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

Nitrite reduction on morphologically controlled Pt nanoparticles.

Akane Miyazaki1, Toru Asakawa, Yoshio Nakano

  • 1Department of Environmental Chemistry and Engineering, Interdisciplinary Graduate School of Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, 226-8502, Japan. akanem@chemenv.titech.ac.jp

Chemical Communications (Cambridge, England)
|July 20, 2005
PubMed
Summary

Platinum nanoparticles with a high percentage of [100] facets efficiently converted nitrite ions to nitrogen gas using hydrogen. This study highlights facet-dependent catalysis for selective chemical transformations.

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

Transcriptomic profiling of myocardial biopsies reveals metabolic suppression and autophagy activation in systemic sclerosis-associated primary heart involvement.

Journal of scleroderma and related disorders·2026
Same author

Hafnium Oxide-Based Nanostructures as Powders and in Polyvinyl Alcohol Hydrogels for Light-Assisted Processes.

Gels (Basel, Switzerland)·2026
Same author

The Slipstream and Tip-Detection Technique: A Simplified AnteOwl-IVUS-Guided Re-Entry Strategy for Complex Lower-Extremity CTOs.

Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions·2026
Same author

'Balloon screen' technique: a case report of a novel bailout strategy for accurate stent deployment in severely calcified coronary lesions complicated by dissection.

European heart journal. Case reports·2026
Same author

Pedal Pull-Through Rail and Wingman-Assisted Coaxial Push for Entrapped Device Retrieval in Calcified Tibial Arteries.

JACC. Case reports·2026
Same author

Pilot clinical evaluation of artificial intelligence-driven guiding catheter simulation for optimizing percutaneous coronary intervention.

European heart journal. Digital health·2026

Area of Science:

  • Nanomaterials Science
  • Catalysis
  • Surface Chemistry

Background:

  • Controlling nanoparticle morphology is crucial for tuning catalytic activity.
  • The [100] crystalline facet of platinum (Pt) is known to exhibit unique catalytic properties.
  • Nitrite reduction is an important environmental and chemical process.

Purpose of the Study:

  • To investigate the selective reduction of nitrite ions to nitrogen gas.
  • To explore the role of platinum nanoparticle surface morphology, specifically the [100] facet, in this reaction.
  • To evaluate the efficiency and selectivity of hydrogen as a reducing agent.

Main Methods:

  • Synthesis of morphologically controlled platinum nanoparticles with a high abundance of [100] crystalline facets.
  • Catalytic reduction experiments using nitrite ions and hydrogen gas.

Related Experiment Videos

  • Analysis of reaction products to determine selectivity towards nitrogen gas (N2).

    • Main Results:

    • Platinum nanoparticles statistically rich in the [100] crystalline facet demonstrated high selectivity for reducing nitrite ions to N2.
    • The [100] facet played a critical role in achieving efficient and selective nitrite reduction.
    • Hydrogen gas effectively reduced nitrite ions under the tested conditions.

    Conclusions:

    • Morphologically controlled platinum nanoparticles, particularly those with a high [100] facet content, are effective catalysts for the selective reduction of nitrite to nitrogen.
    • Surface facet engineering of nanoparticles offers a promising strategy for optimizing catalytic processes.
    • This finding has implications for selective chemical synthesis and environmental remediation.