期刊
ADVANCED ENERGY MATERIALS
卷 9, 期 2, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/aenm.201802877
关键词
hydrogen; photo-electrochemical; value-added chemicals; water splitting
类别
资金
- University of Zurich
- University Research Priority Program (URPP) LightChEC
- Swiss National Science Foundation (AP Energy Grant) [PYAPP2 160586]
Photo-electrochemical (PEC) solar energy conversion offers the promise of low-cost renewable fuel generation from abundant sunlight and water. In this Review, recent developments in photo-electrochemical water splitting are discussed with respect to this promise. State-of-the-art photo-electrochemical device performance is put in context with the current understanding of the necessary requirements for cost-effective solar hydrogen generation (in terms of solar-to-hydrogen conversion efficiency and system durability, in particular). Several important studies of photo-electrochemical hydrogen generation at p-type photocathodes are highlighted, mostly with protection layers (for enhanced durability), but also a few recent examples where protective layers are not needed. Recent work with the widely studied n-type BiVO4 photoanode is detailed, which highlights the needs and necessities for the next big photoanode material yet to be discovered. The emerging new research direction of photo-electrocatalytic upgrading of biomass substrates toward value-added chemicals is then discussed, before closing with a commentary on how research on PEC materials remains a worthwhile endeavor.
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