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Catalysis02:50

Catalysis

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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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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.
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Alkenes undergo reduction by the addition of molecular hydrogen to give alkanes. Because the process generally occurs in the presence of a transition-metal catalyst, the reaction is called catalytic hydrogenation.
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Introduction to Mechanisms of Enzyme Catalysis01:13

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

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Introduction
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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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Single-Atom Supported Catalysts and Beyond.

Yinji Wan1, Renyi Li2, Jianwen Su1

  • 1State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, No. 18 Fuxue Road, Changping District, Beijing, 102249, China.

Advanced Materials (Deerfield Beach, Fla.)
|June 5, 2025
PubMed
Summary
This summary is machine-generated.

Single-atom supported catalysts utilize single-atom catalysts as supports to tune metal-support interactions (SMSI), enhancing catalytic efficiency. This emerging field offers significant potential for advanced catalysis applications.

Keywords:
electronic effectsingle–atom supported catalystsstrong metal‐support interactionsynergistic catalysis

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Area of Science:

  • Catalysis
  • Materials Science
  • Surface Chemistry

Background:

  • Strong metal-support interaction (SMSI) is crucial for tuning electronic configurations and improving catalytic efficiency in supported metal catalysts.
  • Single-atom catalysts (SACs) offer unique unsaturated coordination sites and electronic states, enabling them to act as versatile supports for active metal species.

Purpose of the Study:

  • To define, classify, and review characterization techniques for single-atom supported catalysts (SASCs).
  • To highlight enhancement mechanisms, including electronic interactions and synergistic catalysis, driven by site-specific SMSI in SASCs.
  • To summarize advanced SASCs, discuss component-property relationships, and outline future challenges and perspectives.

Main Methods:

  • Review of existing literature on single-atom supported catalysts.
  • Analysis of characterization techniques for SASCs.
  • Discussion of enhancement mechanisms and component-property relationships.

Main Results:

  • SASCs demonstrate tunable SMSI through the unique properties of single-atom catalyst supports.
  • Electronic interactions and synergistic effects within SASCs significantly enhance catalytic performance.
  • Various advanced SASCs show promising relationships between composition and catalytic properties.

Conclusions:

  • Single-atom supported catalysts represent a promising frontier in catalysis, offering enhanced performance through controlled SMSI.
  • Further research into characterization, mechanism elucidation, and rational design of SASCs is essential for future development.
  • This field holds substantial potential for advancing catalytic science and applications.