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...
Catalysis02:50

Catalysis

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.
Catalysis01:27

Catalysis

Catalysis influences the rate of chemical reactions by providing an alternative reaction pathway with lower activation energy. A catalyst speeds up a reaction, but it is not consumed during the process. The fundamental principle of catalysis is the ability of a catalyst to alter the reaction mechanism, often introducing a more efficient pathway than the uncatalyzed process.In a catalyzed reaction, the catalyst participates directly in the reaction mechanism. It interacts with reactants to form...
Introduction to Mechanisms of Enzyme Catalysis01:13

Introduction to Mechanisms of Enzyme Catalysis

For many years, scientists thought that enzyme-substrate binding took place in a simple "lock-and-key" fashion. This model stated that the enzyme and substrate fit together perfectly in one instantaneous step. However, current research supports a more refined view scientists call induced fit. The induced-fit model expands upon the lock-and-key model by describing a more dynamic interaction between enzyme and substrate. As the enzyme and substrate come together, their interaction causes a mild...
Introduction to Mechanisms of Enzyme Catalysis01:13

Introduction to Mechanisms of Enzyme Catalysis

For many years, scientists thought that enzyme-substrate binding took place in a simple "lock-and-key" fashion. This model stated that the enzyme and substrate fit together perfectly in one instantaneous step. However, current research supports a more refined view scientists call induced fit. The induced-fit model expands upon the lock-and-key model by describing a more dynamic interaction between enzyme and substrate. As the enzyme and substrate come together, their interaction causes a mild...
Reduction of Alkenes: Asymmetric Catalytic Hydrogenation02:17

Reduction of Alkenes: Asymmetric Catalytic Hydrogenation

Catalytic hydrogenation of alkenes is a transition-metal catalyzed reduction of the double bond using molecular hydrogen to give alkanes. The mode of hydrogen addition follows syn stereochemistry.
The metal catalyst used can be either heterogeneous or homogeneous. When hydrogenation of an alkene generates a chiral center, a pair of enantiomeric products is expected to form. However, an enantiomeric excess of one of the products can be facilitated using an enantioselective reaction or an...

You might also read

Related Articles

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

Sort by
Same author

Erratum: Bending Rigidity of 2D Silica [Phys. Rev. Lett. 120, 226101 (2018)].

Physical review letters·2021
Same author

Surface Action Spectroscopy: A Review and a Perspective on a New Technique to Study Vibrations at Surfaces.

Chemical record (New York, N.Y.)·2020
Same author

Bending Rigidity of 2D Silica.

Physical review letters·2018
Same author

Model systems in heterogeneous catalysis: towards the design and understanding of structure and electronic properties.

Faraday discussions·2018
Same author

Surface Termination of Fe<sub>3</sub>O<sub>4</sub>(111) Films Studied by CO Adsorption Revisited.

The journal of physical chemistry. B·2017
Same author

Apparatus for low temperature thermal desorption spectroscopy of portable samples.

The Review of scientific instruments·2016
Same journal

Pressure-Related Challenges and Strategic Approaches in Lithium Metal Sulfide all-Solid-State Batteries.

Chemistry (Weinheim an der Bergstrasse, Germany)·2026
Same journal

Dual Regulatory Functions of Classical Zinc Finger Clusters from Myeloid Zinc Finger-1.

Chemistry (Weinheim an der Bergstrasse, Germany)·2026
Same journal

A Selectfluor-based Polonovski Rearrangement Leading to Novel Entities for Synthetic and Medicinal Applications.

Chemistry (Weinheim an der Bergstrasse, Germany)·2026
Same journal

Relay Approach: A Convergent Synthesis of Key Fragments en route to (+)-Neosorangicin A.

Chemistry (Weinheim an der Bergstrasse, Germany)·2026
Same journal

Working Under Pressure: Empirical Findings on the Challenges Facing PhD Students in Chemistry.

Chemistry (Weinheim an der Bergstrasse, Germany)·2026
Same journal

Charge Resonance Interaction in Aromatic Trimer Radical Cations Revealed by IR Spectroscopy: The Case of Pyrrole Homo- and Heterotrimers.

