Low temperature denitration technology is a hotspot in recent years. Manganese-based catalysts are demonstrated to be most
promising catalysts at low temperature. Many researchers have improved manganese-based catalysts from different aspects to
meet the requirements of low-temperature catalysts. This paper attempts to review the progress of manganese-based catalysts
from catalyst morphology, catalyst carriers, composite manganese-based catalysts and catalyst preparation methods in recent
years, and the existing problems are also analyzed in the review.