Herein, we report a facile, effiecient, yet unexplored approach for synthesis of mesoporous La-based Transition Metal Perovskites mixed oxides with ionic liquid as template. In this system, the ionic liquid is a soft template that firstly induce the precursors of La and TM (transition metal) to assemble a micro and mesopores framework structure with high surface area (300-500 m2/g), and then this porous structure could be stabilized by aging in the presence of ionic liquid. After removal of ionic liquid, the mesoporous structure could be well maintained even in process of crystallization at 700 oC and held high surface area (＞30 m2/g) . It is first reported that mesoporous structure of LTMP materials can maintain during crystalliation at high temperature without the assistant of mesoporous hard template. Moreover, the ionic liquid template will not be destryed in the procedure of synthesis, and can be recycled and for resusing.

Recyclable ionic liquid as soft template: Synthesis of mesoporous La-based transition metal perovskites

249th National Meeting (2015)

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