Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Comprehensive study combining surface science and real catalyst for NO direct decomposition.

Masaaki Haneda1, Yoshiaki Kintaichi, Isao Nakamura

  • 1Research Institute for Green Technology, National Institute of Advanced Industrial Science and Technology (AIST), AIST Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan. m.haneda@aist.go.jp

Chemical Communications (Cambridge, England)
|December 14, 2002
PubMed
Summary

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Post-ageing guided closed-loop discovery of multi-element alloy catalysts for automotive exhaust purification.

Nanoscale advances·2026
Same author

High-Throughput Optimization of a High-Pressure Catalytic Reaction.

Journal of chemical information and modeling·2025
Same author

Atomic-Scale Behavior of Perovskite-Supported Ir-Pd-Ru Nanoparticles under Redox Atmospheres.

Nano letters·2024
Same author

Experimental and Computational Insights into the Catalytic Mechanism of Y<sub>1-</sub>Ba<sub></sub>CoO<sub>3-δ</sub> Perovskite Oxides with a Controlled Crystal Structure.

Inorganic chemistry·2024
Same author

Room Temperature Reduction of Nitrogen Oxide on Iron Metal-Organic Frameworks.

Advanced materials (Deerfield Beach, Fla.)·2024
Same author

Denary High-Entropy Oxide Nanoparticles Synthesized by a Continuous Supercritical Hydrothermal Flow Process.

Journal of the American Chemical Society·2023

The catalytic activity of palladium on alumina (Pd/Al2O3) for direct nitric oxide decomposition is linked to surface step sites. These sites are crucial for dissociating nitric oxide (NO), enhancing catalyst performance.

Area of Science:

  • Materials Science
  • Catalysis
  • Surface Chemistry

Background:

  • Nitric oxide (NO) decomposition is a key reaction in environmental catalysis.
  • Palladium-based catalysts, particularly Pd/Al2O3, are investigated for NO reduction.
  • Understanding the active sites is crucial for designing efficient catalysts.

Purpose of the Study:

  • To investigate the relationship between palladium precursor type and the catalytic activity of Pd/Al2O3 for direct NO decomposition.
  • To identify the specific surface sites responsible for NO dissociation on Pd/Al2O3 catalysts.
  • To correlate catalyst structure with NO decomposition performance.

Main Methods:

  • Preparation of Pd/Al2O3 catalysts using various palladium precursors.
  • Characterization of catalyst surface properties, focusing on step sites.

Related Experiment Videos

  • Evaluation of catalytic activity for direct NO decomposition using surface science techniques.
  • Utilizing single-crystal model catalysts to probe reaction mechanisms.

    • Main Results:

    • The catalytic activity of Pd/Al2O3 for direct NO decomposition is strongly dependent on the fraction of surface step sites.
    • A higher proportion of surface step sites correlates with enhanced NO dissociation and catalytic activity.
    • The nature of the palladium precursor influences the formation of these active step sites.

    Conclusions:

    • Surface step sites are the primary active sites for direct NO decomposition on Pd/Al2O3 catalysts.
    • Optimizing the preparation method to increase the density of step sites can improve catalyst performance.
    • This study provides fundamental insights into the mechanism of NO decomposition over supported palladium catalysts.