Synthesis of NiMoO<sub>4</sub>/NiMo@NiS Nanorods for Efficient Hydrogen Evolution Reactions in Electrocatalysts
As traditional energy structures transition to new sources, hydrogen is receiving significant research attention owing to its potential as a clean energy source. The most significant problem with electrochemical hydrogen evolution is the need for highly efficient catalysts to drive the overpotential...
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MDPI AG
2023-06-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/13/12/1871 |
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| author | Sen Hu Cuili Xiang Yongjin Zou Fen Xu Lixian Sun |
| author_facet | Sen Hu Cuili Xiang Yongjin Zou Fen Xu Lixian Sun |
| author_sort | Sen Hu |
| collection | DOAJ |
| description | As traditional energy structures transition to new sources, hydrogen is receiving significant research attention owing to its potential as a clean energy source. The most significant problem with electrochemical hydrogen evolution is the need for highly efficient catalysts to drive the overpotential required to generate hydrogen gas by electrolyzing water. Experiments have shown that the addition of appropriate materials can reduce the energy required for hydrogen production by electrolysis of water and enable it to play a greater catalytic role in these evolution reactions. Therefore, more complex material compositions are required to obtain these high-performance materials. This study investigates the preparation of hydrogen production catalysts for cathodes. First, rod-like NiMoO<sub>4</sub>/NiMo is grown on NF (Nickel Foam) using a hydrothermal method. This is used as a core framework, and it provides a higher specific surface area and electron transfer channels. Next, spherical NiS is generated on the NF/NiMo<sub>4</sub>/NiMo, thus ultimately achieving efficient electrochemical hydrogen evolution. The NF/NiMo<sub>4</sub>/NiMo@NiS material exhibits a remarkably low overpotential of only 36 mV for the hydrogen evolution reaction (HER) at a current density of 10 mA·cm<sup>−2</sup> in a potassium hydroxide solution, indicating its potential use in energy-related applications for HER processes. |
| first_indexed | 2024-03-11T02:05:45Z |
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| id | doaj.art-e49750fe28fb4e5891263e5e86f9d3fb |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-11T02:05:45Z |
| publishDate | 2023-06-01 |
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| series | Nanomaterials |
| spelling | doaj.art-e49750fe28fb4e5891263e5e86f9d3fb2023-11-18T11:54:03ZengMDPI AGNanomaterials2079-49912023-06-011312187110.3390/nano13121871Synthesis of NiMoO<sub>4</sub>/NiMo@NiS Nanorods for Efficient Hydrogen Evolution Reactions in ElectrocatalystsSen Hu0Cuili Xiang1Yongjin Zou2Fen Xu3Lixian Sun4School of Material Science & Engineering, Guangxi Key Laboratory of Information Materials and Guangxi Collaborative Innovation Center of Structure and Property for New Energy and Materials, Guilin University of Electronic Technology, Guilin 541004, ChinaSchool of Mechanical & Electrical Engineering, Guilin University of Electronic Technology, Guilin 541004, ChinaSchool of Material Science & Engineering, Guangxi Key Laboratory of Information Materials and Guangxi Collaborative Innovation Center of Structure and Property for New Energy and Materials, Guilin University of Electronic Technology, Guilin 541004, ChinaSchool of Mechanical & Electrical Engineering, Guilin University of Electronic Technology, Guilin 541004, ChinaSchool of Material Science & Engineering, Guangxi Key Laboratory of Information Materials and Guangxi Collaborative Innovation Center of Structure and Property for New Energy and Materials, Guilin University of Electronic Technology, Guilin 541004, ChinaAs traditional energy structures transition to new sources, hydrogen is receiving significant research attention owing to its potential as a clean energy source. The most significant problem with electrochemical hydrogen evolution is the need for highly efficient catalysts to drive the overpotential required to generate hydrogen gas by electrolyzing water. Experiments have shown that the addition of appropriate materials can reduce the energy required for hydrogen production by electrolysis of water and enable it to play a greater catalytic role in these evolution reactions. Therefore, more complex material compositions are required to obtain these high-performance materials. This study investigates the preparation of hydrogen production catalysts for cathodes. First, rod-like NiMoO<sub>4</sub>/NiMo is grown on NF (Nickel Foam) using a hydrothermal method. This is used as a core framework, and it provides a higher specific surface area and electron transfer channels. Next, spherical NiS is generated on the NF/NiMo<sub>4</sub>/NiMo, thus ultimately achieving efficient electrochemical hydrogen evolution. The NF/NiMo<sub>4</sub>/NiMo@NiS material exhibits a remarkably low overpotential of only 36 mV for the hydrogen evolution reaction (HER) at a current density of 10 mA·cm<sup>−2</sup> in a potassium hydroxide solution, indicating its potential use in energy-related applications for HER processes.https://www.mdpi.com/2079-4991/13/12/1871overpotentialcatalysiselectrolyzing waterhigh-performance materials |
| spellingShingle | Sen Hu Cuili Xiang Yongjin Zou Fen Xu Lixian Sun Synthesis of NiMoO<sub>4</sub>/NiMo@NiS Nanorods for Efficient Hydrogen Evolution Reactions in Electrocatalysts Nanomaterials overpotential catalysis electrolyzing water high-performance materials |
| title | Synthesis of NiMoO<sub>4</sub>/NiMo@NiS Nanorods for Efficient Hydrogen Evolution Reactions in Electrocatalysts |
| title_full | Synthesis of NiMoO<sub>4</sub>/NiMo@NiS Nanorods for Efficient Hydrogen Evolution Reactions in Electrocatalysts |
| title_fullStr | Synthesis of NiMoO<sub>4</sub>/NiMo@NiS Nanorods for Efficient Hydrogen Evolution Reactions in Electrocatalysts |
| title_full_unstemmed | Synthesis of NiMoO<sub>4</sub>/NiMo@NiS Nanorods for Efficient Hydrogen Evolution Reactions in Electrocatalysts |
| title_short | Synthesis of NiMoO<sub>4</sub>/NiMo@NiS Nanorods for Efficient Hydrogen Evolution Reactions in Electrocatalysts |
| title_sort | synthesis of nimoo sub 4 sub nimo nis nanorods for efficient hydrogen evolution reactions in electrocatalysts |
| topic | overpotential catalysis electrolyzing water high-performance materials |
| url | https://www.mdpi.com/2079-4991/13/12/1871 |
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