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

80
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...
80
Catalysis02:50

Catalysis

32.1K
The presence of a catalyst affects the rate of a chemical reaction. A catalyst is a substance that can increase the reaction rate without being consumed during the process. A basic comprehension of a catalysts’ role during chemical reactions can be understood from the concept of reaction mechanisms and energy diagrams.
32.1K

You might also read

Related Articles

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

Sort by
Same author

Long-term follow-up of patients with pulmonary hypertension after catheter ablation of atrial fibrillation and atrial tachycardia.

Frontiers in cardiovascular medicine·2026
Same author

Unlocking the Selectivity of Pt-Ru Catalysts for Electrochemical Reduction of Acetone to Isopropanol.

ACS applied materials & interfaces·2026
Same author

Surface Chemistry of Ru/CeO<sub>2</sub> Catalyst as Revealed by CO and <sup>15</sup>N<sub>2</sub> IR Probe Molecules.

Langmuir : the ACS journal of surfaces and colloids·2026
Same author

Enhanced Green Hydrogen Generation via Photocatalytic Water Splitting Using V-Doped Ti-Squarate MOFs.

Journal of the American Chemical Society·2026
Same author

Effects of 4% Lidocaine and EMLA in children undergoing venous procedures on vein caliber, pain, and child collaboration: Retrospective observational study.

Journal of pediatric nursing·2026
Same author

Direct Experimental Evidence of Transient Au<sup>δ+</sup> Oxide in Au Electrooxidation.

Journal of the American Chemical Society·2026

Related Experiment Video

Updated: Mar 25, 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

12.7K

Creating single-atom Pt-ceria catalysts by surface step decoration.

Filip Dvořák1, Matteo Farnesi Camellone2, Andrii Tovt1

  • 1Charles University in Prague, Faculty of Mathematics and Physics, V Holešovičkách 2, Prague 18000, Czech Republic.

Nature Communications
|February 25, 2016
PubMed
Summary

Single platinum atoms on ceria are stabilized at step edges, forming PtO4 moieties. This discovery enables the design of advanced single-atom catalysts by engineering step density on catalyst substrates.

More Related Videos

Imine Metathesis by Silica-Supported Catalysts Using the Methodology of Surface Organometallic Chemistry
09:37

Imine Metathesis by Silica-Supported Catalysts Using the Methodology of Surface Organometallic Chemistry

Published on: October 18, 2019

10.2K
On the Preparation and Testing of Fuel Cell Catalysts Using the Thin Film Rotating Disk Electrode Method
12:12

On the Preparation and Testing of Fuel Cell Catalysts Using the Thin Film Rotating Disk Electrode Method

Published on: March 16, 2018

23.1K

Related Experiment Videos

Last Updated: Mar 25, 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

12.7K
Imine Metathesis by Silica-Supported Catalysts Using the Methodology of Surface Organometallic Chemistry
09:37

Imine Metathesis by Silica-Supported Catalysts Using the Methodology of Surface Organometallic Chemistry

Published on: October 18, 2019

10.2K
On the Preparation and Testing of Fuel Cell Catalysts Using the Thin Film Rotating Disk Electrode Method
12:12

On the Preparation and Testing of Fuel Cell Catalysts Using the Thin Film Rotating Disk Electrode Method

Published on: March 16, 2018

23.1K

Area of Science:

  • Materials Science
  • Catalysis
  • Surface Science

Background:

  • Single-atom catalysts (SACs) offer maximum metal atom utilization.
  • Stabilization of single atoms is crucial to prevent sintering and deactivation under reaction conditions.

Purpose of the Study:

  • To identify the specific adsorption sites stabilizing single platinum atoms on ceria.
  • To demonstrate effective strategies for designing and understanding SACs.

Main Methods:

  • Combined experimental techniques: photoelectron spectroscopy and scanning tunnelling microscopy.
  • Theoretical calculations using density functional theory (DFT).
  • Experimental control over substrate defect density (step edges).

Main Results:

  • Platinum single atoms segregate at monoatomic step edges on ceria surfaces.
  • Stabilized Pt atoms form planar PtO4 moieties with excess oxygen, enhancing ceria's oxygen storage capacity.
  • Controlling step density maximizes the dispersion of single Pt(2+) ions.

Conclusions:

  • Monoatomic step edges are key stabilization sites for single Pt atoms on ceria.
  • Step engineering and decoration are effective strategies for designing robust single-atom catalysts.
  • The findings advance the understanding of SACs for catalytic applications.