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Qi S, Zhu K, Xu T, Zhang H, Guo X, Wang J, Zhang F, Zong X. Water-Stable High-Entropy Metal-Organic Framework Nanosheets for Photocatalytic Hydrogen Production. Adv Mater 2024:e2403328. [PMID: 38586929 DOI: 10.1002/adma.202403328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Indexed: 04/09/2024]
Abstract
Metal-organic frameworks (MOFs) have emerged as promising platforms for photocatalytic hydrogen evolution reaction (HER) due to their fascinating physiochemical properties. Rationally engineering the compositions and structures of MOFs can provide abundant opportunities for their optimization. In recent years, high-entropy materials (HEMs) have demonstrated great potential in the energy and environment fields. However, there is still no report on the development of high-entropy MOFs (HE-MOFs) for photocatalytic HER in aqueous solution. Herein, the authors report the synthesis of a novel p-type HE-MOFs single crystal (HE-MOF-SC) and the corresponding HE-MOFs nanosheets (HE-MOF-NS) capable of realizing visible-light-driven photocatalytic HER. Both HE-MOF-SC and HE-MOF-NS exhibit higher photocatalytic HER activity than all the single-metal MOFs, which are supposed to be ascribed to the interplay between the different metal nodes in the HE-MOFs that enables more efficient charge transfer. Moreover, impressively, the HE-MOF-NS demonstrates much higher photocatalytic activity than the HE-MOF-SC due to its thin thickness and enhanced surface area. At optimum conditions, the rate of H2 evolution on the HE-MOF-NS is ≈13.24 mmol h-1 g-1, which is among the highest values reported for water-stable MOF photocatalysts. This work highlights the importance of developing advanced high-entropy materials toward enhanced photocatalysis.
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Affiliation(s)
- Shengliang Qi
- Marine Engineering College, Dalian Maritime University, Linghai Road 1, Dalian, 116026, China
| | - Kaixin Zhu
- Marine Engineering College, Dalian Maritime University, Linghai Road 1, Dalian, 116026, China
| | - Ting Xu
- Marine Engineering College, Dalian Maritime University, Linghai Road 1, Dalian, 116026, China
| | - Hefeng Zhang
- Marine Engineering College, Dalian Maritime University, Linghai Road 1, Dalian, 116026, China
| | - Xiangyang Guo
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, The Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM), Dalian National Laboratory for Clean Energy, Chinese Academy of Sciences, Dalian, 116023, China
| | - Junhui Wang
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Fuxiang Zhang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, The Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM), Dalian National Laboratory for Clean Energy, Chinese Academy of Sciences, Dalian, 116023, China
| | - Xu Zong
- Marine Engineering College, Dalian Maritime University, Linghai Road 1, Dalian, 116026, China
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