Sinotech Company Limited

Jinfeng Wang

Yun Li

Qizhang Chen

Yongxiang Cheng

Tiantian Luo

Lan Yang

Yinhua Dong

Dacheng Li

Yun Wang

Hui Ye

Li Lan

Feng Zhang

Yi Yang

A cerium-zirconium-aluminum-based composite material, a cGPF catalyst and a preparation method thereof are provided. The cerium-zirconium-aluminum-based composite material adopts a stepwise precipitation method, firstly preparing an aluminum-based pre-treated material, then coprecipitating the aluminum-based pre-treated material with zirconium and cerium sol, and finally roasting at high temperature to obtain the cerium-zirconium-aluminum-based composite material. The cerium-zirconium-aluminum-based composite material has better compactness and higher density, and when it is used in cGPF catalyst, it occupies a smaller volume of pores on the catalyst carrier, such that cGPF catalyst has lower back pressure and better ash accumulation resistance, which is beneficial to large-scale application of cGPF catalyst.

Cerium-zirconium-aluminum-based composite material, cGPF catalyst and preparation method therefor

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Chengdu, China

Jinfeng Wang