Abstract
The development of efficient and clean renewable energy to replace fossil fuels has been a prominent topic in recent years, with HER in the field of renewable energy widely regarded as a promising avenue. The HER involves the adsorption and desorption of hydrogen ions, making the electron transfer rate particularly crucial. This study employed a novel chemical solution route under an ambient atmosphere to prepare highly crystalline hexagonal ferromagnetic material CuFeO2 nanoparticles. By incorporating the Nanosheet material MXene, forthputting its unique strong interlayer Van Der Waals forces, CuFeO2 is embedded within the layers of MXene. Compounding CuFeO2 with MXene increases the active sites of the material, enhancing electron transfer rates and reducing the required potential for HER. The electrochemical impedance spectroscopy results demonstrated a significant reduction in resistance upon the addition of MXene. The best HER performance was observed in CFO-300mg MX, exhibiting the lowest overpotential of −0.5 V vs. RHE and a Tafel slope of 147 mV dec−1.
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