MOF membrane boosts electrocatalytic nitrogen reduction on perovskite oxides
The electrochemical nitrogen reduction reaction (NRR) under ambient conditions presents a promising approach for the eco-friendly and sustainable synthesis of ammonia, with a continuous emergence of potential electrocatalysts. However, the low solubility and limited diffusion of N2 significantly hin...
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KeAi Communications Co., Ltd.
2025-07-01
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| Series: | Green Energy & Environment |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S246802572500038X |
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| author | Tan Zhang Qi Wang Yuhan Sun Jinping Li Guang Liu |
| author_facet | Tan Zhang Qi Wang Yuhan Sun Jinping Li Guang Liu |
| author_sort | Tan Zhang |
| collection | DOAJ |
| description | The electrochemical nitrogen reduction reaction (NRR) under ambient conditions presents a promising approach for the eco-friendly and sustainable synthesis of ammonia, with a continuous emergence of potential electrocatalysts. However, the low solubility and limited diffusion of N2 significantly hinder the achievement of satisfactory performance. In this context, we report an effective strategy to enhance NRR activity by introducing a metal–organic framework (MOF) membrane, specifically MIL-53(Al), onto a perovskite oxide (LiNbO3), denoted as LN@MIL-X (X = 0.2, 0.4 and 0.6). The MIL-53(Al) membrane selectively recognizes and concentrates N2 at the catalyst interface while simultaneously repelling water molecules, thereby inhibiting the hydrogen evolution reaction (HER). This ultrathin nanostructure significantly improves the NRR performance of LN@MIL-X compared to pristine LiNbO3. Notably, LN@MIL-0.4 exhibits a maximum NH3 yield of 45.25 μg h−1 mgcat.−1 with an impressive Faradaic efficiency (FE) of 86.41% at −0.45 V versus RHE in 0.1 mol L−1 Na2SO4. This work provides a universal strategy for the design and synthesis of perovskite oxide electrocatalysts, facilitating high-efficiency ammonia synthesis. |
| format | Article |
| id | doaj-art-73ac84ea673e41b39364f8798e1d746b |
| institution | DOAJ |
| issn | 2468-0257 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Green Energy & Environment |
| spelling | doaj-art-73ac84ea673e41b39364f8798e1d746b2025-08-20T02:45:42ZengKeAi Communications Co., Ltd.Green Energy & Environment2468-02572025-07-011071543155010.1016/j.gee.2025.02.002MOF membrane boosts electrocatalytic nitrogen reduction on perovskite oxidesTan Zhang0Qi Wang1Yuhan Sun2Jinping Li3Guang Liu4College of Chemistry and Chemical Engineering, Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization, Taiyuan University of Technology, Taiyuan, 030024, China; Shanxi Research Institute of Huairou Laboratory, Taiyuan, 030031, ChinaCollege of Chemistry and Chemical Engineering, Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization, Taiyuan University of Technology, Taiyuan, 030024, ChinaCollege of Chemistry and Chemical Engineering, Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization, Taiyuan University of Technology, Taiyuan, 030024, China; Shanxi Research Institute of Huairou Laboratory, Taiyuan, 030031, ChinaCollege of Chemistry and Chemical Engineering, Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization, Taiyuan University of Technology, Taiyuan, 030024, China; Shanxi Research Institute of Huairou Laboratory, Taiyuan, 030031, China; Corresponding authors.College of Chemistry and Chemical Engineering, Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization, Taiyuan University of Technology, Taiyuan, 030024, China; Corresponding authors.The electrochemical nitrogen reduction reaction (NRR) under ambient conditions presents a promising approach for the eco-friendly and sustainable synthesis of ammonia, with a continuous emergence of potential electrocatalysts. However, the low solubility and limited diffusion of N2 significantly hinder the achievement of satisfactory performance. In this context, we report an effective strategy to enhance NRR activity by introducing a metal–organic framework (MOF) membrane, specifically MIL-53(Al), onto a perovskite oxide (LiNbO3), denoted as LN@MIL-X (X = 0.2, 0.4 and 0.6). The MIL-53(Al) membrane selectively recognizes and concentrates N2 at the catalyst interface while simultaneously repelling water molecules, thereby inhibiting the hydrogen evolution reaction (HER). This ultrathin nanostructure significantly improves the NRR performance of LN@MIL-X compared to pristine LiNbO3. Notably, LN@MIL-0.4 exhibits a maximum NH3 yield of 45.25 μg h−1 mgcat.−1 with an impressive Faradaic efficiency (FE) of 86.41% at −0.45 V versus RHE in 0.1 mol L−1 Na2SO4. This work provides a universal strategy for the design and synthesis of perovskite oxide electrocatalysts, facilitating high-efficiency ammonia synthesis.http://www.sciencedirect.com/science/article/pii/S246802572500038XAmmonia synthesisNitrogen reduciton reactionMOF membranePerovskite oxideHydrophobic tunnel |
| spellingShingle | Tan Zhang Qi Wang Yuhan Sun Jinping Li Guang Liu MOF membrane boosts electrocatalytic nitrogen reduction on perovskite oxides Green Energy & Environment Ammonia synthesis Nitrogen reduciton reaction MOF membrane Perovskite oxide Hydrophobic tunnel |
| title | MOF membrane boosts electrocatalytic nitrogen reduction on perovskite oxides |
| title_full | MOF membrane boosts electrocatalytic nitrogen reduction on perovskite oxides |
| title_fullStr | MOF membrane boosts electrocatalytic nitrogen reduction on perovskite oxides |
| title_full_unstemmed | MOF membrane boosts electrocatalytic nitrogen reduction on perovskite oxides |
| title_short | MOF membrane boosts electrocatalytic nitrogen reduction on perovskite oxides |
| title_sort | mof membrane boosts electrocatalytic nitrogen reduction on perovskite oxides |
| topic | Ammonia synthesis Nitrogen reduciton reaction MOF membrane Perovskite oxide Hydrophobic tunnel |
| url | http://www.sciencedirect.com/science/article/pii/S246802572500038X |
| work_keys_str_mv | AT tanzhang mofmembraneboostselectrocatalyticnitrogenreductiononperovskiteoxides AT qiwang mofmembraneboostselectrocatalyticnitrogenreductiononperovskiteoxides AT yuhansun mofmembraneboostselectrocatalyticnitrogenreductiononperovskiteoxides AT jinpingli mofmembraneboostselectrocatalyticnitrogenreductiononperovskiteoxides AT guangliu mofmembraneboostselectrocatalyticnitrogenreductiononperovskiteoxides |