Journal
INORGANIC CHEMISTRY FRONTIERS
Volume 9, Issue 13, Pages 3148-3155Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d2qi00133k
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Funding
- National Natural Science Foundation of China [51972064]
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In this study, NiFe-MOF@NF nanosheets were prepared using a two-step procedure, and exhibited excellent catalytic performance in the anodic OER process. The nanosheets showed a small overpotential and impressive long-term catalytic durability and stability, mainly due to the substantial active metal centres, enhanced electrical conductivity, and favorable kinetics. This strategy is of great significance for the development of highly efficient metal electrocatalysts and the application of metal catalysts in the OER.
The design and preparation of outstanding catalysts are significant for the electrocatalytic oxygen evolution reaction (OER), which performs a crucial function in electrochemical water splitting. Herein, we have prepared metal-organic framework (MOF) nanosheets on a nickel foam (NF) substrate via a two-step procedure including a hydrothermal reaction and an in situ transformation process. As for the anodic OER process, the obtained NiFe-MOF@NF demonstrates excellent catalytic performance with a small overpotential of 265 mV to reach a current density of 10 mA cm(-2), and impressive long-term catalytic durability and stability without obvious deactivation. The superior electrocatalytic performance of the obtained NiFe-MOF@NF material is mainly due to the substantial active metal centres, enhanced electrical conductivity and favorable kinetics. We believe that the strategy will be of great benefit to the development of highly efficient metal electrocatalysts, and will pave the way for the application of metal catalysts in the OER.
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