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http://eprints.org/relation/isVersionOf https://researchdata.gla.ac.uk/id/document/7261 http://eprints.org/relation/isVolatileVersionOf https://researchdata.gla.ac.uk/id/document/7261 http://eprints.org/relation/isIndexCodesVersionOf https://researchdata.gla.ac.uk/id/document/7261 archive 32966 disk0/00/00/20/83 2025-11-28 16:27:20 2025-12-04 15:01:10 2025-11-28 16:27:20 data_collection show Obeten Mbang Eze 62694 Ertekin Zeliha 65176 0000-0001-6106-7987 Lalaguna Paula L. Kadodwala Malcolm 9189 0000-0003-4989-5688 Symes Mark 15851 0000-0001-8067-5240 glaresearchdata:2025-11-07-2083 30100000 Additional funding: Tetfund (Nigeria) University of Cross River State Perfluorosulfonic acid membranes are currently the state-of-the-art in terms of electrolytes for proton exchange membrane electrolysers for the production of green hydrogen using renewably-generated power. This is because such materials are chemically robust, have low resistance, and importantly because they greatly reduce the mixing of the hydrogen and oxygen products of electrolysis. However, these materials are also acknowledged to have a number of drawbacks for large-scale use, including high cost, supply shortages and the fact that perfluoro compounds are “forever chemicals” that persist in the environment and are difficult to recycle. In decoupled electrolysis, the hydrogen and oxygen products can be generated in entirely different spaces at entirely different times, and so (at least in theory), gas-impermeable perfluorosulfonic acid membranes are not required in order to prevent gas mixing. However, the use of alternative membranes in solution-phase decoupled electrolysis has received very little attention to date. Herein, we show that a (gas-permeable) simple cellulose-based membrane can be employed in a solution-phase decoupled electrolysis flow system across a range of current densities (25– 500 mA/cm2) for 5 h, without evidence for any significant gas mixing. Although optimisation of the membranes for more extended operation is required, this work serves to show that cheap and simple size exclusion membranes are viable for safe water electrolysis in a decoupled system, potentially allowing the replacement of perfluorosulfonic acid membranes in a number of electrolysis applications. 2025-11-07 University of Glasgow 10.5525/gla.researchdata.2083 Spreadsheet University of Glasgow 312636 Driving energetically uphill processes using metal-ligand coordination complexes - Renewal Mark Symes The Royal Society (ROYSOC) URF\R\211007 Chemistry 316623 Decoupled Electrolysis for the Production of Zero-Carbon Hydrogen Mark Symes Engineering and Physical Sciences Research Council (EPSRC) EP/W033135/1 Chemistry 325847 EPSRC UK-Japan collaboration in advanced materials Malcolm Kadodwala Engineering and Physical Sciences Research Council (EPSRC) UKRI653 Chemistry FALSE English 2024-07 2025-11 2035-11-28 R email FALSE FALSE https://eprints.gla.ac.uk/id/eprint/372843