分解水
材料科学
光电流
过电位
可再生能源
钝化
纳米技术
载流子
太阳能
氢
光催化
化学
光电子学
催化作用
电气工程
电化学
工程类
物理化学
有机化学
生物化学
图层(电子)
电极
作者
Mohit Kumar,Bhagatram Meena,Palyam Subramanyam,Duvvuri Suryakala,Ch. Subrahmanyam
标识
DOI:10.1038/s41427-022-00436-x
摘要
Abstract Environmental degradation due to the carbon emissions from burning fossil fuels has triggered the need for sustainable and renewable energy. Hydrogen has the potential to meet the global energy requirement due to its high energy density; moreover, it is also clean burning. Photoelectrochemical (PEC) water splitting is a method that generates hydrogen from water by using solar radiation. Despite the advantages of PEC water splitting, its applications are limited by poor efficiency due to the recombination of charge carriers, high overpotential, and sluggish reaction kinetics. The synergistic effect of using different strategies with cocatalyst decoration is promising to enhance efficiency and stability. Transition metal-based cocatalysts are known to improve PEC efficiency by reducing the barrier to charge transfer. Recent developments in novel cocatalyst design have led to significant advances in the fundamental understanding of improved reaction kinetics and the mechanism of hydrogen evolution. To highlight key important advances in the understanding of surface reactions, this review provides a detailed outline of very recent reports on novel PEC system design engineering with cocatalysts. More importantly, the role of cocatalysts in surface passivation and photovoltage, and photocurrent enhancement are highlighted. Finally, some challenges and potential opportunities for designing efficient cocatalysts are discussed.
科研通智能强力驱动
Strongly Powered by AbleSci AI