期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 55, 期 25, 页码 7142-7147出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201602451
关键词
anthraquinone; electrochemistry; energy conversion; photoelectrodes; redox flow batteries
资金
- Danish Council for Independent Research, Technology Production [DFF-4005-00517]
- FCT [SFRH/BD/79207/2011]
- BI-DSC - European Research Council [321315, POCI-01-0145-FEDER-006939]
- FEDER
- FCT (Fundacao para a Ciencia e a Tecnologia)
- Fundação para a Ciência e a Tecnologia [SFRH/BD/79207/2011] Funding Source: FCT
The intermittent nature of the sunlight and its increasing contribution to electricity generation is fostering the energy storage research. Direct solar charging of an auspicious type of redox flow battery could make solar energy directly and efficiently dispatchable. The first solar aqueous alkaline redox flow battery using low cost and environmentally safe materials is demonstrated. The electrolytes consist of the redox couples ferrocyanide and anthraquinone-2,7-disulphonate in sodium hydroxide solution, yielding a standard cell potential of 0.74 V. Photovoltage enhancement strategies are demonstrated for the ferrocyanide-hematite junction by employing an annealing treatment and growing a layer of a conductive polyaniline polymer on the electrode surface, which decreases electron-hole recombination.
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