High-entropy oxide, (FeCoNiMnV)xO, boost the oxygen evolution
The sluggish kinetics of the oxygen evolution reaction (OER), an essential half-reaction of water splitting, lead to high OER overpotential and low energy-conversion efficiency, hampering its industrial application. Therefore, considerable attention has been paid to the development of efficient cata...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2024-01-01
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| Series: | ChemPhysMater |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2772571523000396 |
| _version_ | 1797352644849696768 |
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| author | Chendong Kou Meiling Qin Wei Song Weijun Zhu Jieshu Zhou Christopher Dorma Momo Jr Hongyan Liang |
| author_facet | Chendong Kou Meiling Qin Wei Song Weijun Zhu Jieshu Zhou Christopher Dorma Momo Jr Hongyan Liang |
| author_sort | Chendong Kou |
| collection | DOAJ |
| description | The sluggish kinetics of the oxygen evolution reaction (OER), an essential half-reaction of water splitting, lead to high OER overpotential and low energy-conversion efficiency, hampering its industrial application. Therefore, considerable attention has been paid to the development of efficient catalysts to accelerate the OER. In this study, we synthesized the high-entropy oxides [(FeCoNiMnV)xO] and used them as efficient OER catalysts. A simple oil-phase method was used to synthesize (FeCoNiMnV)xO. The catalytic performances of the (FeCoNiMnV)xO catalysts were modified by tuning the reaction temperature. The optimized (FeCoNiMnV)xO catalyst exhibited multiple elemental interactions and abundant exposed active sites, leading to an overpotential of approximately 264 mV to reach a current density of 10 mA cm−2 in 1 M KOH and stability of 50 h at 1000 mA cm−2. Thus, a highly active OER catalyst was synthesized. This study provides an efficient approach for the synthesis of high-entropy oxides. |
| first_indexed | 2024-03-08T13:18:47Z |
| format | Article |
| id | doaj.art-a4433bd9029d40cd8eef69a0ec4898ad |
| institution | Directory Open Access Journal |
| issn | 2772-5715 |
| language | English |
| last_indexed | 2024-03-08T13:18:47Z |
| publishDate | 2024-01-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | ChemPhysMater |
| spelling | doaj.art-a4433bd9029d40cd8eef69a0ec4898ad2024-01-18T04:18:45ZengKeAi Communications Co., Ltd.ChemPhysMater2772-57152024-01-0131111117High-entropy oxide, (FeCoNiMnV)xO, boost the oxygen evolutionChendong Kou0Meiling Qin1Wei Song2Weijun Zhu3Jieshu Zhou4Christopher Dorma Momo Jr5Hongyan Liang6School of Materials Science and Engineering, Tianjin University, Tianjin 300350, ChinaCETC Deqing Huaying Electronics Co., Ltd., ChinaCETC Deqing Huaying Electronics Co., Ltd., ChinaCETC Deqing Huaying Electronics Co., Ltd., ChinaSchool of Materials Science and Engineering, Tianjin University, Tianjin 300350, ChinaSchool of Materials Science and Engineering, Tianjin University, Tianjin 300350, ChinaSchool of Materials Science and Engineering, Tianjin University, Tianjin 300350, China; Corresponding author.The sluggish kinetics of the oxygen evolution reaction (OER), an essential half-reaction of water splitting, lead to high OER overpotential and low energy-conversion efficiency, hampering its industrial application. Therefore, considerable attention has been paid to the development of efficient catalysts to accelerate the OER. In this study, we synthesized the high-entropy oxides [(FeCoNiMnV)xO] and used them as efficient OER catalysts. A simple oil-phase method was used to synthesize (FeCoNiMnV)xO. The catalytic performances of the (FeCoNiMnV)xO catalysts were modified by tuning the reaction temperature. The optimized (FeCoNiMnV)xO catalyst exhibited multiple elemental interactions and abundant exposed active sites, leading to an overpotential of approximately 264 mV to reach a current density of 10 mA cm−2 in 1 M KOH and stability of 50 h at 1000 mA cm−2. Thus, a highly active OER catalyst was synthesized. This study provides an efficient approach for the synthesis of high-entropy oxides.http://www.sciencedirect.com/science/article/pii/S2772571523000396High-entropy oxidesSolvothermal methodOxygen evolution reactionWater splitting |
| spellingShingle | Chendong Kou Meiling Qin Wei Song Weijun Zhu Jieshu Zhou Christopher Dorma Momo Jr Hongyan Liang High-entropy oxide, (FeCoNiMnV)xO, boost the oxygen evolution ChemPhysMater High-entropy oxides Solvothermal method Oxygen evolution reaction Water splitting |
| title | High-entropy oxide, (FeCoNiMnV)xO, boost the oxygen evolution |
| title_full | High-entropy oxide, (FeCoNiMnV)xO, boost the oxygen evolution |
| title_fullStr | High-entropy oxide, (FeCoNiMnV)xO, boost the oxygen evolution |
| title_full_unstemmed | High-entropy oxide, (FeCoNiMnV)xO, boost the oxygen evolution |
| title_short | High-entropy oxide, (FeCoNiMnV)xO, boost the oxygen evolution |
| title_sort | high entropy oxide feconimnv xo boost the oxygen evolution |
| topic | High-entropy oxides Solvothermal method Oxygen evolution reaction Water splitting |
| url | http://www.sciencedirect.com/science/article/pii/S2772571523000396 |
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