Corrosion-resistant cobalt phosphide electrocatalysts for salinity tolerance hydrogen evolution
Abstract Seawater electrolysis is a viable method for producing hydrogen on a large scale and low-cost. However, the catalyst activity during the seawater splitting process will dramatically degrade as salt concentrations increasing. Herein, CoP is discovered that could reject chloride ions far from...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-11-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-023-43459-w |
| _version_ | 1797388190509694976 |
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| author | Xinwu Xu Yang Lu Junqin Shi Xiaoyu Hao Zelin Ma Ke Yang Tianyi Zhang Chan Li Dina Zhang Xiaolei Huang Yibo He |
| author_facet | Xinwu Xu Yang Lu Junqin Shi Xiaoyu Hao Zelin Ma Ke Yang Tianyi Zhang Chan Li Dina Zhang Xiaolei Huang Yibo He |
| author_sort | Xinwu Xu |
| collection | DOAJ |
| description | Abstract Seawater electrolysis is a viable method for producing hydrogen on a large scale and low-cost. However, the catalyst activity during the seawater splitting process will dramatically degrade as salt concentrations increasing. Herein, CoP is discovered that could reject chloride ions far from catalyst in electrolyte based on molecular dynamic simulation. Thus, a binder-free electrode is designed and constructed by in-situ growth of homogeneous CoP on rGO nanosheets wrapped around the surface of Ti fiber felt for seawater splitting. As expected, the as-obtained CoP/rGO@Ti electrode exhibits good catalytic activity and stability in alkaline electrolyte. Especially, benefitting from the highly effective repulsive Cl− intrinsic characteristic of CoP, the catalyst maintains good catalytic performance with saturated salt concentration, and the overpotential increasing is less than 28 mV at 10 mA cm−2 from 0 M to saturated NaCl in electrolyte. Furthermore, the catalyst for seawater splitting performs superior corrosion-resistance with a low solubility of 0.04%. This work sheds fresh light into the development of efficient HER catalysts for salinity tolerance hydrogen evolution. |
| first_indexed | 2024-03-08T22:37:11Z |
| format | Article |
| id | doaj.art-359414124ee94d38bb22812fee81761a |
| institution | Directory Open Access Journal |
| issn | 2041-1723 |
| language | English |
| last_indexed | 2024-03-08T22:37:11Z |
| publishDate | 2023-11-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj.art-359414124ee94d38bb22812fee81761a2023-12-17T12:23:43ZengNature PortfolioNature Communications2041-17232023-11-011411910.1038/s41467-023-43459-wCorrosion-resistant cobalt phosphide electrocatalysts for salinity tolerance hydrogen evolutionXinwu Xu0Yang Lu1Junqin Shi2Xiaoyu Hao3Zelin Ma4Ke Yang5Tianyi Zhang6Chan Li7Dina Zhang8Xiaolei Huang9Yibo He10State Key Laboratory of Solidification Processing, Center of Advanced Lubrication and Seal Materials, School of Materials Science and Engineering, Northwestern Polytechnical UniversityState Key Laboratory of Solidification Processing, Center of Advanced Lubrication and Seal Materials, School of Materials Science and Engineering, Northwestern Polytechnical UniversityState Key Laboratory of Solidification Processing, Center of Advanced Lubrication and Seal Materials, School of Materials Science and Engineering, Northwestern Polytechnical UniversityState Key Laboratory of Solidification Processing, Center of Advanced Lubrication and Seal Materials, School of Materials Science and Engineering, Northwestern Polytechnical UniversityState Key Laboratory of Solidification Processing, Center of Advanced Lubrication and Seal Materials, School of Materials Science and Engineering, Northwestern Polytechnical UniversityState Key Laboratory of Solidification Processing, Center of Advanced Lubrication and Seal Materials, School of Materials Science and Engineering, Northwestern Polytechnical UniversityState Key Laboratory of Solidification Processing, Center of Advanced Lubrication and Seal Materials, School of Materials Science and Engineering, Northwestern Polytechnical UniversityState Key Laboratory of Solidification Processing, Center of Advanced Lubrication and Seal Materials, School of Materials Science and Engineering, Northwestern Polytechnical UniversityState Key Laboratory of Solidification Processing, Center of Advanced Lubrication and Seal Materials, School of Materials Science and Engineering, Northwestern Polytechnical UniversityInstitute of Material and Chemistry, Ganjiang Innovation Academy, Chinese Academy of SciencesState Key Laboratory of Solidification Processing, Center of Advanced Lubrication and Seal Materials, School of Materials Science and Engineering, Northwestern Polytechnical UniversityAbstract Seawater electrolysis is a viable method for producing hydrogen on a large scale and low-cost. However, the catalyst activity during the seawater splitting process will dramatically degrade as salt concentrations increasing. Herein, CoP is discovered that could reject chloride ions far from catalyst in electrolyte based on molecular dynamic simulation. Thus, a binder-free electrode is designed and constructed by in-situ growth of homogeneous CoP on rGO nanosheets wrapped around the surface of Ti fiber felt for seawater splitting. As expected, the as-obtained CoP/rGO@Ti electrode exhibits good catalytic activity and stability in alkaline electrolyte. Especially, benefitting from the highly effective repulsive Cl− intrinsic characteristic of CoP, the catalyst maintains good catalytic performance with saturated salt concentration, and the overpotential increasing is less than 28 mV at 10 mA cm−2 from 0 M to saturated NaCl in electrolyte. Furthermore, the catalyst for seawater splitting performs superior corrosion-resistance with a low solubility of 0.04%. This work sheds fresh light into the development of efficient HER catalysts for salinity tolerance hydrogen evolution.https://doi.org/10.1038/s41467-023-43459-w |
| spellingShingle | Xinwu Xu Yang Lu Junqin Shi Xiaoyu Hao Zelin Ma Ke Yang Tianyi Zhang Chan Li Dina Zhang Xiaolei Huang Yibo He Corrosion-resistant cobalt phosphide electrocatalysts for salinity tolerance hydrogen evolution Nature Communications |
| title | Corrosion-resistant cobalt phosphide electrocatalysts for salinity tolerance hydrogen evolution |
| title_full | Corrosion-resistant cobalt phosphide electrocatalysts for salinity tolerance hydrogen evolution |
| title_fullStr | Corrosion-resistant cobalt phosphide electrocatalysts for salinity tolerance hydrogen evolution |
| title_full_unstemmed | Corrosion-resistant cobalt phosphide electrocatalysts for salinity tolerance hydrogen evolution |
| title_short | Corrosion-resistant cobalt phosphide electrocatalysts for salinity tolerance hydrogen evolution |
| title_sort | corrosion resistant cobalt phosphide electrocatalysts for salinity tolerance hydrogen evolution |
| url | https://doi.org/10.1038/s41467-023-43459-w |
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