Tuning the electronic structure of a metal–organic framework for an efficient oxygen evolution reaction by introducing minor atomically dispersed ruthenium
Abstract The establishment of efficient oxygen evolution electrocatalysts is of great value but also challenging. Herein, a durable metal–organic framework (MOF) with minor atomically dispersed ruthenium and an optimized electronic structure is constructed as an efficient electrocatalyst. Significan...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2023-02-01
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| Series: | Carbon Energy |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/cey2.265 |
| _version_ | 1797903968509100032 |
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| author | Yuwen Li Yuhang Wu Tongtong Li Mengting Lu Yi Chen Yuanjing Cui Junkuo Gao Guodong Qian |
| author_facet | Yuwen Li Yuhang Wu Tongtong Li Mengting Lu Yi Chen Yuanjing Cui Junkuo Gao Guodong Qian |
| author_sort | Yuwen Li |
| collection | DOAJ |
| description | Abstract The establishment of efficient oxygen evolution electrocatalysts is of great value but also challenging. Herein, a durable metal–organic framework (MOF) with minor atomically dispersed ruthenium and an optimized electronic structure is constructed as an efficient electrocatalyst. Significantly, the obtained NiRu0.08‐MOF with doping Ru only needs an overpotential of 187 mV at 10 mA cm−2 with a Tafel slop of 40 mV dec−1 in 0.1 M KOH for the oxygen evolution reaction, and can work continuously for more than 300 h. Ultrahigh Ru mass activity is achieved, reaching 56.7 A g−1Ru at an overpotential of 200 mV, which is 36 times higher than that of commercial RuO2. X‐ray adsorption spectroscopy and density function theory calculations reveal that atomically dispersed ruthenium on metal sites in MOFs is expected to optimize the electronic structure of nickel sites, thus improving the conductivity of the catalyst and optimizing the adsorption energy of intermediates, resulting in significant optimization of electrocatalytic performance. This study could provide a new avenue for the design of efficient and stable MOF electrocatalysts. |
| first_indexed | 2024-04-10T09:41:16Z |
| format | Article |
| id | doaj.art-cd6f383bede64a32917de2e5e7859b72 |
| institution | Directory Open Access Journal |
| issn | 2637-9368 |
| language | English |
| last_indexed | 2024-04-10T09:41:16Z |
| publishDate | 2023-02-01 |
| publisher | Wiley |
| record_format | Article |
| series | Carbon Energy |
| spelling | doaj.art-cd6f383bede64a32917de2e5e7859b722023-02-17T11:14:35ZengWileyCarbon Energy2637-93682023-02-0152n/an/a10.1002/cey2.265Tuning the electronic structure of a metal–organic framework for an efficient oxygen evolution reaction by introducing minor atomically dispersed rutheniumYuwen Li0Yuhang Wu1Tongtong Li2Mengting Lu3Yi Chen4Yuanjing Cui5Junkuo Gao6Guodong Qian7State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications, School of Materials Science and Engineering Zhejiang University Hangzhou Zhejiang ChinaInstitute of Functional Porous Materials, School of Materials Science and Engineering Zhejiang Sci‐Tech University Hangzhou Zhejiang ChinaInstitute of Functional Porous Materials, School of Materials Science and Engineering Zhejiang Sci‐Tech University Hangzhou Zhejiang ChinaState Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications, School of Materials Science and Engineering Zhejiang University Hangzhou Zhejiang ChinaState Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications, School of Materials Science and Engineering Zhejiang University Hangzhou Zhejiang ChinaState Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications, School of Materials Science and Engineering Zhejiang University Hangzhou Zhejiang ChinaInstitute of Functional Porous Materials, School of Materials Science and Engineering Zhejiang Sci‐Tech University Hangzhou Zhejiang ChinaState Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications, School of Materials Science and Engineering Zhejiang University Hangzhou Zhejiang ChinaAbstract The establishment of efficient oxygen evolution electrocatalysts is of great value but also challenging. Herein, a durable metal–organic framework (MOF) with minor atomically dispersed ruthenium and an optimized electronic structure is constructed as an efficient electrocatalyst. Significantly, the obtained NiRu0.08‐MOF with doping Ru only needs an overpotential of 187 mV at 10 mA cm−2 with a Tafel slop of 40 mV dec−1 in 0.1 M KOH for the oxygen evolution reaction, and can work continuously for more than 300 h. Ultrahigh Ru mass activity is achieved, reaching 56.7 A g−1Ru at an overpotential of 200 mV, which is 36 times higher than that of commercial RuO2. X‐ray adsorption spectroscopy and density function theory calculations reveal that atomically dispersed ruthenium on metal sites in MOFs is expected to optimize the electronic structure of nickel sites, thus improving the conductivity of the catalyst and optimizing the adsorption energy of intermediates, resulting in significant optimization of electrocatalytic performance. This study could provide a new avenue for the design of efficient and stable MOF electrocatalysts.https://doi.org/10.1002/cey2.265electrocatalysiselectronic structuremetal–organic frameworkoxygen evolution reaction |
| spellingShingle | Yuwen Li Yuhang Wu Tongtong Li Mengting Lu Yi Chen Yuanjing Cui Junkuo Gao Guodong Qian Tuning the electronic structure of a metal–organic framework for an efficient oxygen evolution reaction by introducing minor atomically dispersed ruthenium Carbon Energy electrocatalysis electronic structure metal–organic framework oxygen evolution reaction |
| title | Tuning the electronic structure of a metal–organic framework for an efficient oxygen evolution reaction by introducing minor atomically dispersed ruthenium |
| title_full | Tuning the electronic structure of a metal–organic framework for an efficient oxygen evolution reaction by introducing minor atomically dispersed ruthenium |
| title_fullStr | Tuning the electronic structure of a metal–organic framework for an efficient oxygen evolution reaction by introducing minor atomically dispersed ruthenium |
| title_full_unstemmed | Tuning the electronic structure of a metal–organic framework for an efficient oxygen evolution reaction by introducing minor atomically dispersed ruthenium |
| title_short | Tuning the electronic structure of a metal–organic framework for an efficient oxygen evolution reaction by introducing minor atomically dispersed ruthenium |
| title_sort | tuning the electronic structure of a metal organic framework for an efficient oxygen evolution reaction by introducing minor atomically dispersed ruthenium |
| topic | electrocatalysis electronic structure metal–organic framework oxygen evolution reaction |
| url | https://doi.org/10.1002/cey2.265 |
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