Seven Modern Trends in the DeNOx Catalyst Development

• Published in: Kinetics and catalysis 2021, Vol.62 (1), p.1-32
• Main Authors: Mytareva, A. I., Bokarev, D. A., Stakheev, A. Yu
• Format: Article
• Language: English
• Subjects: Catalysis; Catalysts; Chemical industry; Chemistry; Chemistry and Materials Science; Exhaust gases; Industrial wastes; Metal-organic frameworks; Mixed oxides; Nitrogen; Nitrogen dioxide; Nitrogen oxides; Perovskites; Physical Chemistry; Smog; Trends; Zeolites
• ISSN: 0023-1584; 1608-3210
• DOI: 10.1134/S0023158420060105

As a result of anthropogenic activities, millions of tons of nitrogen oxides (NO x = NO, NO 2 ) are emitted into the atmosphere every year, which poses a serious threat to human health. The catalytic neutralization of vehicle exhaust gases and industrial waste gases is the most effective solution to the problem of man-made NO x emissions. To date, there are a number of catalytic technologies for the removal of nitrogen oxides; however, their use is limited because of their low efficiency at temperatures of 100–300°C. This review is devoted to current trends in the development of highly active catalysts for the removal of nitrogen oxides from vehicle exhaust gases and waste gases of the chemical industry at temperatures below 300°C. The main attention is paid to new catalytic systems based on mixed oxides, hydrotalcites, perovskites, small-pore zeolites, metal–organic frameworks (MOF), and natural minerals and clays, as well as to hybrid catalysts.