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Related Concept Videos

Catalysis02:50

Catalysis

28.0K
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.
28.0K
Thermal and Photochemical Electrocyclic Reactions: Overview01:26

Thermal and Photochemical Electrocyclic Reactions: Overview

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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.
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Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction
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Catalyst overcoating engineering towards high-performance electrocatalysis.

Qiang Liu1,2, Marco Ranocchiari2, Jeroen A van Bokhoven1,2

  • 1Institute for Chemical and Bioengineering, ETH Zurich, Vladimir Prelog Weg 1, 8093 Zurich, Switzerland. jeroen.vanbokhoven@chem.ethz.ch.

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Summary

Advanced heterogeneous catalysts are crucial for clean energy. This review highlights surface overcoating engineering for designing efficient nanostructured electrocatalysts for fuel cells and water electrolyzers.

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Catalysis

Background:

  • Heterogeneous catalysts are essential for clean and sustainable energy technologies.
  • Nanotechnology enables the design of high-performance nanostructured electrocatalysts.
  • Electrochemical transformation reactions are key in renewable energy conversion and storage.

Purpose of the Study:

  • To review synthetic methodologies for surface overcoating engineering in electrocatalysts.
  • To discuss progress in surface overcoating-derived electrocatalysts for energy applications.
  • To correlate catalyst structure with electrocatalytic properties.

Main Methods:

  • Focus on synthetic strategies for surface overcoating.
  • Analysis of nanostructured electrocatalyst design.
  • Correlation of intrinsic catalyst structure with performance.

Main Results:

  • Surface overcoating engineering offers versatile strategies for optimizing electrocatalysts.
  • Progress in developing surface overcoating-derived electrocatalysts for polymer electrolyte fuel cells and water electrolyzers.
  • Established correlations between catalyst structure and electrocatalytic activity.

Conclusions:

  • Surface overcoating engineering is a promising approach for advanced (electro)catalyst design.
  • Further exploitation of these engineered catalysts can broaden applications in renewable energy.
  • Optimized electrocatalysts are vital for efficient energy conversion and storage.