Photoelectrochemical water splitting over ordered honeycomb hematite electrodes stabilized by alumina shielding

被引：84

作者：

Jun, Hwichan ^{[1
]}

Im, Badro ^{[1
]}

Kim, Jae Young ^{[1
]}

Im, Yong-O ^{[1
]}

Jang, Ji-Wook ^{[1
]}

Kim, Eun Sun ^{[1
]}

Kim, Jae Yul ^{[1
]}

Kang, Hyeon Joon ^{[1
]}

Hong, Suk Joon ^{[1
]}

Lee, Jae Sung ^{[1
]}

机构：

[1] POSTECH, Dept Chem Engn, Div Adv Nucl Engn, Pohang 790784, South Korea

来源：

ENERGY & ENVIRONMENTAL SCIENCE | 2012年 / 5卷 / 04期

关键词：

THIN-FILMS; HYDROGEN-PRODUCTION; CHARGE-TRANSFER; IRON-OXIDE; PHOTOOXIDATION; FABRICATION; PHOTOANODE; GENERATION; ARRAYS; TI;

D O I：

10.1039/c1ee02526k

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Highly ordered, honeycomb-like iron oxide (hematite) films were fabricated by double-step anodic oxidation of iron foil. The honeycomb structure obtained by double step anodization was found to be more effective in producing a large area film with homogeneous pore distribution compared to nanotubes fabricated by the conventional single-step anodic oxidation process. To prevent agglomeration of the hematite film during the annealing process, a thin alumina layer was deposited on the hematite film surface by atomic layer deposition. With this alumina shielding and subsequent removal by alkaline treatment, one-dimensional (1-D) hematite nanostructure was preserved perfectly after annealing at 550 degrees C. This highly ordered 1-D nanostructure film showed much enhanced photoelectrochemical cell performances relative to hematite films with low degrees of ordering.

引用

页码：6375 / 6382

页数：8

共 58 条

[21] SUBSTITUTIONAL AND DEFECT DOPING EFFECTS ON THE PHOTOELECTROCHEMICAL PROPERTIES OF FE2O3 [J].

HOULIHAN, JF ;

PANNAPARAYIL, T ;

BURDETTE, HL ;

MADACSI, DP ;

POLLOCK, RJ .

MATERIALS RESEARCH BULLETIN, 1985, 20 (02) :163-177

[22] Pt-doped α-Fe2O3 thin films active for photoelectrochemical water splitting [J].

Hu, Yong-Sheng ;

Kleiman-Shwarsctein, Alan ;

Forman, Arnold J. ;

Hazen, Daniel ;

Park, Jung-Nam ;

McFarland, Eric W. .

CHEMISTRY OF MATERIALS, 2008, 20 (12) :3803-3805

[23] Study of the optimal condition for electroplating of Bi2S3 thin films and their photoelectrochemical characteristics [J].

Jana, Atanu ;

Bhattacharya, Chinmoy ;

Sinha, Subrata ;

Datta, Jayati .

JOURNAL OF SOLID STATE ELECTROCHEMISTRY, 2009, 13 (09) :1339-1350

[24] New benchmark for water photooxidation by nanostructured α-Fe2O3 films [J].

Kay, Andreas ;

Cesar, Ilkay ;

Graetzel, Michael .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2006, 128 (49) :15714-15721

[25] PHOTO-OXIDATION OF WATER AT ALPHA-FE2O3 ELECTRODES [J].

KENNEDY, JH ;

FRESE, KW .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1978, 125 (05) :709-714

[26] Engineered Nanorod Perovskite Film Photocatalysts to Harvest Visible Light [J].

Kim, Hyun Gyu ;

Borse, Pramod H. ;

Jang, Jum Suk ;

Ahn, Chang Won ;

Jeong, Euh Duck ;

Lee, Jae Sung .

ADVANCED MATERIALS, 2011, 23 (18) :2088-+

[27] Charge transfer in iron oxide photoanode modified with carbon nanotubes for photoelectrochemical water oxidation: An electrochemical impedance study [J].

Kim, Jae Young ;

Jun, Hwichan ;

Hong, Suk Joon ;

Kim, Hyun Gyu ;

Lee, Jae Sung .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2011, 36 (16) :9462-9468

[28] Electrodeposited Aluminum-Doped α-Fe2O3 Photoelectrodes: Experiment and Theory [J].

Kleiman-Shwarsctein, Alan ;

Huda, Muhammad N. ;

Walsh, Aron ;

Yan, Yanfa ;

Stucky, Galen D. ;

Hu, Yong-Sheng ;

Al-Jassim, Mowafak M. ;

McFarland, Eric W. .

CHEMISTRY OF MATERIALS, 2010, 22 (02) :510-517

[29] A perspective on solar-driven water splitting with all-oxide hetero-nanostructures [J].

Kronawitter, Coleman X. ;

Vayssieres, Lionel ;

Shen, Shaohua ;

Guo, Leijin ;

Wheeler, Damon A. ;

Zhang, Jin Z. ;

Antoun, Bonnie R. ;

Mao, Samuel S. .

ENERGY & ENVIRONMENTAL SCIENCE, 2011, 4 (10) :3889-3899

[30] Temperature-Dependent Growth of Self-Assembled Hematite (α-Fe2O3) Nanotube Arrays: Rapid Electrochemical Synthesis and Photoelectrochemical Properties [J].

LaTempa, Thomas J. ;

Feng, Xinjian ;

Paulose, Maggie ;

Grimes, Craig A. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2009, 113 (36) :16293-16298

← 1 2 3 4 5 6 →