偶极子
光催化
无定形固体
催化作用
半导体
材料科学
太阳能燃料
化学工程
化学物理
光电子学
纳米技术
化学
结晶学
有机化学
工程类
作者
Xin Wang,Boyan Liu,Sisi Ma,Yingjuan Zhang,Luyao Wang,Gangqiang Zhu,Wei Huang,Songcan Wang
标识
DOI:10.1038/s41467-024-47022-z
摘要
Abstract Amorphous semiconductors without perfect crystalline lattice structures are usually considered to be unfavorable for photocatalysis due to the presence of enriched trap states and defects. Here we demonstrate that breaking long-range atomic order in an amorphous ZnCdS photocatalyst can induce dipole moments and generate strong electric fields within the particles which facilitates charge separation and transfer. Loading 1 wt.% of low-cost Co-MoS x cocatalysts to the ZnCdS material increases the H 2 evolution rate to 70.13 mmol g −1 h −1 , which is over 5 times higher than its crystalline counterpart and is stable over the long-term up to 160 h. A flexible 20 cm × 20 cm Co-MoS x /ZnCdS film is prepared by a facile blade-coating technique and can generate numerous observable H 2 bubbles under natural sunlight, exhibiting potential for scale-up solar H 2 production.
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