Metal-Organic Frameworks with Sulfhydryl Coordination for Efficient Electrocatalytic Oxygen Evolution Reaction

被引:0
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作者
Zheng, Weiqiong [1 ]
Liu, Xikui [1 ]
Li, Shuang [1 ]
Cheng, Chong [1 ]
机构
[1] State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu,610065, China
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D O I
10.16865/j.cnki.1000-7555.2024.0113
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学科分类号
摘要
Metal- organic frameworks (MOFs) materials have been explored as effective electrocatalysts for oxygen evolution reaction (OER). However, their structural instability at high current densities has hindered their large-scale industrial application. Herein, S-coordinated bimetallic MOFs (FeNi-DMBDC) were synthesized by the thiol- functionalized 2,5- dimercaptoterephthalic acid (H4DMBD) with FeNi metal ion coordination. Benefit from the unique Fe- S and Ni- S coordination structures, the FeNi- DSBDC exhibits high activity and good stability in alkaline OER catalysis, which requires a low overpotential of only 274 mV to reach the current density of 100 mA/ cm2. Meanwhile, when FeNi- DSBDC was loaded on a conductive carrier carbon cloth (CC), it can achieve amperometry current densities and operate stably for more than 200 h at the current densities of 50 mA/cm2 and 100 mA/cm2. This study not only broadened the potential of MOFs materials for efficient and stable anodic catalysis, but also provided new insights into the role of utilizing molecular design and ligand modulation strategies in electrocatalyst design. © 2024 Sichuan University. All rights reserved.
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页码:106 / 114
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