Unraveling the morphology and crystal plane dependence of bifunctional MnO2 catalyst for simultaneous removal of NO and CO at low temperature

Xiaodi Li,Shan Ren,Zhichao Chen,Yanhua Jiang,Mingming Wang,Liang Wang,Manyi Liu

Separation and Purification Technology（2023）

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摘要

•Different crystalline phases of MnO2 catalysts were prepared via a facile hydrothermal method.•γ-MnO2 catalyst exhibited the highest NO conversion and CO conversion.•γ-MnO2 catalyst possessed abundant surface adsorbed oxygen and Mn4+ species.•Reaction mechanism model of γ-MnO2 catalyst for NH3-SCR and CO oxidation was proposed.

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关键词

MnO 2 catalyst, Crystalline phase, Simultaneous removal, NO reduction, CO oxidation

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