Facile synthesis of super-microporous zirconia-based alumina/zirconia with high thermal stability

• Preparation of a series of super-microporous alumina-zirconia materials.
• The synthetic strategy is facile and benign without addition of acid or base.
• The materials with narrow pore size distribution of 1.5 nm.
• The materials with high thermal stability up to 800 °C.

A new family of super-microporous zirconia-based alumina-zirconia materials (pore size 1–2 nm) have been synthesized successfully using an eco-friendly template via an evaporation-induced self-assembly (EISA) pathway. Moreover, no extra acid or base is added in our synthesis process. When the atomic ratio of aluminum to zirconium is 1, the as-obtained sample exhibits a surface area of 400 m2/g when calcined at 400 °C and can maintain a microporous structure with a high surface area of 216 m2/g even when treated at 800 °C, demonstrating its high thermal stability. The material has functionally support effects in the methanation of syngas.

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