Journal article 641 views 104 downloads
Woven Stainless-Steel Mesh as a Gas Separation Membrane for Alkaline Water-Splitting Electrolysis
,
Charlie Dunnill
Membranes, Volume: 10, Issue: 5, Start page: 109
Swansea University Authors:
Michael Warwick , Charlie Dunnill
-
PDF | Version of Record
This is an open access article distributed under the Creative Commons Attribution License.
Download (1.08MB)
DOI (Published version): 10.3390/membranes10050109
Abstract
A 316-grade woven stainless-steel mesh membrane was investigated as a gas-separation membrane for alkaline water-splitting electrolysis. Its resistance was measured using electrochemical impedance spectroscopy (EIS) and linear sweep voltammetry (LSV), with the conclusion that it presented approximat...
| Published in: | Membranes |
|---|---|
| ISSN: | 2077-0375 |
| Published: |
MDPI AG
2020
|
| Online Access: |
Check full text
|
| URI: | https://cronfa.swan.ac.uk/Record/cronfa54309 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Abstract: |
A 316-grade woven stainless-steel mesh membrane was investigated as a gas-separation membrane for alkaline water-splitting electrolysis. Its resistance was measured using electrochemical impedance spectroscopy (EIS) and linear sweep voltammetry (LSV), with the conclusion that it presented approximately half the resistance of a comparable commercial alternative (ZirfonTM). Its gas-separation performance was analysed using gas chromatography (GC) at 140 mA cm−2, where it achieved 99.25% purity at the hydrogen outlet of the electrolyser. This fell to 97.5% under pumped circulation, which highlights that it is sensitive to pressure differentials. Nevertheless, this mixture is still more than a factor two inside the upper flammability limit of hydrogen in oxygen. It is hoped that such a low-cost material may bring entry-level electrolysis to many hitherto discounted applications. |
|---|---|
| Keywords: |
membrane; water-splitting; electrolysis; alkaline; gas-separation; hydrogen production |
| College: |
Faculty of Science and Engineering |
| Issue: |
5 |
| Start Page: |
109 |