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Effects of Artificial River Water on PEM Water Electrolysis Performance
| Content Provider | MDPI |
|---|---|
| Author | Yoshimura, Ryoya Wai, Soe Htet Ota, Yasuyuki Nishioka, Kensuke Suzuki, Yoshihiro |
| Copyright Year | 2022 |
| Description | Hydrogen, a clean and renewable energy source, is a promising substitute for fossil fuels. Electricity-driven water electrolysis is an attractive pathway for clean hydrogen production. Accordingly, the development of electrolysis cells has drawn researchers’ attention to capital costs related to noble catalyst reduction and membrane degradation by the contaminations. In the literature, polymer electrolyte membranes (PEMs) have been studied on single cations contamination. In this study, we investigated the performance of a PEM on monovalent and divalent cation contamination by feed water. Artificial river water, called soft water, was used to analyze the effect of impurities on the PEM. The results demonstrated that the operating voltage drastically increased and induced cell failure with increasing $Mg^{2+}$ and $Ca^{2+}$ concentrations; however, it did not increase for $Na^{+}$ and $K^{+}$ after increase in voltage. Therefore, divalent cations have a stronger affinity than monovalent cations to degrade PEM and should be effectively excluded from the feed water. |
| Starting Page | 934 |
| e-ISSN | 20734344 |
| DOI | 10.3390/catal12090934 |
| Journal | Catalysts |
| Issue Number | 9 |
| Volume Number | 12 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2022-08-24 |
| Access Restriction | Open |
| Subject Keyword | Catalysts Environmental Engineering Cations Contaminations Hydrogen Generation Pem Performance Degradation Solar-to-hydrogen Water Electrolysis |
| Content Type | Text |
| Resource Type | Article |
