articleNature CommunicationsMar 15, 2022GOLD OA

A high-performance capillary-fed electrolysis cell promises more cost-competitive renewable hydrogen

University of Wollongong · Australian Research Council · +1 more institution

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Abstract

Abstract Renewable, or green , hydrogen will play a critical role in the decarbonisation of hard-to-abate sectors and will therefore be important in limiting global warming. However, renewable hydrogen is not cost-competitive with fossil fuels, due to the moderate energy efficiency and high capital costs of traditional water electrolysers. Here a unique concept of water electrolysis is introduced, wherein water is supplied to hydrogen- and oxygen-evolving electrodes via capillary-induced transport along a porous inter-electrode separator, leading to inherently bubble-free operation at the electrodes. An alkaline capillary-fed electrolysis cell of this type demonstrates water electrolysis performance exceeding…

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Authors

7

Topics & keywords

Keywords
  • Renewable energy
  • Electrolysis
  • Chemistry
  • Computer science
  • Biochemical engineering
  • Engineering
  • Electrical engineering
  • Electrode
UN Sustainable Development Goals
  • Affordable and clean energy
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