Current understanding and challenges of solar-driven hydrogen generation using polymeric photocatalysts

Wang, Yiou, Vogel, Anastasia, Sachs, Michael, Sprick, Reiner Sebastian, Wilbraham, Liam, Moniz, Savio JA, Godin, Robert, Zwijnenburg, Martijn A, Durrant, James R, Cooper, Andrew I
et al (show 1 more authors) (2019) Current understanding and challenges of solar-driven hydrogen generation using polymeric photocatalysts. NATURE ENERGY, 4 (9). pp. 746-760.

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The use of hydrogen as a fuel, when generated from water using semiconductor photocatalysts and driven by sunlight, is a sustainable alternative to fossil fuels. Polymeric photocatalysts are based on Earth-abundant elements and have the advantage over their inorganic counterparts in that their electronic properties are easily tuneable through molecular engineering. Polymeric photocatalysts have developed rapidly over the past decade, resulting in the discovery of many active materials. However, our understanding of the key properties underlying their photoinitiated redox processes has not kept pace, and this impedes further progress to generate cost-competitive technologies. Here, we discuss state-of-the-art polymeric photocatalysts and our microscopic understanding of their activities. We conclude with a discussion of five outstanding challenges in this field: non-standardized reporting of activities, limited photochemical stability, insufficient knowledge of reaction mechanisms, balancing charge carrier lifetimes with catalysis timescales and the use of unsustainable sacrificial reagents.

Item Type: Article
Uncontrolled Keywords: 40 Engineering, 4008 Electrical Engineering, 4017 Mechanical Engineering, 7 Affordable and Clean Energy
Depositing User: Symplectic Admin
Date Deposited: 08 Oct 2019 08:33
Last Modified: 21 Jun 2024 18:11
DOI: 10.1038/s41560-019-0456-5
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