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

Heterogeneous Catalysis01:22

Heterogeneous Catalysis

Heterogeneous catalysis involves a catalyst in a different phase from the reactants. It is a process where the catalyst and the reactants are in distinct phases, typically solid and gas or liquid.Most heterogeneous catalysts are metals, metal oxides, or acids. The list includes transition metals like iron (Fe), cobalt (Co), nickel (Ni), palladium (Pd), platinum (Pt), chromium (Cr), manganese (Mn), tungsten (W), silver (Ag), and copper (Cu). These metals possess partially vacant d orbitals that...
Temperature Dependence on Reaction Rate02:55

Temperature Dependence on Reaction Rate

The Collision Theory
Atoms, molecules, or ions must collide before they can react with each other. Atoms must be close together to form chemical bonds. This premise is the basis for a theory that explains many observations regarding chemical kinetics, including factors affecting reaction rates.
The collision theory is based on the postulates that (i) the reaction rate is proportional to the rate of reactant collisions, (ii) the reacting species collide in an orientation allowing contact between...

You might also read

Related Articles

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

Sort by
Same author

Designing and mapping cascade catalysis pathway for balanced polysulfide conversion in Li-S batteries.

Nature communications·2026
Same author

Modeling CO<sub>2</sub> Hydrogenation to Methanol on an Ensemble of Inverse ZrO<sub>2</sub> on Cu Catalytic Sites: Mechanism, Reactivity, and Deactivation.

Angewandte Chemie (International ed. in English)·2026
Same author

Quantifying Hydroxyl Adsorption on Copper with Electrochemical-Aware Random Phase Approximation.

Journal of chemical theory and computation·2026
Same author

Time-dependent surface polarization breaks static scaling relationship for selective acetylene hydrogenation.

Nature chemistry·2026
Same author

Shape and Scale in Quantifying Aortic Morphology Evolution and Chronicity.

Cardiovascular engineering and technology·2026
Same author

In Situ Formed Pt-Ga Hetero Duo-Atomic Catalyst for Efficient Hydrogen Storage in N-Heterocycles.

Journal of the American Chemical Society·2026

Related Experiment Video

Updated: Jun 13, 2026

Synthesis and Testing of Supported Pt-Cu Solid Solution Nanoparticle Catalysts for Propane Dehydrogenation
10:19

Synthesis and Testing of Supported Pt-Cu Solid Solution Nanoparticle Catalysts for Propane Dehydrogenation

Published on: July 18, 2017

Structural Evolution of Pt Nanoclusters Driven by CO Reactant Pressure and Catalyst Temperature.

Franklin Tao1,2,3, David Jiang4, Luan Nguyen2

  • 1Department of Materials Science and Engineering, University of California, Berkeley, California 94706, United States.

Journal of the American Chemical Society
|June 12, 2026
PubMed
Summary

Platinum nanoclusters restructure under carbon monoxide (CO) pressure, breaking down at low pressures and coalescing at high pressures. This study reveals pressure-dependent structural evolution impacting catalyst performance.

More Related Videos

Synthesis of Platinum-nickel Nanowires and Optimization for Oxygen Reduction Performance
09:02

Synthesis of Platinum-nickel Nanowires and Optimization for Oxygen Reduction Performance

Published on: April 27, 2018

Tuning the Acidity of Pt/ CNTs Catalysts for Hydrodeoxygenation of Diphenyl Ether
09:21

Tuning the Acidity of Pt/ CNTs Catalysts for Hydrodeoxygenation of Diphenyl Ether

Published on: August 17, 2019

Related Experiment Videos

Last Updated: Jun 13, 2026

Synthesis and Testing of Supported Pt-Cu Solid Solution Nanoparticle Catalysts for Propane Dehydrogenation
10:19

Synthesis and Testing of Supported Pt-Cu Solid Solution Nanoparticle Catalysts for Propane Dehydrogenation

Published on: July 18, 2017

Synthesis of Platinum-nickel Nanowires and Optimization for Oxygen Reduction Performance
09:02

Synthesis of Platinum-nickel Nanowires and Optimization for Oxygen Reduction Performance

Published on: April 27, 2018

Tuning the Acidity of Pt/ CNTs Catalysts for Hydrodeoxygenation of Diphenyl Ether
09:21

Tuning the Acidity of Pt/ CNTs Catalysts for Hydrodeoxygenation of Diphenyl Ether

Published on: August 17, 2019

Area of Science:

  • Surface Science
  • Catalysis
  • Materials Science

Background:

  • The atomic-scale structure of metal catalyst surfaces dictates their catalytic activity.
  • Understanding nanoparticle restructuring under reaction conditions is crucial for catalyst design.

Purpose of the Study:

  • To investigate the structural evolution of platinum (Pt) nanoclusters on a Pt(100) surface under varying carbon monoxide (CO) pressures.
  • To correlate nanocluster structural changes with catalytic performance under reaction conditions.

Main Methods:

  • High-pressure scanning tunneling microscopy (HP-STM) for atomic-scale imaging.
  • Ambient-pressure X-ray photoelectron spectroscopy (AP-XPS) for surface composition analysis.
  • Machine learning-accelerated computational studies, including neural network potentials (NNP) and basin-hopping (BH) simulations.

Main Results:

  • Pt nanoclusters undergo significant structural changes with increasing CO pressure (2 × 10-8–750 Torr).
  • Nanoclusters break down from 2 × 10-8 to 1 Torr CO, with average size decreasing from 3.2 to 2.3 nm.
  • Nanoclusters coalesce from 1 to 750 Torr CO at room temperature, with average size increasing to 4.6 nm.
  • CO coverage reaches one molecule per Pt atom, influencing nanocluster stability and morphology.
  • Kinetic control of nanocluster growth is observed at low temperatures (25 °C).

Conclusions:

  • Reactant pressure-driven nanocluster coalescence occurs even at room temperature.
  • An optimal nanocluster size exists, balancing formation energy costs and CO adsorption energy gains.
  • Direct correlation between catalyst nanoparticle structure and performance requires in-situ imaging at specific reactant pressures.