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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...
Thermal and Photochemical Electrocyclic Reactions: Overview01:26

Thermal and Photochemical Electrocyclic Reactions: Overview

Electrocyclic reactions are reversible reactions. They involve an intramolecular cyclization or ring-opening of a conjugated polyene. Shown below are two examples of electrocyclic reactions. In the first reaction, the formation of the cyclic product is favored. In contrast, in the second reaction, ring-opening is favored due to the high ring strain associated with cyclobutene formation.
Reduction of Alkynes to cis-Alkenes: Catalytic Hydrogenation02:24

Reduction of Alkynes to cis-Alkenes: Catalytic Hydrogenation

Introduction
Like alkenes, alkynes can be reduced to alkanes in the presence of transition metal catalysts such as Pt, Pd, or Ni. The reaction involves two sequential syn additions of hydrogen via a cis-alkene intermediate.
Cycloaddition Reactions: MO Requirements for Photochemical Activation01:12

Cycloaddition Reactions: MO Requirements for Photochemical Activation

Some cycloaddition reactions are activated by heat, while others are initiated by light. For example, a [2 + 2] cycloaddition between two ethylene molecules occurs only in the presence of light. It is photochemically allowed but thermally forbidden.

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Related Experiment Video

Updated: Jun 2, 2026

Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction
10:57

Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction

Published on: April 10, 2018

Catalyst-Support Synergy for CO2-Involved Electrochemical C-N Coupling Reactions.

Shukai Wen1,2, Jiaju Fu1, Jin-Song Hu1,2

  • 1Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China.

Chemsuschem
|June 1, 2026
PubMed
Summary
This summary is machine-generated.

This review explores how catalyst-support interactions enhance electrocatalytic carbon dioxide (CO2) conversion with nitrogen molecules. Optimized supports are key to improving selectivity and efficiency in synthesizing valuable chemicals.

Keywords:
C–N couplingcatalyst–support synergyelectrocatalytic CO2 valorizationfunctional support designsupported catalysts

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Last Updated: Jun 2, 2026

Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction
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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
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Area of Science:

  • Electrochemistry
  • Catalysis
  • Materials Science

Background:

  • Electrocatalytic coupling of CO2 with nitrogen-containing molecules offers a route for carbon valorization.
  • Challenges include low C-N coupling selectivity and side reactions due to complex pathways.

Purpose of the Study:

  • To review synergistic mechanisms between catalysts and supports in electrocatalytic C-N coupling.
  • To summarize C-N coupling pathways and highlight support-enabled enhancements.

Main Methods:

  • Literature review of synergistic effects in electrocatalytic C-N coupling.
  • Analysis of C-N coupling pathways and intermediate transport.
  • Assessment of support design strategies for enhanced catalysts.

Main Results:

  • Synergistic effects between catalysts and supports can improve C-N coupling efficiency.
  • Key mechanisms include modulating catalyst activity, optimizing microenvironments, and facilitating intermediate transport.
  • Functionalized supports offer promising strategies for boosting performance.

Conclusions:

  • Rational design of support materials is crucial for developing efficient supported catalysts.
  • Further research is needed to address challenges and advance electrocatalytic C-N coupling technology.