Promotional effects of Nb5+ and Fe3+ co-doping on catalytic performance and SO2 resistance of MnOx-CeO2 low-temperature denitration catalyst

Lulu Long,Shihong Tian, Yongchang Zhao,Xiaoxiao Zhang, Wen Luo,Xiaojiang Yao

Journal of Colloid and Interface Science（2023）

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摘要

•NbFeMnCeOx catalyst has abundant surface acidity and surface adsorbed oxygen.•Nb5+ and Fe3+ co-doping strengthens the electron interaction of MnCeOx catalyst.•SO2 tolerance of MnCeOx catalyst is improved by Nb5+ and Fe3+ co-doping.•The anti-SO2 poisoning mechanism of NbFeMnCeOx catalyst is proposed.

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关键词

Nb5+ and Fe3+ co-doping,MnOx-CeO2 catalyst,NH3-SCR reaction,SO2 resistance,Low temperature

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