Electrical Double Layer Mechanism Analysis of PEM Water Electrolysis for Frequency Limitation of Pulsed Currents
This paper proposes a method for improving hydrogen generation using pulse current in a proton exchange membrane-type electrolyzer (PEMEL). Traditional methods of electrolysis using direct current are known as the simplest approach to produce hydrogen. However, it is highly dependent on environmenta...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-11-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/14/22/7822 |
| _version_ | 1797510457461833728 |
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| author | Jae-Hoon Kim Chang-Yeol Oh Ki-Ryong Kim Jong-Pil Lee Tae-Jin Kim |
| author_facet | Jae-Hoon Kim Chang-Yeol Oh Ki-Ryong Kim Jong-Pil Lee Tae-Jin Kim |
| author_sort | Jae-Hoon Kim |
| collection | DOAJ |
| description | This paper proposes a method for improving hydrogen generation using pulse current in a proton exchange membrane-type electrolyzer (PEMEL). Traditional methods of electrolysis using direct current are known as the simplest approach to produce hydrogen. However, it is highly dependent on environmental variables, such as the temperature and catalyst used, to enhance the rate of electrolysis. Therefore, we propose electrolysis using a pulse current that can apply several dependent variables rather than environmental variables. The proposed method overcomes the difficulties in selecting the frequency of the pulse current by deriving factors affecting hydrogen generation while changing the concentration generated by the cell interface during the pulsed water-electrolysis process. The correlation between the electrolyzer load and the frequency characteristics was analyzed, and the limit value of the applicable frequency of the pulse current was derived through electrical modeling. In addition, the operating characteristics of PEMEL could be predicted, and the PEMEL using the proposed pulse current was verified through experiments. |
| first_indexed | 2024-03-10T05:31:45Z |
| format | Article |
| id | doaj.art-b347edd69fab47858992aca8a2a01f04 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T05:31:45Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-b347edd69fab47858992aca8a2a01f042023-11-22T23:13:52ZengMDPI AGEnergies1996-10732021-11-011422782210.3390/en14227822Electrical Double Layer Mechanism Analysis of PEM Water Electrolysis for Frequency Limitation of Pulsed CurrentsJae-Hoon Kim0Chang-Yeol Oh1Ki-Ryong Kim2Jong-Pil Lee3Tae-Jin Kim4Power Conversion System Research Center, Korea Electrotechnology Research Institute (KERI), Changwon 51543, KoreaPower Conversion System Research Center, Korea Electrotechnology Research Institute (KERI), Changwon 51543, KoreaPower Conversion System Research Center, Korea Electrotechnology Research Institute (KERI), Changwon 51543, KoreaPower Conversion System Research Center, Korea Electrotechnology Research Institute (KERI), Changwon 51543, KoreaPower Conversion System Research Center, Korea Electrotechnology Research Institute (KERI), Changwon 51543, KoreaThis paper proposes a method for improving hydrogen generation using pulse current in a proton exchange membrane-type electrolyzer (PEMEL). Traditional methods of electrolysis using direct current are known as the simplest approach to produce hydrogen. However, it is highly dependent on environmental variables, such as the temperature and catalyst used, to enhance the rate of electrolysis. Therefore, we propose electrolysis using a pulse current that can apply several dependent variables rather than environmental variables. The proposed method overcomes the difficulties in selecting the frequency of the pulse current by deriving factors affecting hydrogen generation while changing the concentration generated by the cell interface during the pulsed water-electrolysis process. The correlation between the electrolyzer load and the frequency characteristics was analyzed, and the limit value of the applicable frequency of the pulse current was derived through electrical modeling. In addition, the operating characteristics of PEMEL could be predicted, and the PEMEL using the proposed pulse current was verified through experiments.https://www.mdpi.com/1996-1073/14/22/7822electrolyzer (EL)electrical modelingfrequency limitationproton exchange membrane-type electrolyzer (PEMEL)pulse current |
| spellingShingle | Jae-Hoon Kim Chang-Yeol Oh Ki-Ryong Kim Jong-Pil Lee Tae-Jin Kim Electrical Double Layer Mechanism Analysis of PEM Water Electrolysis for Frequency Limitation of Pulsed Currents Energies electrolyzer (EL) electrical modeling frequency limitation proton exchange membrane-type electrolyzer (PEMEL) pulse current |
| title | Electrical Double Layer Mechanism Analysis of PEM Water Electrolysis for Frequency Limitation of Pulsed Currents |
| title_full | Electrical Double Layer Mechanism Analysis of PEM Water Electrolysis for Frequency Limitation of Pulsed Currents |
| title_fullStr | Electrical Double Layer Mechanism Analysis of PEM Water Electrolysis for Frequency Limitation of Pulsed Currents |
| title_full_unstemmed | Electrical Double Layer Mechanism Analysis of PEM Water Electrolysis for Frequency Limitation of Pulsed Currents |
| title_short | Electrical Double Layer Mechanism Analysis of PEM Water Electrolysis for Frequency Limitation of Pulsed Currents |
| title_sort | electrical double layer mechanism analysis of pem water electrolysis for frequency limitation of pulsed currents |
| topic | electrolyzer (EL) electrical modeling frequency limitation proton exchange membrane-type electrolyzer (PEMEL) pulse current |
| url | https://www.mdpi.com/1996-1073/14/22/7822 |
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