An ultralow iridium-incorporated Ni-Fe bimetallic-organic framework for efficient oxygen evolution reaction

The development of electrocatalysts is of vital importance to the OER. In this work, an optimized MOF electrode, Ir-NiFe-btz/NF, was synthesized by incorporating ultralow levels of Ir nanoparticles into an ionic bimetallic MOF. Under alkaline conditions, the prepared MOF electrode demonstrated outst...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2024-10, Vol.6 (81), p.11588-11591
Main Authors: Wang, Zixiong, Zhou, Zhaoxin, Zhang, Qi, Zhu, He, Zhu, Shiping
Format: Article
Language:English
Subjects:
Bimetals
Electrocatalysts
Electrodes
Iridium
Iron compounds
Metal-organic frameworks
Nickel compounds
Oxygen evolution reactions
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Summary:The development of electrocatalysts is of vital importance to the OER. In this work, an optimized MOF electrode, Ir-NiFe-btz/NF, was synthesized by incorporating ultralow levels of Ir nanoparticles into an ionic bimetallic MOF. Under alkaline conditions, the prepared MOF electrode demonstrated outstanding OER activity and stability with a low overpotential of 182 mV to reach 10 mA cm −2 and no obvious increase of overpotential in a chronovoltammetry test over 100 hours at 100 mA cm −2 . An iridium-incorporated ionic MOF was prepared and applied as a highly efficient and stable OER electrocatalyst.
ISSN:1359-7345
1364-548X
1364-548X
DOI:10.1039/d4cc03818e