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Related Concept Videos

Heterogeneous Catalysis01:22

Heterogeneous Catalysis

48
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...
48
Reduction of Alkenes: Asymmetric Catalytic Hydrogenation02:17

Reduction of Alkenes: Asymmetric Catalytic Hydrogenation

4.0K
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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Reduction of Alkenes: Catalytic Hydrogenation02:13

Reduction of Alkenes: Catalytic Hydrogenation

14.6K
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.
Metals like palladium, platinum, and nickel are commonly used in their solid forms — fine powder on an inert surface. As these catalysts remain insoluble in the reaction mixture, they are referred to as heterogeneous catalysts.
The hydrogenation process takes place on the...
14.6K
Catalysis02:50

Catalysis

31.5K
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.
31.5K

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Recent advances in atomically precise metal nanocluster-based electrocatalysts for hydrogen evolution reaction.

Lipipuspa Sahoo1, Amitava Patra2

  • 1Department of Chemistry, Shailabala Women's Autonomous College, Cuttack, Odisha-753001, India. lipipuspa13@gmail.com.

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|March 9, 2026
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Summary

Atomically precise metal nanoclusters (NCs) show promise for efficient hydrogen evolution reaction (HER) catalysis in green hydrogen production. This review highlights strategies to enhance NC catalyst performance for renewable energy applications.

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Catalysis

Background:

  • Renewable energy technologies are rapidly advancing, with electrochemical water splitting for green hydrogen production offering a sustainable alternative to fossil fuels.
  • Atomically precise metal nanoclusters (NCs) are emerging as highly efficient catalysts for the hydrogen evolution reaction (HER) due to their well-defined structures.

Purpose of the Study:

  • To provide a comprehensive overview of recent advancements in atomically precise metal NC electrocatalysts for HER.
  • To discuss strategies for enhancing the performance of metal NCs in HER catalysis.

Main Methods:

  • Review of literature on metal NCs for HER.
  • Analysis of performance enhancement strategies including core size tailoring, ligand-metal interactions, heteroatom incorporation, electronic modulation, and interfacial engineering.

Main Results:

  • Metal NCs offer tunable properties for optimized HER catalysis.
  • Various strategies significantly improve the efficiency and stability of metal NC electrocatalysts.
  • Understanding structure-property relationships is key to catalyst design.

Conclusions:

  • Atomically precise metal NCs are a promising class of materials for efficient HER catalysis.
  • Continued research into rational design and interfacial engineering will drive the development of next-generation HER electrocatalysts.
  • Metal NCs hold significant potential for sustainable green hydrogen production.