A Particulate Photocatalyst Water-Splitting Panel for Large-Scale Solar Hydrogen Generation

被引：554

作者：

Goto, Yosuke ^{[1
,7
]}

Hisatomi, Takashi ^{[1
]}

Wang, Qian ^{[1
]}

Higashi, Tomohiro ^{[1
]}

Ishikiriyama, Kohki ^{[2
]}

Maeda, Tatsuya ^{[2
]}

Sakata, Yoshihisa ^{[2
]}

Okunaka, Sayuri ^{[3
,4
]}

Tokudome, Hiromasa ^{[3
,4
]}

Katayama, Masao ^{[1
]}

Akiyama, Seiji ^{[3
,5
]}

Nishiyama, Hiroshi ^{[1
]}

Inoue, Yasunobu ^{[1
]}

Takewaki, Takahiko ^{[3
,5
]}

Setoyama, Tohru ^{[3
,5
]}

Minegishi, Tsutomu ^{[1
]}

Takata, Tsuyoshi ^{[1
]}

Yamada, Taro ^{[1
]}

Domen, Kazunari ^{[1
,6
]}

机构：

[1] Univ Tokyo, Sch Engn, Dept Chem Syst Engn, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1138656, Japan

[2] Yamaguchi Univ, Grad Sch Sci & Engn Innovat, 2-16-1 Tokiwadai, Ube, Yamaguchi 7558611, Japan

[3] Japan Technol Res Assoc Artificial Photosynthet C, Chiyoda Ku, 2-11-9 Iwamotocho, Tokyo 1010032, Japan

[4] TOTO Ltd, Res Inst, 2-8-1 Honson, Chigasaki, Kanagawa 2538577, Japan

[5] Mitsubishi Chem Corp, Yokohama R&D Ctr, Aoba Ku, 1000 Kamoshida Cho, Yokohama, Kanagawa 2278502, Japan

[6] Shinshu Univ, Ctr Energy & Environm Sci, 4-17-1 Wakasato, Nagano 3808553, Japan

[7] Tokyo Metropolitan Univ, Dept Phys, 1-1 Minami Osawa, Hachioji, Tokyo 1920397, Japan

来源：

JOULE | 2018年 / 2卷 / 03期

基金：

日本学术振兴会;

关键词：

EFFICIENT; MEMBRANES; SHEETS; H-2;

D O I：

10.1016/j.joule.2017.12.009

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Sunlight-driven photocatalytic water splitting has been investigated as a potentially scalable and economically feasible means of producing renewable hydrogen. However, reactors suitable for efficient water splitting and prompt collection of gaseous products on a large scale have yet to be demonstrated. Here, we demonstrate a sunlight-powered water-splitting reactor using a fixed Al-doped SrTiO3 photocatalyst and address the key issues in the reactor design associated with the scale-up. A panel reactor filled with only a 1-mm-deep layer of water was capable of rapid release of product gas bubbles without forced convection. A flat panel reactor with 1 m(2) of light-accepting area retained the intrinsic activity of the photocatalyst and achieved a solar-to-hydrogen energy conversion efficiency of 0.4% by water splitting under natural sunlight irradiation. The concept of a readily extensible water-splitting panel is a viable means for large-scale production of low-cost renewable solar hydrogen.

引用

页码：509 / 520

页数：12

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