Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 61, Issue 42, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202209014
Keywords
Coupling; Electrocatalysis; Hybrid Water Electrolyzer; Hydrogen Evolution; Upgrading Organic Compounds
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Funding
- European Union's Horizon 2020 research and innovation program [GrapheneCore3: 881603]
- Deutsche Forschungsgemeinschaft within the Cluster of Excellence
- Deutsche Forschungsgemeinschaft [CRC 1415, 417590517]
- Projekt DEAL
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Electrocatalytic splitting of water for hydrogen production is a sustainable and clean technology, but its efficiency is limited by the sluggish oxygen evolution reaction. Coupling electrooxidation of organic compounds with hydrogen evolution reaction has emerged as an alternative route to greatly improve catalytic efficiency and generate valuable organic compounds.
The electrocatalytic splitting of water is recognized to be the most sustainable and clean technology for the production of hydrogen (H-2). Unfortunately, the efficiency is seriously restricted by the sluggish kinetics of the oxygen evolution reaction (OER) at the anode. In contrast to the OER, the electrooxidation of organic compounds (EOO) is more thermodynamically and kinetically favorable. Thus, the coupling of the EOO and hydrogen evolution reaction (HER) has emerged as an alternative route, as it can greatly improve the catalytic efficiency for the production of H-2. Simultaneously, value-added organic compounds can be generated on the anode through electrooxidation upgrading. In this Minireview, we highlight the latest progress and milestones in coupling the EOO with the HER. Emphasis is focused on the design of the anode catalyst, understanding the reaction mechanism, and the construction of the electrolyzer. Moreover, challenges and prospects are offered relating to the future development of this emerging technology.
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