In Situ Synthesis of Ternary Ni-Fe-Mo Nanosheet Arrays for OER in Water Electrolysis
Water electrolysis is a promising path to the industrialization development of hydrogen energy. The exploitation of high-efficiency and inexpensive catalysts become important to the mass use of water decomposition. Ni-based nanomaterials have exhibited great potential for the catalysis of water spli...
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2025-01-01
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| Series: | Molecules |
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| author | Zhi Lu Yifan Guo Shilin Li Jiaqi Ding Yingzi Ren Kun Tang Jiefeng Wang Chengxin Li Zishuo Shi Ziqi Sun Hongbo Meng Guangxin Wang |
| author_facet | Zhi Lu Yifan Guo Shilin Li Jiaqi Ding Yingzi Ren Kun Tang Jiefeng Wang Chengxin Li Zishuo Shi Ziqi Sun Hongbo Meng Guangxin Wang |
| author_sort | Zhi Lu |
| collection | DOAJ |
| description | Water electrolysis is a promising path to the industrialization development of hydrogen energy. The exploitation of high-efficiency and inexpensive catalysts become important to the mass use of water decomposition. Ni-based nanomaterials have exhibited great potential for the catalysis of water splitting, which have attracted the attention of researchers around the world. Here, we prepared a novel Mo-doped NiFe-based layered double hydroxide (LDH) with a nanoarray microstructure on Ni foam. The doping amount of Mo can significantly change the microstructure of the electrocatalysis, which will further affect the oxygen evolution reaction (OER) performance of water splitting. This novel nanomaterial required only an overpotential of 227 mV for 10 mA cm<sup>−2</sup> and a Tafel slope of 54.8 mV/dec in 1 M KOH. Meanwhile, there was no Mo, and the NiFe-LDH needed 233 mV to attain to 10 mA cm<sup>−2</sup>. Compared to the NiFe-LDH without Mo, the NiFeMo-LDH nanosheet arrays exhibited enhanced activities with 17.1 mV/dec less Tafel in OER. The good performance of the electrocatalyst is ascribed to the special nanosheet arrays and the heterostructure of the Ni-Fe-Mo system. These features help to increase the active surface, enhancing the efficient charge transfer and the reactive activity in OER. |
| format | Article |
| id | doaj-art-3ee6000c70744b238afc592612fc2bfa |
| institution | Kabale University |
| issn | 1420-3049 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj-art-3ee6000c70744b238afc592612fc2bfa2025-01-10T13:19:07ZengMDPI AGMolecules1420-30492025-01-0130117710.3390/molecules30010177In Situ Synthesis of Ternary Ni-Fe-Mo Nanosheet Arrays for OER in Water ElectrolysisZhi Lu0Yifan Guo1Shilin Li2Jiaqi Ding3Yingzi Ren4Kun Tang5Jiefeng Wang6Chengxin Li7Zishuo Shi8Ziqi Sun9Hongbo Meng10Guangxin Wang11School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471003, ChinaSchool of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471003, ChinaSchool of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471003, ChinaSchool of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471003, ChinaSchool of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471003, ChinaSchool of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471003, ChinaSchool of Mechanical Engineering, Anyang Institute of Technology, Anyang 455099, ChinaSchool of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471003, ChinaSchool of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471003, ChinaSchool of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471003, ChinaLuoyang Crystal Union Photoelectric Materials Co., Ltd., Luoyang 471000, ChinaSchool of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471003, ChinaWater electrolysis is a promising path to the industrialization development of hydrogen energy. The exploitation of high-efficiency and inexpensive catalysts become important to the mass use of water decomposition. Ni-based nanomaterials have exhibited great potential for the catalysis of water splitting, which have attracted the attention of researchers around the world. Here, we prepared a novel Mo-doped NiFe-based layered double hydroxide (LDH) with a nanoarray microstructure on Ni foam. The doping amount of Mo can significantly change the microstructure of the electrocatalysis, which will further affect the oxygen evolution reaction (OER) performance of water splitting. This novel nanomaterial required only an overpotential of 227 mV for 10 mA cm<sup>−2</sup> and a Tafel slope of 54.8 mV/dec in 1 M KOH. Meanwhile, there was no Mo, and the NiFe-LDH needed 233 mV to attain to 10 mA cm<sup>−2</sup>. Compared to the NiFe-LDH without Mo, the NiFeMo-LDH nanosheet arrays exhibited enhanced activities with 17.1 mV/dec less Tafel in OER. The good performance of the electrocatalyst is ascribed to the special nanosheet arrays and the heterostructure of the Ni-Fe-Mo system. These features help to increase the active surface, enhancing the efficient charge transfer and the reactive activity in OER.https://www.mdpi.com/1420-3049/30/1/177nanosheet arraysNi foamOERwater electrolysis |
| spellingShingle | Zhi Lu Yifan Guo Shilin Li Jiaqi Ding Yingzi Ren Kun Tang Jiefeng Wang Chengxin Li Zishuo Shi Ziqi Sun Hongbo Meng Guangxin Wang In Situ Synthesis of Ternary Ni-Fe-Mo Nanosheet Arrays for OER in Water Electrolysis Molecules nanosheet arrays Ni foam OER water electrolysis |
| title | In Situ Synthesis of Ternary Ni-Fe-Mo Nanosheet Arrays for OER in Water Electrolysis |
| title_full | In Situ Synthesis of Ternary Ni-Fe-Mo Nanosheet Arrays for OER in Water Electrolysis |
| title_fullStr | In Situ Synthesis of Ternary Ni-Fe-Mo Nanosheet Arrays for OER in Water Electrolysis |
| title_full_unstemmed | In Situ Synthesis of Ternary Ni-Fe-Mo Nanosheet Arrays for OER in Water Electrolysis |
| title_short | In Situ Synthesis of Ternary Ni-Fe-Mo Nanosheet Arrays for OER in Water Electrolysis |
| title_sort | in situ synthesis of ternary ni fe mo nanosheet arrays for oer in water electrolysis |
| topic | nanosheet arrays Ni foam OER water electrolysis |
| url | https://www.mdpi.com/1420-3049/30/1/177 |
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