Pathways towards Achieving High Current Density Water Electrolysis: from Material Perspective to System Configuration

Hydrogen is a clean, flexible, powerful energy vector that can be leveraged as a promising alternative to fossil fuels. Additionally, green hydrogen production has been recognized as one of the most prevalent solutions to decarbonize the energy system. Water electrolysis studies have increased throu...

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Bibliographic Details
Published in:ChemSusChem 2023-07, Vol.16 (13), p.e202300310-n/a
Main Authors: Domalanta, Marcel Roy, Bamba, Jaira Neibel, Matienzo, DJ Donn, Rosario‐Paraggua, Julie Anne, Ocon, Joey
Format: Article
Language:English
Subjects:
catalyst
Catalysts
Clean energy
Configuration management
Current density
electrochemistry
Electrolysis
Fossil Fuels
Green hydrogen
High current
Hydrogen
Hydrogen production
Industry
status
Systems design
Water
water splitting
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Summary:Hydrogen is a clean, flexible, powerful energy vector that can be leveraged as a promising alternative to fossil fuels. Additionally, green hydrogen production has been recognized as one of the most prevalent solutions to decarbonize the energy system. Water electrolysis studies have increased throughout the decade as higher industrial interest comes into play. The catalyst, system design, and configuration act in a congenial manner to deliver high‐performing water electrolysis. Despite performance targets peaking at high current densities, the current status of water electrolyzer technologies would require more research efforts to achieve such goals. This work presents a comprehensive review of how catalysts and electrolyzer designs can be enhanced to attain high current density water electrolysis. Modification strategies of catalysts, advances in characterization and modelling, and optimizing system designs are highlighted. Furthermore, this paper aims to elucidate the future research direction of water electrolysis to bridge the laboratory‐to‐industry gap. Hydrogen is a clean and flexible energy vector and producing hydrogen in a sustainable and high throughput process has attracted research and industrial sectors. This paper discusses recent strategies and advances in improving catalysts and electrolyzer system designs to achieve high current density water electrolysis, as well as providing insights on the outlook of the field to attain performance targets.
ISSN:1864-5631
1864-564X
DOI:10.1002/cssc.202300310