Bibliographic Details
| Title: |
A catalyst-coated diaphragm assembly to improve the performance and energy efficiency of alkaline water electrolysers |
| Authors: |
Zhuang Xu, Yanying Liu, Xiaobo Cheng, Yunshan Shang, Yongtao Wang, Jing Wang, Wenshi Li, Guangli He |
| Source: |
Communications Engineering, Vol 4, Iss 1, Pp 1-9 (2025) |
| Publisher Information: |
Nature Portfolio, 2025. |
| Publication Year: |
2025 |
| Collection: |
LCC:Engineering (General). Civil engineering (General) |
| Subject Terms: |
Engineering (General). Civil engineering (General), TA1-2040 |
| More Details: |
Abstract Alkaline water electrolysers are ideal for gigawatt-scale hydrogen production due to the usage of non-precious metal and low-cost raw materials. However, their performances are modest with the separated electrode and diaphragm structure which can date back to more than 100 years ago. Here we report a catalyst-coated diaphragm assembly to improve the performance of alkaline water electrolysers. The transport resistance of OH- ions is reduced and the electrochemical surface area of catalysts is enlarged by more than forty fold, representing more than 40% increase in hydrogen production rate or as much as 16% reduction in energy consumption. The electrolyser with our catalyst-coated diaphragm assembly delivers current densities as high as 1 A cm−2 at 1.8 V or 2 A cm−2 at 2 V and shows good stability after more than 1000 hours of operation. Therefore, the catalyst-coated diaphragm assembly route is promising for the development of high-performance and efficient alkaline water electrolysers. |
| Document Type: |
article |
| File Description: |
electronic resource |
| Language: |
English |
| ISSN: |
2731-3395 |
| Relation: |
https://doaj.org/toc/2731-3395 |
| DOI: |
10.1038/s44172-025-00344-2 |
| Access URL: |
https://doaj.org/article/fa3d66a6fa204118bfff463d4c492468 |
| Accession Number: |
edsdoj.fa3d66a6fa204118bfff463d4c492468 |
| Database: |
Directory of Open Access Journals |
