Preparation and characterisation of γ-Al2O3 particles-supported Rh/Ce0.9Pr0.1O2 catalyst for N2O decomposition in the presence of O2, H2O and NOx

► A γ-Al2O3 particles-supported Rh/Ce0.9Pr0.1O2 catalyst has been prepared and characterised. ► N2O decomposition in simulated nitric acid plant conditions has been successfully performed. ► Ceria-alumina interaction slightly hinders rhodium-ceria interaction. ► Among inhibitors in nitric acid plant gasses (H2O, NOx and O2) NOx is the strongest and O2 the weakest.