Preparation and characterization of anodized Pt-TiO2 nanotube arrays for water splitting

被引：24

作者：

Nam, Wooseok ^{[1
]}

Han, Gui Young ^{[1
]}

机构：

[1] Sungkyunkwan Univ, Dept Chem Engn, Suwon 440746, South Korea

来源：

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN | 2007年 / 40卷 / 03期

关键词：

titanium dioxide; nanotube; hydrogen; photoelectrochemistry;

D O I：

10.1252/jcej.40.266

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Self-organized TiO2 nanotube-layers were formed by the electrochemical anodization of Ti in an HF electrolyte. The nanotube layers were then treated at different temperatures (300-600 degrees C) in the air. Platinum was doped on the TiO2 nanotube layer by e-beam sputtering. The samples were characterized by EDX, BET, XPS, SEM, XRD and photoelectrochemistry. The results clearly showed the successful Pt-doping of the TiO2 nanotubes. The photocatalytic evolution of H-2 due to the decomposition of water in the alkaline solution was investigated using the Pt-TiO2. nanotubes as a photocatalyst and iodide ions in the form of KI as a redox mediator. The results showed that the Pt-TiO2 nanotube photocatalyst generated H. successfully.

引用

页码：266 / 269

页数：4

共 12 条

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

FUJISHIMA, A ;

HONDA, K .

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

[2]

Fujishima A., 2000, Journal of Photochemistry and Photobiology C: Photochemistry Reviews, V1, P1, DOI [10.1016/S1389-5567(00)00002-2, DOI 10.1016/S1389-5567(00)00002-2]

[3] Dye-sensitized solar cells [J].

Grätzel, M .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS, 2003, 4 (02) :145-153

[4] Preparation and characterisation of titanium dioxide films for catalytic applications generated by anodic spark deposition [J].

Meyer, S ;

Gorges, R ;

Kreisel, G .

THIN SOLID FILMS, 2004, 450 (02) :276-281

[5] A room-temperature TiO2-nanotube hydrogen sensor able to self-clean photoactively from environmental contamination [J].

Mor, GK ;

Carvalho, MA ;

Varghese, OK ;

Pishko, MV ;

Grimes, CA .

JOURNAL OF MATERIALS RESEARCH, 2004, 19 (02) :628-634

[6] A LOW-COST, HIGH-EFFICIENCY SOLAR-CELL BASED ON DYE-SENSITIZED COLLOIDAL TIO2 FILMS [J].

OREGAN, B ;

GRATZEL, M .

NATURE, 1991, 353 (6346) :737-740

[7] Development of porous anodic films on 2014-T4 aluminium alloy in tetraborate electrolyte [J].

Pakes, A ;

Thompson, GE ;

Skeldon, P ;

Morgan, PC .

CORROSION SCIENCE, 2003, 45 (06) :1275-1287

[8] O-18 STUDY OF FIELD-ASSISTED PORE FORMATION IN COMPACT ANODIC OXIDE-FILMS ON ALUMINUM [J].

SIEJKA, J ;

ORTEGA, C .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1977, 124 (06) :883-891

[9] Porous anodic alumina: Fabrication, characterization and applications [J].

Thompson, GE .

THIN SOLID FILMS, 1997, 297 (1-2) :192-201

[10] Hydrogen sensing using titania nanotubes [J].

Varghese, OK ;

Gong, DW ;

Paulose, M ;

Ong, KG ;

Grimes, CA .

SENSORS AND ACTUATORS B-CHEMICAL, 2003, 93 (1-3) :338-344

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