Progress in Hydrogen Production Coupled with Electrochemical Oxidation of Small Molecules

The electrochemical oxidation of small molecules to generate value‐added products has gained enormous interest in recent years because of the advantages of benign operation conditions, high conversion efficiency and selectivity, the absence of external oxidizing agents, and eco‐friendliness. Couplin...

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Bibliographic Details
Published in:Angewandte Chemie International Edition 2022-12, Vol.61 (51), p.e202213328-n/a
Main Authors: Wang, Tongzhou, Cao, Xuejie, Jiao, Lifang
Format: Article
Language:English
Subjects:
Coupling (molecular)
Design Strategies
Electrocatalysts
Electrochemical oxidation
Electrochemistry
Highly Efficient Hydrogen Production
Hydrogen
Hydrogen evolution reactions
Hydrogen production
Oxidation
Oxidizing agents
Oxygen evolution reactions
Pollutants
Selectivity
Small-Molecule Oxidation
Water Electrolysis
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Summary:The electrochemical oxidation of small molecules to generate value‐added products has gained enormous interest in recent years because of the advantages of benign operation conditions, high conversion efficiency and selectivity, the absence of external oxidizing agents, and eco‐friendliness. Coupling the electrochemical oxidation of small molecules to replace oxygen evolution reaction (OER) at the anode and the hydrogen evolution reaction (HER) at the cathode in an electrolyzer would simultaneously realize the generation of high‐value chemicals or pollutant degradation and the highly efficient production of hydrogen. This Minireview presents an introduction on small‐molecule choice and design strategies of electrocatalysts as well as recent breakthroughs achieved in the highly efficient production of hydrogen. Finally, challenges and future orientations are highlighted. Thermodynamically more favorable oxidation reactions of small molecules are widely implemented to replace the oxygen evolution reaction (OER) to achieve the highly efficient production of hydrogen. This Minireview systematically surveys the current progress in electro‐oxidation reactions involving diverse molecules, different electrolytes, and novel mechanisms. The challenges and research directions of this area are highlighted.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.202213328