For electrochemical energy conversion, highly efficient and stable electrocatalysts are required, which are principally designed and synthesized by virtue of structural regulations. Two-dimensional Cluster-based Metal-Organic Layers (CMOLs) would have good...
The correlation between coordination mode and electrocatalytic water oxidation behavior are highly remarkable. Herein, we designed an iron-based metal-organic framework (MOF) to realize a configuration variety from the traditional mononuclear configuration (Fe-MOF-M) to the binuclear structure (Fe-MOF-B). The configuration of Fe-MOF was successfully regulated by pH control and nickel was introduced into the iron-based MOF to obtain an efficient heterogeneous electrocatalyst. Benefiting from the dual function of adding Ni atoms, enhanced stability and optimized synergistic effect of different metal sites, the Ni 0.8 Fe 0.2 -MOF-B delivers a current density of 10 mA cm À 2 at a low overpotential of 301 mV with a small Tafel slope of 62.3 mV dec À 1 in 0.1 M KOH. This work presents a simple method to adjust configuration and the Ni 0.8 Fe 0.2 -MOF-B plays a supporting role to investigate the impact of configuration on OER performance.
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