Aluminium-induced component engineering of mesoporous composite materials for low-temperature NH₃-SCR.

ABSTRACT: Supported Mn₂O₃ is useful in achieving high dinitrogen selectivity at low temperature during ammonia-selective catalytic reduction (SCR). However, its controlled synthesis is challenging when the supporting material is the conventional pure silicon SBA-15 mesoporous molecular sieve. Here we show that silicon and aluminium in fly ash, the solid waste produced by coal-fired power plants, can be used to synthesize an Al-SBA-15 mesoporous molecular sieve support, which can guide the growth of Mn₂O₃ in the as-synthesized Fe-Mn/Al-SBA-15 NH₃-SCR catalyst. Its superior catalytic performance is demonstrated by the high NO_x conversion (≥90%) and selectivity (≥86%) at low temperatures (150-300 °C). The combined theoretical and experim

SUBMITTER: Li G 

PROVIDER: S-EPMC9814655 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature