期刊
CHEMSUSCHEM
卷 9, 期 1, 页码 61-66出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.201501401
关键词
photoelectrochemical cell; photoelectrodes; solar-to-hydrogen; tandem cell; water splitting
资金
- Brain Korea Plus Program of the Ministry of Education
- Korea Center for Artificial Photosynthesis (KCAP) [2009-0093880]
- MOTIE [10050509]
- Japan Society for the Promotion of Science (JSPS) [23000009]
- JSPS, The international exchange program of the A3 Foresight Program of JSPS [15K17895]
- Japan Society for the Promotion of Science through Program for Leading Graduate Schools (MERIT)
- Grants-in-Aid for Scientific Research [15K17895, 23000009] Funding Source: KAKEN
- National Research Foundation of Korea [2009-0093880] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
A stand-alone photoelectrochemical (PEC) water-splitting system driven only by sunlight was demonstrated with a tandem-scheme of Pt/CdS/CuGa3Se5/(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 2h without degradation. The stability and STH efficiency are the highest among similar configuration of PEC tandem cells.
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