| Literature DB >> 26668101 |
Jin Hyun Kim1, Hiroyuki Kaneko2, Tsutomu Minegishi2, Jun Kubota2, Kazunari Domen3, Jae Sung Lee4.
Abstract
A stand-alone photoelectrochemical (PEC) water-splitting system driven only by sunlight was demonstrated with a tandem-scheme of Pt/CdS/CuGa3 Se5 /(Ag,Cu)GaSe2 photocathode and NiOOH/FeOOH/Mo:BiVO4 photoanode in a neutral phosphate buffer solution as an electrolyte. The as-prepared semi-transparent Mo:BiVO4 layer allows sunlight to pass through the top photoanode and reach the bottom photocathode. Consequently, the tandem cell showed stoichiometric hydrogen and oxygen evolution with a solar-to-hydrogen (STH) conversion efficiency of 0.67 % over 2 h without degradation. The stability and STH efficiency are the highest among similar configuration of PEC tandem cells.Entities:
Keywords: photoelectrochemical cell; photoelectrodes; solar-to-hydrogen; tandem cell; water splitting
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Year: 2015 PMID： 26668101 DOI： 10.1002/cssc.201501401
Source DB: PubMed Journal: ChemSusChem ISSN： 1864-5631 Impact factor: 8.928