Journal article
A high-performance capillary-fed electrolysis cell promises more cost-competitive renewable hydrogen
Aaron Hodges, Anh Linh Hoang, George Tsekouras, Klaudia Wagner, Chong-Yong Lee, Gerhard F Swiegers, Gordon G Wallace
NATURE COMMUNICATIONS | NATURE PORTFOLIO | Published : 2022
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 e..
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Awarded by Australian Renewable Energy Agency (ARENA)
Awarded by Australian Research Council Centre of Excellence Scheme
Awarded by Australian Research Council
Funding Acknowledgements
The authors gratefully acknowledge support from the Australian Renewable Energy Agency (ARENA), Grant number DM015 (entitled: Ammonia production from renewables) (G.F.S. & G.G.W.). This activity received funding from ARENA as part of ARENAs Research and Development Program-Renewable Hydrogen for Export. Support from the Australian Research Council Centre of Excellence Scheme (grant number CE140100012) (G.G.W. and others) and the Australian National Fabrication Facility (ANFF) Materials Node is also acknowledged. The authors acknowledge the assistance of the University of Wollongong Electron Microscopy Centre. This research used equipment funded by the Australian Research Council - Linkage, Infrastructure, Equipment, and Facilities grant LE160100063.