Riaz, Muhammad Adil;
Trogadas, Panagiotis;
Aymé-Perrot, David;
Sachs, Christoph;
Dubouis, Nicolas;
Girault, Hubert;
Coppens, Marc-Olivier;
(2025)
Water electrolysis technologies: the importance of new cell designs and fundamental modelling to guide industrial-scale development.
Energy & Environmental Science
10.1039/D4EE05559D.
(In press).
Preview |
PDF
RiazTrogadasAymePerrotSachsDubouisGiraultCoppens_EES25.pdf - Published Version Download (5MB) | Preview |
Abstract
Large-scale, sustainable, low-cost production of hydrogen can reduce the negative effects of climate change by decarbonising energy infrastructure. Low-carbon hydrogen can be synthesised via water electrolysis. Today, however, this only constitutes a minor proportion of global hydrogen production, as fossil fuel-based processes are used predominantly with large amounts of carbon emissions. Low-temperature electrolysis (< 100 ºC) has garnered significant attention, due to lower capital cost and operational complexity than high-temperature electrolysis (> 700 ºC). In this review, the latest advancements in low-temperature water electrolysers are provided from the current-generation, membrane-based designs to the next-generation membrane-less designs. The coverage of electrodes by gas bubbles can cause a drastic loss in their activity and, hence, the hydrogen production efficiency of the device. To alleviate this issue, aerophobic and aerophilic electrodes are being developed. Their advantageous properties are discussed. Furthermore, models of water electrolysers are reviewed to provide critical understanding of the different parameters affecting the electrochemical performance of these devices. Finally, an industrial perspective is given to discuss the challenges in large-scale Gigawatt-level deployment of these devices in coming decades to meet future green hydrogen demand.
| Type: | Article |
|---|---|
| Title: | Water electrolysis technologies: the importance of new cell designs and fundamental modelling to guide industrial-scale development |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1039/D4EE05559D |
| Publisher version: | http://dx.doi.org/10.1039/D4EE05559D |
| Language: | English |
| Additional information: | © Royal Society of Chemistry 2025. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence (https://creativecommons.org/licenses/by/3.0/deed.en). |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10208216 |
Archive Staff Only
 |
View Item |
