Surface reactivity of prereduced rare earth oxides with nitric oxide: New approach for NO decomposition
Literature Information
Masaaki Haneda, Yoshiaki Kintaichi, Hideaki Hamada
Direct decomposition of NO to N2 by rare earth oxides prereduced with H2 was studied. CeO2 and Pr6O11 prereduced at 773 K, in which many oxygen anion vacancies exist, decomposed NO to N2 at 673 K. The addition of Pt accelerated the dissociation of NO to N2. The amount of NO decomposed to N2 and N2O by Pt supported on rare earth oxides was strongly related to the oxygen mobility and to the amount of oxygen anion vacancies in the surface/subsurface. Particularly, for Pt/CeO2, oxygen diffusion on the surface but not in the bulk was the most important factor determining the NO decomposition activity.
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Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.










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