Microkinetic modeling of the NOÂ +Â H2 system on Pt/Al2O3 catalyst using temporal analysis of products

► Comprehensive simulation of high vacuum transient catalysis in TAP reactor. ► TAP experiments provide sensitive test for NO + H2 microkinetic model. ► Model captures most of the features NO decomposition and NO+H2 pump-probe experiments. ► N2 vs. NH3 selectivity sensitivity function of temperature and pulse delay time.