期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 59, 期 38, 页码 16278-16293出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202002561
关键词
limiting factors; organic photocatalysts; overall water-splitting; photocatalysis; sacrificial electron donors
资金
- Swedish Research Council [VR 2015-03814]
- Swedish Energy Agency [44648-1]
- Swedish Research Council [2015-03814] Funding Source: Swedish Research Council
In pursuit of inexpensive and earth abundant photocatalysts for solar hydrogen production from water, conjugated polymers have shown potential to be a viable alternative to widely used inorganic counterparts. The photocatalytic performance of polymeric photocatalysts, however, is very poor in comparison to that of inorganic photocatalysts. Most of the organic photocatalysts are active in hydrogen production only when a sacrificial electron donor (SED) is added into the solution, and their high performances often rely on presence of noble metal co-catalyst (e.g. Pt). For pursuing a carbon neutral and cost-effective green hydrogen production, unassisted hydrogen production solely from water is one of the critical requirements to translate a mere bench-top research interest into the real world applications. Although this is a generic problem for both inorganic and organic types of photocatalysts, organic photocatalysts are mostly investigated in the half-reaction, and have so far shown limited success in hydrogen production from overall water-splitting. To make progress, this article exclusively discusses critical factors that are limiting the overall water-splitting in organic photocatalysts. Additionally, we also have extended the discussion to issues related to stability, accurate reporting of the hydrogen production as well as challenges to be resolved to reach 10 % STH (solar-to-hydrogen) conversion efficiency.
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