磷化物
过电位
分解水
双金属片
材料科学
碱性水电解
腐蚀
制氢
化学工程
电解
盐水
电解水
氢
电极
无机化学
冶金
化学
催化作用
电化学
盐度
金属
电解质
工程类
物理化学
生物
有机化学
光催化
生物化学
生态学
作者
Jingwen Li,Min Song,Yezhou Hu,Chang Zhang,Wei Liu,Xiao Huang,Jingjing Zhang,Ye Zhu,Jian Zhang,Deli Wang
标识
DOI:10.1007/s12274-022-4608-8
摘要
Hydrogen generation from water splitting is of great prospect for the sustainable energy conversion. However, it is still challenging to explore stable and high-performance electrocatalysts toward hydrogen evolution reaction (HER) from saline water such as seawater due to the chloride corrosion. Herein, we developed a self-supported heterogeneous bimetallic phosphide (Ni2P-FeP) array electrode that possesses excellent HER performance in alkaline saline water with an overpotential of 89 mV at 10 mA·cm−2 and long-term stability over 90 h at 200 mA·cm−2. The analysis showed that the heterostructure between the interfaces of Ni2P-FeP plays a pivotal role in promoting the activity of catalyst. Moreover, the bimetallic phosphide nanoarrays can be employed as a shield for chlorine-corrosion resistance in the saline water, ensuring the long-term durability of hydrogen generation. When employed for alkaline saline water electrolysis, a current density of 100 mA·cm−2 is achieved at cell voltage of 1.68 V. This work presents an effective approach for the fabrication of high-performance electrode for HER in alkaline saline environments.
科研通智能强力驱动
Strongly Powered by AbleSci AI