Fabrication and photoelectrochemical properties of La5Ti2MS5O7 (M = Ag, Cu) electrodes

被引：32

作者：

Katayama, M. ^{[1
]}

Yokoyama, D. ^{[1
]}

Maeda, Y. ^{[1
]}

Ozaki, Y. ^{[1
]}

Tabata, M. ^{[1
]}

Matsumoto, Y. ^{[2
]}

Ishikawa, A. ^{[1
]}

Kubota, J. ^{[1
]}

Domen, K. ^{[1
]}

机构：

[1] Univ Tokyo, Dept Chem Syst Engn, Bunkyo Ku, Tokyo 1138656, Japan

[2] Tokyo Inst Technol, Mat & Struct Lab, Midori Ku, Yokohama, Kanagawa 2268503, Japan

来源：

MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS | 2010年 / 173卷 / 1-3期

关键词：

Thin film; Photocatalyst; Photoelectrode; VISIBLE-LIGHT IRRADIATION; OXYSULFIDE SM2TI2S2O5; WATER OXIDATION; PHOTOELECTROLYSIS; REDUCTION; FILMS; WO3;

D O I：

10.1016/j.mseb.2009.12.021

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Electrodes of La5Ti2MS5O7 (M = Ag, Cu) were prepared and photoelectrochemical properties of the electrodes were investigated. Two types of electrode preparation methods were carried out: one was spreading a viscous slurry of the bulk powder on a glass plate coated with fluorine-doped tin oxide, and another was thin film growth by vacuum processes followed by annealing treatment. By the use of vacuum processes, clear and higher photocurrent under visible-light irradiation was observed for both La5Ti2CuS5O7 and La5Ti2AgS5O7. The observed photocurrent was photocathodic, indicating that these materials acted as a p-type semiconductor. La5Ti2MS5O7 are promising materials of a photoelectrode for water splitting under visible-light irradiation. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：275 / 278

页数：4

共 14 条

[1] Metal oxide photoelectrodes for hydrogen generation using solar radiation-driven water splitting [J].

Aroutiounian, VM ;

Arakelyan, VM ;

Shahnazaryan, GE .

SOLAR ENERGY, 2005, 78 (05) :581-592

[2] PHOTOELECTROLYSIS AND PHYSICAL-PROPERTIES OF SEMICONDUCTING ELECTRODE WO3 [J].

BUTLER, MA .

JOURNAL OF APPLIED PHYSICS, 1977, 48 (05) :1914-1920

[3] ELECTROCHEMICAL PHOTOLYSIS OF WATER AT A SEMICONDUCTOR ELECTRODE [J].

FUJISHIMA, A ;

HONDA, K .

NATURE, 1972, 238 (5358) :37-+

[4] Electrical conductivity control in transparent p-type (LaO)CuS thin films prepared by rf sputtering [J].

Hiramatsu, H ;

Orita, M ;

Hirano, M ;

Ueda, K ;

Hosono, H .

JOURNAL OF APPLIED PHYSICS, 2002, 91 (11) :9177-9181

[5] Oxysulfides Ln2Ti2S2O5 as stable photocatalysts for water oxidation and reduction under visible-light irradiation [J].

Ishikawa, A ;

Takata, T ;

Matsumura, T ;

Kondo, JN ;

Hara, M ;

Kobayashi, H ;

Domen, K .

JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (08) :2637-2642

[6] Novel synthesis and photocatalytic activity of oxysulfide Sm2Ti2S2O5 [J].

Ishikawa, A ;

Yamada, Y ;

Takata, T ;

Kondo, JN ;

Hara, M ;

Kobayashi, H ;

Domen, K .

CHEMISTRY OF MATERIALS, 2003, 15 (23) :4442-4446

[7] Oxysulfide Sm2Ti2S2O5 as a stable photocatalyst for water oxidation and reduction under visible light irradiation (λ ≤ 650 nm) [J].

Ishikawa, A ;

Takata, T ;

Kondo, JN ;

Hara, M ;

Kobayashi, H ;

Domen, K .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (45) :13547-13553

[8] Efficient photochemical water splitting by a chemically modified n-TiO2 2 [J].

Khan, SUM ;

Al-Shahry, M ;

Ingler, WB .

SCIENCE, 2002, 297 (5590) :2243-2245

[9] A monolithic photovoltaic-photoelectrochemical device for hydrogen production via water splitting [J].

Khaselev, O ;

Turner, JA .

SCIENCE, 1998, 280 (5362) :425-427

[10] Crystal structures of two new oxysulfides La5Ti2MS5O7 (M = Cu, Ag):: evidence of anionic segregation [J].

Meignen, V ;

Cario, L ;

Lafond, A ;

Moëlo, Y ;

Guillot-Deudon, C ;

Meerschaut, A .

JOURNAL OF SOLID STATE CHEMISTRY, 2004, 177 (08) :2810-2817

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