Topic: Advanced Catalysis for SCR of NOx

Nitrogen oxides (NO_x) are among the most harmful atmospheric pollutants, contributing significantly to photochemical smog, acid rain, and adverse human health effects. Major anthropogenic sources of NO_x include stationary power plants, industrial combustion systems, and mobile sources such as diesel engines. Selective catalytic reduction (SCR) has emerged as one of the most effective and widely implemented technologies for NO_x abatement due to its high efficiency, operational flexibility, and compatibility with existing emission-control infrastructures.

Despite decades of development, SCR technology continues to face critical challenges, including catalyst deactivation, narrow operating temperature windows, sulfur and alkali poisoning, ammonia slip, low-cost reducing agent, generation of N₂O resulting from the combustion of nitrogen-containing fuels，and the growing demand for low-temperature and ultra-low-emission performance. These challenges have driven intensive research into advanced catalytic materials, novel reaction mechanisms, and innovative reactor designs. Recent advances in nanostructured catalysts, single-atom catalysis, multiple redox systems, and artificial intelligence-driven catalyst optimization have opened new frontiers for improving SCR efficiency, durability, and sustainability.

This Special Issue aims to provide a comprehensive platform for cutting-edge research on advanced catalysis for SCR of NO_x, bridging fundamental insights with practical applications across energy, transportation, and industrial sectors.

Selective catalytic reduction (SCR); NO_x abatement; advanced catalysis; low-temperature SCR; NH₃-SCR; urea-SCR; CO-SCR; vanadium-free catalysts; zeolite catalysts; single-atom catalysis; nano-structured catalysts; catalyst deactivation; operando spectroscopy; reaction mechanisms; N₂O emission control; hybrid emission control; environmental catalysis.