Abstract
Selective catalytic reduction of NO x by NH3 (NH3-SCR) is one of the most effective methods for the removal of NO x . Small-pore zeolite catalysts, such as Cu/SSZ-13 and Cu/SAPO-34, have attracted more and more attention for the NH3-SCR of NO x due to the high activity and hydrothermal stability. The recent advances of NH3-SCR of NO x over small-pore zeolite catalysts (especially Cu-based zeolite) are reviewed. Special attention is laid on the catalytic performance, influence factors and the NH3-SCR reaction mechanism. Finally, future research on the small-pore zeolite catalysts for NH3-SCR of NO x is proposed.
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