Overall water splitting by photoelectrochemical cells consisting of (ZnSe)(CuInGaSe) photocathodes and BiVO photoanodes

The design of photoelectrochemical (PEC) cell structures that mitigate challenges related to mass transfer is the key to achieving efficient hydrogen production. A PEC cell based on an integrated photoelectrode incorporating (ZnSe) 0.85 (CuIn 0.7 Ga 0.3 Se 2 ) 0.15 strips and BiVO 4 strips exhibited...

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Published in:Chemical communications (Cambridge, England) England), 2017-10, Vol.53 (85), p.11674-11677
Main Authors: Higashi, Tomohiro, Kaneko, Hiroyuki, Minegishi, Tsutomu, Kobayashi, Hiroyuki, Zhong, Miao, Kuang, Yongbo, Hisatomi, Takashi, Katayama, Masao, Takata, Tsuyoshi, Nishiyama, Hiroshi, Yamada, Taro, Domen, Kazunari
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Summary:The design of photoelectrochemical (PEC) cell structures that mitigate challenges related to mass transfer is the key to achieving efficient hydrogen production. A PEC cell based on an integrated photoelectrode incorporating (ZnSe) 0.85 (CuIn 0.7 Ga 0.3 Se 2 ) 0.15 strips and BiVO 4 strips exhibited 1.0% solar-to-hydrogen energy conversion efficiency even without stirring the electrolyte solution. Integrated photoelectrodes with striped structure facilitated the in-plane diffusion of reactants and achieved the water splitting efficiency of 1.0% without stirring of electrolyte.
ISSN:1359-7345
1364-548X
DOI:10.1039/c7cc06637f