Two step water splitting into H2 and O2 under visible light by ATaO2N (A=Ca, Sr, Ba) and WO3 with IO3-/I- shuttle redox mediator

Higashi, Masanobu; Abe, Ryu; Teramura, Kentaro et al.

Chemical Physics Letters, 2008, 452(1-3), 120-123

Permalink : https://hdl.handle.net/2115/44874

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アクセス権	open access
URI	https://hdl.handle.net/2115/44874
タイトル	Two step water splitting into H2 and O2 under visible light by ATaO2N (A=Ca, Sr, Ba) and WO3 with IO3-/I- shuttle redox mediator
著者	Higashi, Masanobu ; Abe, Ryu ; Teramura, Kentaro ; Takata, Tsuyoshi ; Ohtani, Bunsho ; Domen, Kazunari
著者名 Higashi, Masanobu
著者名 Abe, Ryu
著者名 Teramura, Kentaro
著者名 Takata, Tsuyoshi
著者名 Ohtani, Bunsho
著者名 Domen, Kazunari
言語	英語
キーワード	Photocatalyst
	Z-scheme
	two step water splitting
	oxynitride
	ATaO2N
発行日	2008-02-04
出版者	Elsevier B.V.
収録物名	Chemical Physics Letters
巻(号)	452(1-3)
ページ	120-123
抄録	Two-step water splitting into H2 and O2 under visible light irradiation is examined combining Pt-ATaO2N (A=Ca, Sr, Ba) as a H2 evolution photocatalyst and Pt-WO3 as an O2 evolution photocatalyst by IO3-/I- shuttle redox-mediator. Overall water splitting proceeds when Pt-CaTaO2N or Pt-BaTaO2N is used for H2 evolution photocatalyst, whereas photo-induced self-oxidative decomposition is predominant for Pt-SrTaO2N. The onset wavelengths of H2 evolution almost accord with the absorption edges of CaTaO2N and BaTaO2N. The available wavelength of light for H2 evolution in the present two-step water splitting system has been extended to 660 nm by using BaTaO2N.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
PISSN	0009-2614
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1016/j.cplett.2007.12.021