Synthesis of ordered mesoporous alumina with high thermal stability using aluminum nitrate as precursor

• A highly ordered mesoporous alumina with high BET surface area and extremely high thermal stability.
• A new synthetic route for preparing ordered mesoporous alumina.
• The solvothermal pre-hydrolysis process to obtain more Al-OH species.
• The inexpensive and easily available inorganic aluminum nitrate as precursor.

By using the inexpensive aluminum nitrate as precursor, a highly ordered mesoporous alumina with high thermal stability has been synthesized successfully via an evaporation-induced self-assembly pathway associated with solvothermal pre-hydrolysis process. The resultant mesoporous alumina maintains the ordered hexagonal mesostructure, narrow pore-size distribution, high BET surface area and large pore volume even after thermal treatment at 900 °C.

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