NiFe<sub>2</sub>O<sub>4</sub> Material on Carbon Paper as an Electrocatalyst for Alkaline Water Electrolysis Module
NiFe<sub>2</sub>O<sub>4</sub> material is grown on carbon paper (CP) with the hydrothermal method for use as electrocatalysts in an alkaline electrolyzer. NiFe<sub>2</sub>O<sub>4</sub> material is used as the anode and cathode catalysts (named NiFe(+)/...
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| Format: | Article |
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MDPI AG
2023-12-01
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| Series: | Micromachines |
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| Online Access: | https://www.mdpi.com/2072-666X/15/1/62 |
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| author | Ying-Chyi Wang Shuo-En Yu Yu-Lun Su I-Chun Cheng Yi-Cheng Chuang Yong-Song Chen Jian-Zhang Chen |
| author_facet | Ying-Chyi Wang Shuo-En Yu Yu-Lun Su I-Chun Cheng Yi-Cheng Chuang Yong-Song Chen Jian-Zhang Chen |
| author_sort | Ying-Chyi Wang |
| collection | DOAJ |
| description | NiFe<sub>2</sub>O<sub>4</sub> material is grown on carbon paper (CP) with the hydrothermal method for use as electrocatalysts in an alkaline electrolyzer. NiFe<sub>2</sub>O<sub>4</sub> material is used as the anode and cathode catalysts (named NiFe(+)/NiFe(−) hereafter). The results are compared with those obtained using CP/NiFe as the anode and CP/Ru as the cathode (named NiFe)(+)/Ru(−) hereafter). During cell operation with NiFe(+)/Ru(−), the current density reaches 500 mA/cm<sup>2</sup> at a cell voltage of 1.79 V, with a specific energy consumption of 4.9 kWh/m<sup>3</sup> and an energy efficiency of 66.2%. In comparison, for NiFe(+)/NiFe(−), the current density reaches 500 mA/cm<sup>2</sup> at a cell voltage of 2.23 V, with a specific energy consumption of 5.7 kWh/m<sup>3</sup> and an energy efficiency of 56.6%. The Faradaic efficiency is 96–99%. With the current density fixed at 400 mA/cm<sup>2</sup>, after performing a test for 150 h, the cell voltage with NiFe(+)/Ru(−) increases by 0.167 V, whereas that with NiFe(+)/NiFe(−) decreases by only 0.010 V. Good, long-term stability is demonstrated. |
| first_indexed | 2024-03-08T10:40:08Z |
| format | Article |
| id | doaj.art-28bfb24305404cab8196224ca110977b |
| institution | Directory Open Access Journal |
| issn | 2072-666X |
| language | English |
| last_indexed | 2024-03-08T10:40:08Z |
| publishDate | 2023-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj.art-28bfb24305404cab8196224ca110977b2024-01-26T17:43:43ZengMDPI AGMicromachines2072-666X2023-12-011516210.3390/mi15010062NiFe<sub>2</sub>O<sub>4</sub> Material on Carbon Paper as an Electrocatalyst for Alkaline Water Electrolysis ModuleYing-Chyi Wang0Shuo-En Yu1Yu-Lun Su2I-Chun Cheng3Yi-Cheng Chuang4Yong-Song Chen5Jian-Zhang Chen6Institute of Applied Mechanics, National Taiwan University, Taipei City 106319, TaiwanGraduate School of Advanced Technology, National Taiwan University, Taipei City 106319, TaiwanInstitute of Applied Mechanics, National Taiwan University, Taipei City 106319, TaiwanDepartment of Electrical Engineering, Graduate Institute of Photonics and Optoelectronics, National Taiwan University, Taipei City 106319, TaiwanDepartment of Mechanical Engineering, Advanced Institute of Manufacturing with High-Tech Innovations, National Chung Cheng University, Chiayi County 621301, TaiwanDepartment of Mechanical Engineering, Advanced Institute of Manufacturing with High-Tech Innovations, National Chung Cheng University, Chiayi County 621301, TaiwanInstitute of Applied Mechanics, National Taiwan University, Taipei City 106319, TaiwanNiFe<sub>2</sub>O<sub>4</sub> material is grown on carbon paper (CP) with the hydrothermal method for use as electrocatalysts in an alkaline electrolyzer. NiFe<sub>2</sub>O<sub>4</sub> material is used as the anode and cathode catalysts (named NiFe(+)/NiFe(−) hereafter). The results are compared with those obtained using CP/NiFe as the anode and CP/Ru as the cathode (named NiFe)(+)/Ru(−) hereafter). During cell operation with NiFe(+)/Ru(−), the current density reaches 500 mA/cm<sup>2</sup> at a cell voltage of 1.79 V, with a specific energy consumption of 4.9 kWh/m<sup>3</sup> and an energy efficiency of 66.2%. In comparison, for NiFe(+)/NiFe(−), the current density reaches 500 mA/cm<sup>2</sup> at a cell voltage of 2.23 V, with a specific energy consumption of 5.7 kWh/m<sup>3</sup> and an energy efficiency of 56.6%. The Faradaic efficiency is 96–99%. With the current density fixed at 400 mA/cm<sup>2</sup>, after performing a test for 150 h, the cell voltage with NiFe(+)/Ru(−) increases by 0.167 V, whereas that with NiFe(+)/NiFe(−) decreases by only 0.010 V. Good, long-term stability is demonstrated.https://www.mdpi.com/2072-666X/15/1/62alkaline water electrolysishydrothermal methodelectrocatalystNiFeRu |
| spellingShingle | Ying-Chyi Wang Shuo-En Yu Yu-Lun Su I-Chun Cheng Yi-Cheng Chuang Yong-Song Chen Jian-Zhang Chen NiFe<sub>2</sub>O<sub>4</sub> Material on Carbon Paper as an Electrocatalyst for Alkaline Water Electrolysis Module Micromachines alkaline water electrolysis hydrothermal method electrocatalyst NiFe Ru |
| title | NiFe<sub>2</sub>O<sub>4</sub> Material on Carbon Paper as an Electrocatalyst for Alkaline Water Electrolysis Module |
| title_full | NiFe<sub>2</sub>O<sub>4</sub> Material on Carbon Paper as an Electrocatalyst for Alkaline Water Electrolysis Module |
| title_fullStr | NiFe<sub>2</sub>O<sub>4</sub> Material on Carbon Paper as an Electrocatalyst for Alkaline Water Electrolysis Module |
| title_full_unstemmed | NiFe<sub>2</sub>O<sub>4</sub> Material on Carbon Paper as an Electrocatalyst for Alkaline Water Electrolysis Module |
| title_short | NiFe<sub>2</sub>O<sub>4</sub> Material on Carbon Paper as an Electrocatalyst for Alkaline Water Electrolysis Module |
| title_sort | nife sub 2 sub o sub 4 sub material on carbon paper as an electrocatalyst for alkaline water electrolysis module |
| topic | alkaline water electrolysis hydrothermal method electrocatalyst NiFe Ru |
| url | https://www.mdpi.com/2072-666X/15/1/62 |
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