2015年5月11日
Photoelectrochemical Reaction for the Efficient Production of Hydrogen and High-Value-Added Oxidation Reagents
ChemSusChem
- ,
- ,
- ,
- ,
- 巻
- 8
- 号
- 9
- 開始ページ
- 1593
- 終了ページ
- 1600
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1002/cssc.201403463
- 出版者・発行元
- Wiley-VCH Verlag
A porous and thick photoelectrode of WO3 in the monoclinic phase was prepared to realize the recovery of H2 and high-value-added oxidation reagents with efficient solar energy conversion. The WO3 photoelectrode enabled the efficient production and accumulation of O2, S2O8 2-, Ce4+, and IO4 - as oxidation products. Most notably, S2O8 2-, which possesses the highest oxidizability among all the peroxides, was generated with high applied bias photon-to-current efficiency (2.2%) and faraday efficiency (≈100%) upon irradiation from the back side of the photoelectrode. The design of a tandem photoelectrode system combining a dye-sensitized solar cell (DSSC) was also challenged for the realization of this photoelectrode system without external bias. A high solar energy conversion efficiency (5.2%) was achieved in the tandem system comprising the WO3 photoelectrode connected to two DSSCs with a near-IR-utilizing dye in series for the production of H2 and S2O8 2-.
- リンク情報
- ID情報
-
- DOI : 10.1002/cssc.201403463
- ISSN : 1864-564X
- ISSN : 1864-5631
- eISSN : 1864-564X
- PubMed ID : 25872474
- SCOPUS ID : 84929088862
- Web of Science ID : WOS:000354365000010