In this work, the novel FeNi-LDH/NF and (Fe-Ni)Ox/NF were prepared using facile hydrothermal and calcination methods. The electrocatalyst FeNi-LDH/NF ((Fe-Ni)Ox/NF) exhibits excellent HER catalytic activity, and produced an overpotential of 147 (210) mV at 10 mA cm−2 with a small Tafel value of 97 (100) mV dec−1 in 1.0 M KOH electrolyte. Due to the high-density active centers exposed on the surface of FeNi-based hydroxides, their electrical conductivity, and the synergistic effect between the metals, the catalytic activity of FeNi-based hydroxides is superior to that of FeNi-based oxides. The overall experimental findings showcase a feasible approach for exploring the potential of the nonprecious metal-based FeNi-LDH/NF ((Fe-Ni)Ox/NF) nanoelectrocatalyst towards alkaline HER.

Iron-nickel-based catalyst as efficient electrocatalyst for hydrogen evolution reaction
    Abstract
    1 Introduction
    2 Experimental work
        2.1 Synthesis and characterization
            2.1.1 Preparation of FeNi-LDH/NF
            2.1.2 Preparation of (Fe-Ni)Ox/NF
    2.2 Electrochemical measurements
    3 Results and morphology
        3.1 Spectral characterization
        3.2 Electrochemical characterization
    4 Conclusion
    References

• Lei Liu(College of Chemical Engineering and Materials, Handan University, Handan 056005, China)
• Qing Wang(The Third Exploration Team of Shandong, Leyuan Street, Taishan District, Tai’an Coalfield Geologic Bureau No. 17, Shandong Province, China)
• Shasha Zhu(School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China)
• Fei Chen(School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China)
• Ling Liu(School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China)
• Tianhan Huang(School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China)
• Yan Pan(School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China)
• Haoyu Wang(School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China)
• Zhaoyang Li(School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China)
• Yuxiang Fei(School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China)
• Feihong Wang(School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China)
• Tianming Chen(School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China) Corresponding author
• Ye Yuan(School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China)
• Qingyuan Guo(School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China)
• Cheng Ding(School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China)