Metal–Organic Framework Integrating Ionic Framework and Bimetallic Coupling Effect for Highly Efficient Oxygen Evolution Reaction
Abstract Metal–organic frameworks (MOFs) are recognized as promising electrocatalysts for the oxygen evolution reaction (OER) because of their permanent porosity and rich architectural diversity; however, ionic MOFs enabling fast ions exchange during OER are rarely explored. Here, an ionic MOF (Ni‐b...
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| Format: | Article |
| Language: | English |
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Wiley
2022-10-01
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| Series: | Advanced Science |
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| Online Access: | https://doi.org/10.1002/advs.202203712 |
| _version_ | 1798027554327625728 |
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| author | Shulin Li Tienan Wang Dai Tang Yuting Yang Yuyang Tian Fengchao Cui Jifeng Sun Xiaofei Jing David S. Sholl Guangshan Zhu |
| author_facet | Shulin Li Tienan Wang Dai Tang Yuting Yang Yuyang Tian Fengchao Cui Jifeng Sun Xiaofei Jing David S. Sholl Guangshan Zhu |
| author_sort | Shulin Li |
| collection | DOAJ |
| description | Abstract Metal–organic frameworks (MOFs) are recognized as promising electrocatalysts for the oxygen evolution reaction (OER) because of their permanent porosity and rich architectural diversity; however, ionic MOFs enabling fast ions exchange during OER are rarely explored. Here, an ionic MOF (Ni‐btz) constructed with an azolate ligand is selected, and continuous 3D bimetallic MOF (NiFe‐btz) films deriving from high‐degree intergrowth of microsized MOFs particles are fabricated. The as‐prepared NiFe‐btz/NF‐OH electrode exhibits excellent OER performance with a low overpotential of 239 mV at 10 mA cm−2 under alkaline condition. The OER charge transfer process and bimetallic coupling effect in ionic NiFe‐btz are probed by density functional theory calculations and confirmed via X‐ray photoelectron spectroscopy and in situ Raman measurements. The partial density of states of NiFe‐btz indicates that the main contribution for electron density around the Fermi level is from Cl ions clarifying the profitable impact of ionic MOF framework. This work systematically demonstrates the relationship of electronic structure and OER activity in ionic, bimetallic MOFs and expands the scope of 3D MOF films for efficient OER. |
| first_indexed | 2024-04-11T18:53:32Z |
| format | Article |
| id | doaj.art-ccfca6d01e104b349ef357948514d77c |
| institution | Directory Open Access Journal |
| issn | 2198-3844 |
| language | English |
| last_indexed | 2024-04-11T18:53:32Z |
| publishDate | 2022-10-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj.art-ccfca6d01e104b349ef357948514d77c2022-12-22T04:08:17ZengWileyAdvanced Science2198-38442022-10-01930n/an/a10.1002/advs.202203712Metal–Organic Framework Integrating Ionic Framework and Bimetallic Coupling Effect for Highly Efficient Oxygen Evolution ReactionShulin Li0Tienan Wang1Dai Tang2Yuting Yang3Yuyang Tian4Fengchao Cui5Jifeng Sun6Xiaofei Jing7David S. Sholl8Guangshan Zhu9Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education Northeast Normal University Changchun 130024 ChinaKey Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education Northeast Normal University Changchun 130024 ChinaSchool of Chemical and Biomolecular Engineering Georgia Institute of Technology Atlanta GA 30332 USAKey Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education Northeast Normal University Changchun 130024 ChinaKey Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education Northeast Normal University Changchun 130024 ChinaKey Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education Northeast Normal University Changchun 130024 ChinaSchool of Chemical and Biomolecular Engineering Georgia Institute of Technology Atlanta GA 30332 USAKey Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education Northeast Normal University Changchun 130024 ChinaOak Ridge National Laboratory Oak Ridge TN 37830 USAKey Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education Northeast Normal University Changchun 130024 ChinaAbstract Metal–organic frameworks (MOFs) are recognized as promising electrocatalysts for the oxygen evolution reaction (OER) because of their permanent porosity and rich architectural diversity; however, ionic MOFs enabling fast ions exchange during OER are rarely explored. Here, an ionic MOF (Ni‐btz) constructed with an azolate ligand is selected, and continuous 3D bimetallic MOF (NiFe‐btz) films deriving from high‐degree intergrowth of microsized MOFs particles are fabricated. The as‐prepared NiFe‐btz/NF‐OH electrode exhibits excellent OER performance with a low overpotential of 239 mV at 10 mA cm−2 under alkaline condition. The OER charge transfer process and bimetallic coupling effect in ionic NiFe‐btz are probed by density functional theory calculations and confirmed via X‐ray photoelectron spectroscopy and in situ Raman measurements. The partial density of states of NiFe‐btz indicates that the main contribution for electron density around the Fermi level is from Cl ions clarifying the profitable impact of ionic MOF framework. This work systematically demonstrates the relationship of electronic structure and OER activity in ionic, bimetallic MOFs and expands the scope of 3D MOF films for efficient OER.https://doi.org/10.1002/advs.202203712bimetallic coupling effectdensity functional theoryionic MOFsmetal–organic frameworks (MOFs)oxygen evolution reaction |
| spellingShingle | Shulin Li Tienan Wang Dai Tang Yuting Yang Yuyang Tian Fengchao Cui Jifeng Sun Xiaofei Jing David S. Sholl Guangshan Zhu Metal–Organic Framework Integrating Ionic Framework and Bimetallic Coupling Effect for Highly Efficient Oxygen Evolution Reaction Advanced Science bimetallic coupling effect density functional theory ionic MOFs metal–organic frameworks (MOFs) oxygen evolution reaction |
| title | Metal–Organic Framework Integrating Ionic Framework and Bimetallic Coupling Effect for Highly Efficient Oxygen Evolution Reaction |
| title_full | Metal–Organic Framework Integrating Ionic Framework and Bimetallic Coupling Effect for Highly Efficient Oxygen Evolution Reaction |
| title_fullStr | Metal–Organic Framework Integrating Ionic Framework and Bimetallic Coupling Effect for Highly Efficient Oxygen Evolution Reaction |
| title_full_unstemmed | Metal–Organic Framework Integrating Ionic Framework and Bimetallic Coupling Effect for Highly Efficient Oxygen Evolution Reaction |
| title_short | Metal–Organic Framework Integrating Ionic Framework and Bimetallic Coupling Effect for Highly Efficient Oxygen Evolution Reaction |
| title_sort | metal organic framework integrating ionic framework and bimetallic coupling effect for highly efficient oxygen evolution reaction |
| topic | bimetallic coupling effect density functional theory ionic MOFs metal–organic frameworks (MOFs) oxygen evolution reaction |
| url | https://doi.org/10.1002/advs.202203712 |
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