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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...
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...

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Related Experiment Video

Updated: May 17, 2026

Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production
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Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production

Published on: December 6, 2021

Nanostructured materials for applications in heterogeneous catalysis.

Francisco Zaera1

  • 1Department of Chemistry, University of California, Riverside, CA 92521, USA. zaera@ucr.edu

Chemical Society Reviews
|October 18, 2012
PubMed
Summary

This review explores nanotechnology

Area of Science:

  • Materials Science
  • Chemistry
  • Nanotechnology

Background:

  • Heterogeneous catalysis is crucial for chemical transformations.
  • Controlling catalyst properties at the nanoscale is key to enhancing selectivity and activity.
  • Traditional methods often lack precise control over active sites.

Purpose of the Study:

  • To survey nanotechnology synthetic approaches for heterogeneous catalysis.
  • To illustrate the application of these methods in catalyst design.
  • To highlight the importance of integrating nanotechnology with surface science.

Main Methods:

  • Colloidal, reverse micelle, and dendrimer chemistry for nanoparticle synthesis.
  • Sol-gel and atomic layer deposition for support and active phase modification.

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

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Synthesis and Catalytic Performance of Gold Intercalated in the Walls of Mesoporous Silica
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Synthesis and Catalytic Performance of Gold Intercalated in the Walls of Mesoporous Silica

Published on: July 9, 2015

Related Experiment Videos

Last Updated: May 17, 2026

Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production
08:40

Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production

Published on: December 6, 2021

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

Synthesis and Catalytic Performance of Gold Intercalated in the Walls of Mesoporous Silica
11:02

Synthesis and Catalytic Performance of Gold Intercalated in the Walls of Mesoporous Silica

Published on: July 9, 2015

  • Design of complex nanostructures (e.g., core@shell) and hybrid molecular-nanostructure systems.

    • Main Results:

    • Nanotechnology enables precise control over nanoparticle size, shape, and composition.
    • Advanced methods allow for the creation of well-defined active sites and multifunctional catalysts.
    • Hybrid approaches facilitate the development of sophisticated catalytic sites.

    Conclusions:

    • Nanotechnology offers powerful tools for designing advanced heterogeneous catalysts.
    • Synergies between nanotechnology and surface science are vital for discovering new catalytic processes.
    • Tailored nanostructures and hybrid systems promise significant improvements in catalytic performance.