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Related Concept Videos

Catalysis02:50

Catalysis

29.5K
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.
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Reduction of Alkynes to cis-Alkenes: Catalytic Hydrogenation02:24

Reduction of Alkynes to cis-Alkenes: Catalytic Hydrogenation

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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.
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Cycloaddition Reactions: Overview01:16

Cycloaddition Reactions: Overview

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Cycloadditions are one of the most valuable and effective synthesis routes to form cyclic compounds. These are concerted pericyclic reactions between two unsaturated compounds resulting in a cyclic product with two new σ bonds formed at the expense of π bonds. The [4 + 2] cycloaddition, known as the Diels–Alder reaction, is the most common. The other example is a [2 + 2] cycloaddition.
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Reduction of Alkenes: Asymmetric Catalytic Hydrogenation02:17

Reduction of Alkenes: Asymmetric Catalytic Hydrogenation

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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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Diels–Alder Reaction: Characteristics of Dienes01:29

Diels–Alder Reaction: Characteristics of Dienes

4.8K
The Diels–Alder reaction brings together a diene and a dienophile to form a six-membered ring. Both components have unique characteristics that influence the rate of the reaction.
Characteristics of the diene
Conformation
The simplest example of a diene is 1,3-butadiene, an acyclic conjugated π system. At room temperature, the molecule exists as a mixture of s-cis and s-trans conformers by virtue of rotation around the carbon–carbon single bond. Although the s-trans isomer is more stable,...
4.8K
[4+2] Cycloaddition of Conjugated Dienes: Diels–Alder Reaction01:16

[4+2] Cycloaddition of Conjugated Dienes: Diels–Alder Reaction

11.7K
The Diels–Alder reaction is an example of a thermal pericyclic reaction between a conjugated diene and an alkene or alkyne, commonly referred to as a dienophile. The reaction involves a concerted movement of six π electrons, four from the diene and two from the dienophile, forming an unsaturated six-membered ring. As a result, these reactions are classified as [4+2] cycloadditions.
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Related Experiment Video

Updated: Dec 3, 2025

Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction
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Graphdiyne-Supported Atomic Catalysts: Synthesis and Applications.

Xiaonan Kan1, Chunyan Fan1, Chenyu Wu2

  • 1College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China.

Chempluschem
|October 29, 2020
PubMed
Summary

Graphdiyne (GDY) supports atomic catalysts (ACs) with unique 2D structures, showing high catalytic ability and selectivity. Recent advances cover synthesis, theoretical analysis, and applications of these ACs/GDY systems.

Keywords:
atomic catalystscharacterizationgraphdiynetheoretical calculationsultrathin films

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Area of Science:

  • Materials Science
  • Catalysis
  • Nanotechnology

Background:

  • Graphdiyne (GDY) is a 2D material with unique sp- and sp2-hybridized carbon atoms.
  • Atomic Catalysts (ACs) supported on GDY exhibit promising catalytic performance.
  • The combination of ACs/GDY is a rapidly advancing research frontier.

Purpose of the Study:

  • To review recent progress in atomic catalysts supported on graphdiyne (ACs/GDY).
  • To cover synthesis, theoretical analysis, characterization, and applications of ACs/GDY.
  • To identify challenges and future opportunities in the ACs/GDY field.

Main Methods:

  • Theoretical screening of ACs/GDY combinations.
  • Development of synthetic methods for few-layered GDY films.
  • Facile fabrication techniques for ACs/GDY systems.

Main Results:

  • Demonstrated excellent catalytic ability and high selectivity of ACs/GDY.
  • Advanced synthesis of thin GDY films and ACs/GDY.
  • Theoretical insights into various ACs/GDY systems.

Conclusions:

  • ACs/GDY represent a cutting-edge area with significant potential.
  • Further research is needed to address current challenges and unlock new opportunities.
  • This review provides insights to promote the development of ACs/GDY.