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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.
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Updated: Jul 17, 2025

Hydrogen Production and Utilization in a Membrane Reactor

Hydrogen Production and Utilization in a Membrane Reactor

Published on: March 10, 2023

Highly Selective Electrocatalytic Olefin Hydrogenation in Aqueous Solution.

Chengyu Xing^1,2, Yurui Xue^2,3, Xuchen Zheng^2,4

¹Beijing Advanced Innovation Centre for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China.

Angewandte Chemie (International Ed. in English)

|August 29, 2023

Summary

Electrocatalytic hydrogenation of olefins using water as a hydrogen source was achieved with copper oxide quantum dots on graphdiyne (Cu_xO/GDY). This novel catalyst demonstrates high activity and selectivity under ambient conditions for efficient olefin hydrogenation.

Keywords:

Atomic Active Sites Electrocatalysis Graphdiyne Highly Selectivity Hydrogenation

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Heterogeneous Removal of Water-Soluble Ruthenium Olefin Metathesis Catalyst from Aqueous Media Via Host-Guest Interaction

Heterogeneous Removal of Water-Soluble Ruthenium Olefin Metathesis Catalyst from Aqueous Media Via Host-Guest Interaction

Published on: August 23, 2018

Area of Science:

Catalysis
Materials Science
Electrochemistry

Background:

Selective hydrogenation of olefins using water as a hydrogen source at ambient conditions presents a significant catalytic challenge.
Developing efficient and selective catalysts for such transformations is crucial for sustainable chemical synthesis.

Purpose of the Study:

To develop an electrocatalytic system for the selective hydrogenation of olefins using water as the hydrogen source.
To investigate the performance of graphdiyne-based copper oxide quantum dots (Cu_xO/GDY) as cathodic electrodes for this reaction.

Main Methods:

Electrocatalytic hydrogenation of aliphatic and functionalized olefins using Cu_xO/GDY as cathodic electrodes.
Utilizing water as the sole hydrogen source in an aqueous solution under ambient temperature and pressure.
Employing high current density for the hydrogenation reactions.

Main Results:

High activity and selectivity were achieved for the electrocatalytic hydrogenation of various olefins.
The sp-/sp²-hybridized graphdiyne framework facilitated selective hydrogenation of cis-trans isomeric olefins.
Optimized adsorption/desorption of reaction intermediates due to incomplete charge transfer between GDY and Cu atoms.

Conclusions:

Cu_xO/GDY serves as an effective electrocatalyst for selective olefin hydrogenation with water as the hydrogen source.
The unique electronic structure of the graphdiyne support enhances catalytic performance, offering a promising pathway for green chemistry.