Abstract
In this work, NiFe LDH/Ti3C2Tx/Nickel foam (NF) was successfully prepared as a binder-free electrode by depositing NiFe layered double hydroxide (LDH) nanosheets on Ti3C2Tx/NF substrate through electrodeposition approach. The strong electrostatic interactions between the negatively charged surface of MXene and positively charged NF substrate enabled the direct growth of NiFe LDH nanosheets on Ti3C2Tx/NF substrate. As a result, the as-prepared NiFe LDH/Ti3C2Tx/NF electrode exhibited an excellent OER performance, fast catalytic reaction kinetics and good chemical stability. Its overpotential reached 200 mV at a current density of 10 mA cm−2, and the cycling tests suggested a good cycling stability.
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•NiFe LDH/Ti3C2Tx/Nickel foam (NF) as a Binder-free Electrode was constructed.•There were strong electrostatic interactions between Ti3C2Tx MXene and NiFe LDH interface.•Low overpotential of 200 mV for OER at 10 mA cm−2 was achieved for NiFe LDH/Ti3C2Tx/NF.