Construction of Zn-doped RuO2 nanowires for efficient and stable water oxidation in acidic media
Abstract Oxygen evolution reaction catalysts capable of working efficiently in acidic media are highly demanded for the commercialization of proton exchange membrane water electrolysis. Herein, we report a Zn-doped RuO2 nanowire array electrocatalyst with outstanding catalytic performance for the ox...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2023-05-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-023-38213-1 |
| _version_ | 1797832059610202112 |
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| author | Dafeng Zhang Mengnan Li Xue Yong Haoqiang Song Geoffrey I. N. Waterhouse Yunfei Yi Bingjie Xue Dongliang Zhang Baozhong Liu Siyu Lu |
| author_facet | Dafeng Zhang Mengnan Li Xue Yong Haoqiang Song Geoffrey I. N. Waterhouse Yunfei Yi Bingjie Xue Dongliang Zhang Baozhong Liu Siyu Lu |
| author_sort | Dafeng Zhang |
| collection | DOAJ |
| description | Abstract Oxygen evolution reaction catalysts capable of working efficiently in acidic media are highly demanded for the commercialization of proton exchange membrane water electrolysis. Herein, we report a Zn-doped RuO2 nanowire array electrocatalyst with outstanding catalytic performance for the oxygen evolution reaction under acidic conditions. Overpotentials as low as 173, 304, and 373 mV are achieved at 10, 500, and 1000 mA cm−2, respectively, with robust stability reaching to 1000 h at 10 mA cm−2. Experimental and theoretical investigations establish a clear synergistic effect of Zn dopants and oxygen vacancies on regulating the binding configurations of oxygenated adsorbates on the active centers, which then enables an alternative Ru−Zn dual-site oxide path of the reaction. Due to the change of reaction pathways, the energy barrier of rate-determining step is reduced, and the over-oxidation of Ru active sites is alleviated. As a result, the catalytic activity and stability are significantly enhanced. |
| first_indexed | 2024-04-09T14:01:42Z |
| format | Article |
| id | doaj.art-f1ca12db1d0d4fc8b1cd25db97485053 |
| institution | Directory Open Access Journal |
| issn | 2041-1723 |
| language | English |
| last_indexed | 2024-04-09T14:01:42Z |
| publishDate | 2023-05-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj.art-f1ca12db1d0d4fc8b1cd25db974850532023-05-07T11:17:06ZengNature PortfolioNature Communications2041-17232023-05-0114111310.1038/s41467-023-38213-1Construction of Zn-doped RuO2 nanowires for efficient and stable water oxidation in acidic mediaDafeng Zhang0Mengnan Li1Xue Yong2Haoqiang Song3Geoffrey I. N. Waterhouse4Yunfei Yi5Bingjie Xue6Dongliang Zhang7Baozhong Liu8Siyu Lu9State Collaborative Innovation Center of Coal Work Safety and Clean-efficiency Utilization, Henan Key Laboratory of Coal Green Conversion, College of Chemistry and Chemical Engineering, Henan Polytechnic UniversityState Collaborative Innovation Center of Coal Work Safety and Clean-efficiency Utilization, Henan Key Laboratory of Coal Green Conversion, College of Chemistry and Chemical Engineering, Henan Polytechnic UniversityGreen Catalysis Center, and College of Chemistry, Zhengzhou UniversityGreen Catalysis Center, and College of Chemistry, Zhengzhou UniversitySchool of Chemical Sciences, The University of AucklandState Collaborative Innovation Center of Coal Work Safety and Clean-efficiency Utilization, Henan Key Laboratory of Coal Green Conversion, College of Chemistry and Chemical Engineering, Henan Polytechnic UniversityState Collaborative Innovation Center of Coal Work Safety and Clean-efficiency Utilization, Henan Key Laboratory of Coal Green Conversion, College of Chemistry and Chemical Engineering, Henan Polytechnic UniversityState Collaborative Innovation Center of Coal Work Safety and Clean-efficiency Utilization, Henan Key Laboratory of Coal Green Conversion, College of Chemistry and Chemical Engineering, Henan Polytechnic UniversityState Collaborative Innovation Center of Coal Work Safety and Clean-efficiency Utilization, Henan Key Laboratory of Coal Green Conversion, College of Chemistry and Chemical Engineering, Henan Polytechnic UniversityGreen Catalysis Center, and College of Chemistry, Zhengzhou UniversityAbstract Oxygen evolution reaction catalysts capable of working efficiently in acidic media are highly demanded for the commercialization of proton exchange membrane water electrolysis. Herein, we report a Zn-doped RuO2 nanowire array electrocatalyst with outstanding catalytic performance for the oxygen evolution reaction under acidic conditions. Overpotentials as low as 173, 304, and 373 mV are achieved at 10, 500, and 1000 mA cm−2, respectively, with robust stability reaching to 1000 h at 10 mA cm−2. Experimental and theoretical investigations establish a clear synergistic effect of Zn dopants and oxygen vacancies on regulating the binding configurations of oxygenated adsorbates on the active centers, which then enables an alternative Ru−Zn dual-site oxide path of the reaction. Due to the change of reaction pathways, the energy barrier of rate-determining step is reduced, and the over-oxidation of Ru active sites is alleviated. As a result, the catalytic activity and stability are significantly enhanced.https://doi.org/10.1038/s41467-023-38213-1 |
| spellingShingle | Dafeng Zhang Mengnan Li Xue Yong Haoqiang Song Geoffrey I. N. Waterhouse Yunfei Yi Bingjie Xue Dongliang Zhang Baozhong Liu Siyu Lu Construction of Zn-doped RuO2 nanowires for efficient and stable water oxidation in acidic media Nature Communications |
| title | Construction of Zn-doped RuO2 nanowires for efficient and stable water oxidation in acidic media |
| title_full | Construction of Zn-doped RuO2 nanowires for efficient and stable water oxidation in acidic media |
| title_fullStr | Construction of Zn-doped RuO2 nanowires for efficient and stable water oxidation in acidic media |
| title_full_unstemmed | Construction of Zn-doped RuO2 nanowires for efficient and stable water oxidation in acidic media |
| title_short | Construction of Zn-doped RuO2 nanowires for efficient and stable water oxidation in acidic media |
| title_sort | construction of zn doped ruo2 nanowires for efficient and stable water oxidation in acidic media |
| url | https://doi.org/10.1038/s41467-023-38213-1 |
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