Chinese Academy of Sciences

Wanrong Chen

Yang Yang

Wenqing Xu

Tingyu Zhu

Yixi Wang

A molecular sieve confined noble metal catalyst for CO-SCR denitrification, a preparation method and an application thereof are provided. The catalyst includes a molecular sieve carrier and Ir metal nanoclusters loaded in the molecular sieve carrier through confined encapsulation. The preparation method includes the following steps: mixing a first metal precursor solution with a first ligand to obtain a first mixed solution; mixing a second metal precursor solution with a second ligand to obtain a second mixed solution; mixing a silicon source, an aluminum source, an alkali and a solvent to obtain a molecular sieve precursor solution; mixing the molecular sieve precursor solution with the first mixed solution, then adding the second mixed solution for hydrothermal crystallization reaction, and then centrifugally washing, drying and calcining to obtain the catalyst.

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Beijing, China

Wanrong Chen