Test Usecase J 1 - annelore overwrite

Abstract

Nitrous oxide (N2O) is a potent greenhouse gas associated with increasing environmental risks, particularly due to its global warming potential. The removal of N2O remains challenging because catalytic decomposition typically requires high temperatures, especially in the presence of co-existing gases such as O2 and CO2. In this study, we explored various adsorbents that are efficient for N2O adsorption in the presence of O2 and CO2 and found that a CHA-type zeolite loaded with 10 wt% Cu (Cu(10)/CHA) was particularly effective. We developed a two-step N2O capture and reduction system using the Cu(10)/CHA adsorbent and Pd nanoparticles loaded on La-doped Al2O3 (Pd/La/Al2O3) as a catalyst. This system maintained its N2O adsorption and reduction capability for at least 12 h (9 cycles) while operating continuously over a temperature swing of 50–150 °C.