant, hydrothermal method