Long-Acting Real-Time Microscopic Monitoring Inside the Proton Exchange Membrane Water Electrolyzer
The proton exchange membrane water electrolyzer (PEMWE) requires a high operating voltage for hydrogen production to accelerate the decomposition of hydrogen molecules so that the PEMWE ages or fails. According to the prior findings of this R&D team, temperature and voltage can influence the per...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-06-01
|
| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/23/12/5595 |
| _version_ | 1797592649306210304 |
|---|---|
| author | Chi-Yuan Lee Chia-Hung Chen Hsian-Chun Chuang Hsiao-Te Hsieh Yen-Chen Chiu |
| author_facet | Chi-Yuan Lee Chia-Hung Chen Hsian-Chun Chuang Hsiao-Te Hsieh Yen-Chen Chiu |
| author_sort | Chi-Yuan Lee |
| collection | DOAJ |
| description | The proton exchange membrane water electrolyzer (PEMWE) requires a high operating voltage for hydrogen production to accelerate the decomposition of hydrogen molecules so that the PEMWE ages or fails. According to the prior findings of this R&D team, temperature and voltage can influence the performance or aging of PEMWE. As the PEMWE ages inside, the nonuniform flow distribution results in large temperature differences, current density drops, and runner plate corrosion. The mechanical stress and thermal stress resulting from pressure distribution nonuniformity will induce the local aging or failure of PEMWE. The authors of this study used gold etchant for etching, and acetone was used for the lift-off part. The wet etching method has the risk of over-etching, and the cost of the etching solution is also higher than that of acetone. Therefore, the authors of this experiment adopted a lift-off process. Using the flexible seven-in-one (voltage, current, temperature, humidity, flow, pressure, oxygen) microsensor developed by our team, after optimized design, fabrication, and reliability testing, it was embedded in PEMWE for 200 h. The results of our accelerated aging test prove that these physical factors affect the aging of PEMWE. |
| first_indexed | 2024-03-11T01:57:09Z |
| format | Article |
| id | doaj.art-8698c3ad181d4d5cb4d689f5a1f80eb3 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-11T01:57:09Z |
| publishDate | 2023-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-8698c3ad181d4d5cb4d689f5a1f80eb32023-11-18T12:33:20ZengMDPI AGSensors1424-82202023-06-012312559510.3390/s23125595Long-Acting Real-Time Microscopic Monitoring Inside the Proton Exchange Membrane Water ElectrolyzerChi-Yuan Lee0Chia-Hung Chen1Hsian-Chun Chuang2Hsiao-Te Hsieh3Yen-Chen Chiu4Department of Mechanical Engineering, Yuan Ze Fuel Cell Center, Yuan Ze University, Taoyuan 32003, TaiwanHomytech Global Co., Ltd., Taoyuan 33464, TaiwanDepartment of Mechanical Engineering, Yuan Ze Fuel Cell Center, Yuan Ze University, Taoyuan 32003, TaiwanDepartment of Mechanical Engineering, Yuan Ze Fuel Cell Center, Yuan Ze University, Taoyuan 32003, TaiwanDepartment of Mechanical Engineering, Yuan Ze Fuel Cell Center, Yuan Ze University, Taoyuan 32003, TaiwanThe proton exchange membrane water electrolyzer (PEMWE) requires a high operating voltage for hydrogen production to accelerate the decomposition of hydrogen molecules so that the PEMWE ages or fails. According to the prior findings of this R&D team, temperature and voltage can influence the performance or aging of PEMWE. As the PEMWE ages inside, the nonuniform flow distribution results in large temperature differences, current density drops, and runner plate corrosion. The mechanical stress and thermal stress resulting from pressure distribution nonuniformity will induce the local aging or failure of PEMWE. The authors of this study used gold etchant for etching, and acetone was used for the lift-off part. The wet etching method has the risk of over-etching, and the cost of the etching solution is also higher than that of acetone. Therefore, the authors of this experiment adopted a lift-off process. Using the flexible seven-in-one (voltage, current, temperature, humidity, flow, pressure, oxygen) microsensor developed by our team, after optimized design, fabrication, and reliability testing, it was embedded in PEMWE for 200 h. The results of our accelerated aging test prove that these physical factors affect the aging of PEMWE.https://www.mdpi.com/1424-8220/23/12/5595PEMWEMEMSflexible 7-in-1 microsensor200 h accelerated aging testtemperature differencecurrent drop |
| spellingShingle | Chi-Yuan Lee Chia-Hung Chen Hsian-Chun Chuang Hsiao-Te Hsieh Yen-Chen Chiu Long-Acting Real-Time Microscopic Monitoring Inside the Proton Exchange Membrane Water Electrolyzer Sensors PEMWE MEMS flexible 7-in-1 microsensor 200 h accelerated aging test temperature difference current drop |
| title | Long-Acting Real-Time Microscopic Monitoring Inside the Proton Exchange Membrane Water Electrolyzer |
| title_full | Long-Acting Real-Time Microscopic Monitoring Inside the Proton Exchange Membrane Water Electrolyzer |
| title_fullStr | Long-Acting Real-Time Microscopic Monitoring Inside the Proton Exchange Membrane Water Electrolyzer |
| title_full_unstemmed | Long-Acting Real-Time Microscopic Monitoring Inside the Proton Exchange Membrane Water Electrolyzer |
| title_short | Long-Acting Real-Time Microscopic Monitoring Inside the Proton Exchange Membrane Water Electrolyzer |
| title_sort | long acting real time microscopic monitoring inside the proton exchange membrane water electrolyzer |
| topic | PEMWE MEMS flexible 7-in-1 microsensor 200 h accelerated aging test temperature difference current drop |
| url | https://www.mdpi.com/1424-8220/23/12/5595 |
| work_keys_str_mv | AT chiyuanlee longactingrealtimemicroscopicmonitoringinsidetheprotonexchangemembranewaterelectrolyzer AT chiahungchen longactingrealtimemicroscopicmonitoringinsidetheprotonexchangemembranewaterelectrolyzer AT hsianchunchuang longactingrealtimemicroscopicmonitoringinsidetheprotonexchangemembranewaterelectrolyzer AT hsiaotehsieh longactingrealtimemicroscopicmonitoringinsidetheprotonexchangemembranewaterelectrolyzer AT yenchenchiu longactingrealtimemicroscopicmonitoringinsidetheprotonexchangemembranewaterelectrolyzer |