Spatial distributions of desorbing products in steady-state NO and N2O reductions on Pd(110).

Polar- and azimuth-angle-dependent rotational and vibrational excitation of desorbing product CO2 in CO oxidation on palladium surfaces.

Clear polar and azimuth angle dependencies were found in rotational and vibrational energies of product CO2 in CO oxidation on Pd surfaces. On Pd(110)-(1x1), with increases in polar angle, both energies decreased in the [001] direction but remained constant in [110]. On the Pd(110) with missing rows, both energies increased in [001] but decreased in [110], indicating that the transition state c...

Sustainable and Near Ambient DeNOx Under Lean Burn Conditions: A Revisit to NO Reduction on Virgin and Modified Pd(111) Surfaces

Catalytic conversion of NO in the presence of H2 and O2 has been studied on Pd(111) surfaces, by using molecular beam instrument with mass spectrometry detection, as a function of temperature and reactants composition. N2 and H2O are the major products observed along with NH3 and N2O minor products under all conditions studied. Particular attention has been paid to the influence of O2 addition ...

Two-directional N2 desorption in thermal dissociation of N2O on Rh„110..., Ir„110..., and Pd„110... at low temperatures

Low temperature decomposition of nitrous oxide over Fe/ZSM-5: Modelling of the dynamic behaviour

The kinetics of N2O decomposition to gaseous nitrogen and oxygen over HZSM-5 catalysts with low content of iron (<400 ppm) under transient and steady-state conditions was investigated in the temperature range of 250–380 8C. The catalysts were prepared from the HZSM-5 with Fe in the framework upon steaming at 550 8C followed by thermal activation in He at 1050 8C. The N2O decomposition began at ...

Comparison of Three-Dimensional Double-Echo Steady-State Sequence with Routine Two-Dimensional Sequence in the Depiction of Knee Cartilage

Introduction: There are some routine two-dimensional sequences, including short tau inversion recovery (STIR), T2-weighted fast-spin echo (T2W-FSE), and proton-density fast spin-echo for diagnosing osteoarthritis and lesions of the knee cartilage. However, these sequences have some disadvantages, such as long scan time, inadequate spatial resolution, and suboptimal tis...