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 Concept Videos

You might also read

Related Articles

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

Sort by
Same author

High-resolution studies of photo(electro)catalysts by electrochemical scanning probe microscopy.

Chemical science·2026
Same author

Probing charge-transfer processes in Pt/TiO<sub>2</sub> photocatalysts by amperometric/potentiometric photo-SECM.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same author

In Situ Imaging Reveals Efficient Charge Separation in Monolayer MoS<sub>2</sub>-WS<sub>2</sub> Type-II Heterojunctions.

Journal of the American Chemical Society·2026
Same author

Electrochemical detection of dopamine using negatively charged ordered mesoporous carbon (CMK-3).

The Analyst·2025
Same author

Synthesis and characterization of individual high-entropy alloy particles for electrocatalytic water oxidation.

Nanoscale horizons·2025
Same author

Photoelectrochemical Imaging of Charge Separation between MoS<sub>2</sub> Triangles and Insulating SiO<sub>2</sub> Support.

Journal of the American Chemical Society·2025

Related Experiment Video

Updated: Dec 25, 2025

Measurement of Scattering Nonlinearities from a Single Plasmonic Nanoparticle
15:06

Measurement of Scattering Nonlinearities from a Single Plasmonic Nanoparticle

Published on: January 3, 2016

13.3K

Light-Controlled Nanoparticle Collision Experiments.

Qian Wang1,2, Je Hyun Bae1,3, Alexander B Nepomnyashchii1

  • 1Department of Chemistry and Biochemistry, Queens College-CUNY, Flushing, New York 11367, United States.

The Journal of Physical Chemistry Letters
|March 29, 2020
PubMed
Summary

This study introduces novel light-controlled nanoimpact experiments for studying nanoparticle catalysis. New methods enable monitoring of platinum on titanium dioxide nanoparticles and iridium oxide nanoparticles during water oxidation reactions.

More Related Videos

Utilization of Plasmonic and Photonic Crystal Nanostructures for Enhanced Micro- and Nanoparticle Manipulation
09:29

Utilization of Plasmonic and Photonic Crystal Nanostructures for Enhanced Micro- and Nanoparticle Manipulation

Published on: September 27, 2011

12.6K
Quantitative and Qualitative Examination of Particle-particle Interactions Using Colloidal Probe Nanoscopy
13:15

Quantitative and Qualitative Examination of Particle-particle Interactions Using Colloidal Probe Nanoscopy

Published on: July 18, 2014

11.4K

Related Experiment Videos

Last Updated: Dec 25, 2025

Measurement of Scattering Nonlinearities from a Single Plasmonic Nanoparticle
15:06

Measurement of Scattering Nonlinearities from a Single Plasmonic Nanoparticle

Published on: January 3, 2016

13.3K
Utilization of Plasmonic and Photonic Crystal Nanostructures for Enhanced Micro- and Nanoparticle Manipulation
09:29

Utilization of Plasmonic and Photonic Crystal Nanostructures for Enhanced Micro- and Nanoparticle Manipulation

Published on: September 27, 2011

12.6K
Quantitative and Qualitative Examination of Particle-particle Interactions Using Colloidal Probe Nanoscopy
13:15

Quantitative and Qualitative Examination of Particle-particle Interactions Using Colloidal Probe Nanoscopy

Published on: July 18, 2014

11.4K

Area of Science:

  • Electrochemistry
  • Nanotechnology
  • Materials Science

Background:

  • Single nanoparticle (NP) collisions with ultramicroelectrodes (UME) are vital for studying electrocatalysis.
  • Photoelectrochemical methods have recently been applied to semiconductive NPs.

Purpose of the Study:

  • Introduce two new light-controlled nanoimpact experiments.
  • Investigate catalytic activity of engineered nanoparticles at the single-particle level.

Main Methods:

  • Localized photodeposition of platinum (Pt) catalyst onto titanium dioxide (TiO2) NPs using a UME.
  • Monitoring photocurrent from collisions of iridium oxide (Ir oxide) NPs with a doped TiO2 single crystal electrode.

Main Results:

  • Pt@TiO2 NPs generated measurable water oxidation current upon collision.
  • Pristine TiO2 NPs showed negligible activity.
  • Photocurrent changes indicated water oxidation activity of catalytic NPs.

Conclusions:

  • Developed new light-controlled nanoimpact techniques for single nanoparticle electrocatalysis.
  • Demonstrated the ability to synthesize and probe catalytic NPs *in situ*.
  • Enabled sensitive detection of catalytic water oxidation at the single nanoparticle level.