Mitigating Nitrogen Oxides, N2O, and NH3 Emissions in the Chemical Industry and Ammonia Combustion

Anthropogenic air pollution is one of the major threats to planetary and human health. In this view, nitrogen oxides (NO_x) and nitrous oxide (N₂O) are among the key responsible by contributing to photochemical smog, acid rain, eutrophication, and a variety of health issues. Effective after-treatment abatement technologies like selective catalytic reduction and decomposition routes exist, but the simultaneous conversion of NO_x and N₂O remains under-explored. This perspective addresses the challenges and opportunities in optimizing catalytic technologies for individual and simultaneous NO_x, N₂O, and NH₃ conversion. The integration of advanced catalytic systems in both established industrial processes and emerging technologies relying on the use of NH₃ as a fuel is crucial for achieving sustainable and environmentally friendly solutions. Addressing these challenges can significantly reduce greenhouse gas emissions and ensure ammonia’s promise as a low-impact carbon-free fuel. This publication emphasizes the importance of continuous innovation in the field of catalytic conversion strategies to meet stringent environmental regulations and mitigate the impacts of NO_x and N₂O emissions. Developing cost-effective, high-performance catalysts under real industrial conditions is essential for the widespread adoption of these technologies and the transition to a more sustainable future.