| 초록 |
Nickel phosphide has been considered to be one of the cost-efficient catalysts for hydrogen evolution reaction (HER). However, the current Ni2P nanospheres (NSs) still delivers a limited electrochemical performance due to the sluggish kinetics as well as undesired structural degradation during operation. Herein, we report the synthesis of Ni2P NSs immobilized on defected-engineering Ti3C2Tx MXene nanosheets with high electrochemical activity and excellent long-term stability. The strong interaction between Ni2P and the MXene due to the defected sites on MXene contributes to the exceptional catalytic performance with low overpotentials of 123.6 mV to achieve 10 mA/cm2 and impressive Tafel slope of 39 mV/dec in acidic medium. Our work provides an efficient route to improve the HER performance of Ni2P NSs and strategies for designing MXene-based materials toward water splitting. |