Chemistry (Weinheim an der Bergstrasse, Germany)·2026
See all related articles

Related Experiment Video

Updated: Jun 10, 2026

Multiscale Sampling of a Heterogeneous Water/Metal Catalyst Interface using Density Functional Theory and Force-Field Molecular Dynamics
10:52

Multiscale Sampling of a Heterogeneous Water/Metal Catalyst Interface using Density Functional Theory and Force-Field Molecular Dynamics

Published on: April 12, 2019

Model studies in heterogeneous catalysis.

H-J Freund1

  • 1Fritz Haber Institute of the Max Planck Society, Department of Chemical Physics, Faradayweg 4-6, 14195 Berlin, Germany. freund@fhi-berlin.mpg.de

Chemistry (Weinheim an Der Bergstrasse, Germany)
|July 30, 2010
PubMed
Summary
This summary is machine-generated.

Heterogeneous catalysis models incorporating finite active component size and atomic arrangement flexibility are crucial for system activity and selectivity. Examples include hydrogen incorporation in palladium nanoparticles and vanadia monolayer catalyst structure-reactivity correlations.

More Related Videos

Development of Heterogeneous Enantioselective Catalysts using Chiral Metal-Organic Frameworks (MOFs)
08:25

Development of Heterogeneous Enantioselective Catalysts using Chiral Metal-Organic Frameworks (MOFs)

Published on: January 17, 2020

Catalytic Reactions at Amine-Stabilized and Ligand-Free Platinum Nanoparticles Supported on Titania During Hydrogenation of Alkenes and Aldehydes
12:08

Catalytic Reactions at Amine-Stabilized and Ligand-Free Platinum Nanoparticles Supported on Titania During Hydrogenation of Alkenes and Aldehydes

Published on: June 24, 2022

Related Experiment Videos

Last Updated: Jun 10, 2026

Multiscale Sampling of a Heterogeneous Water/Metal Catalyst Interface using Density Functional Theory and Force-Field Molecular Dynamics
10:52

Multiscale Sampling of a Heterogeneous Water/Metal Catalyst Interface using Density Functional Theory and Force-Field Molecular Dynamics

Published on: April 12, 2019

Development of Heterogeneous Enantioselective Catalysts using Chiral Metal-Organic Frameworks (MOFs)
08:25

Development of Heterogeneous Enantioselective Catalysts using Chiral Metal-Organic Frameworks (MOFs)

Published on: January 17, 2020

Catalytic Reactions at Amine-Stabilized and Ligand-Free Platinum Nanoparticles Supported on Titania During Hydrogenation of Alkenes and Aldehydes
12:08

Catalytic Reactions at Amine-Stabilized and Ligand-Free Platinum Nanoparticles Supported on Titania During Hydrogenation of Alkenes and Aldehydes

Published on: June 24, 2022

Area of Science:

  • Surface science
  • Heterogeneous catalysis
  • Materials science

Background:

  • Understanding heterogeneous catalysis is vital for numerous chemical processes.
  • Existing models often simplify the complexity of active sites and their arrangements.
  • The role of finite active component size and atomic flexibility requires further investigation.

Purpose of the Study:

  • To review a surface-science-based concept for modeling heterogeneous catalysis.
  • To demonstrate the importance of accounting for active component size and atomic arrangement.
  • To provide examples illustrating the impact on catalytic activity and selectivity.

Main Methods:

  • Review of a surface-science approach to heterogeneous catalysis modeling.
  • Analysis of laboratory examples including palladium nanoparticles, vanadia monolayer catalysts, gold nanoparticles on oxide surfaces, and ultrathin oxide films.
  • Comparison of findings with existing literature.

Main Results:

  • Hydrogen incorporation in palladium nanoparticles is critical for hydrogenation.
  • Vanadia monolayer catalyst structure directly correlates with methanol oxidation reactivity.
  • The charge state of gold nanoparticles on oxide surfaces is influenced by the oxide-metal interface.
  • Ultrathin oxide films exhibit unique CO-oxidation activity due to reactive intermediate structures.

Conclusions:

  • Models that capture the complexity of finite active sites and atomic arrangements are essential for predicting catalytic performance.
  • Specific examples highlight the nuanced relationship between catalyst structure, composition, and reactivity.
  • Further research into surface-science-based modeling can advance catalyst design and application.