High Stability and Efficiency of GaN Photocatalyst for Hydrogen Generation from Water

被引：53

作者：

Hayashi, Tomoe ^{[1
]}

Deura, Momoko ^{[1
]}

Ohkawa, Kazuhiro ^{[1
]}

机构：

[1] Tokyo Univ Sci, Fac Sci, Dept Appl Phys, Shinjuku Ku, Tokyo 1628601, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS | 2012年 / 51卷 / 11期

关键词：

VISIBLE-LIGHT IRRADIATION; N-TYPE GAN; NIO-SRTIO3; CATALYST; SOLID-SOLUTION; DECOMPOSITION; H-2; O-2; OXIDATION; REDUCTION; VAPOR;

D O I：

10.1143/JJAP.51.112601

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Continuous hydrogen generation from water was realized for 110 h using an n-type GaN film with a NiO cocatalyst. This GaN-NiO photocatalyst exhibits incident photon-to-current conversion efficiencies of 70 and 57% at wavelengths of 300 and 350 nm, respectively. These results indicate that the GaN-NiO photocatalyst has high stability and efficiency for hydrogen generation. (C) 2012 The Japan Society of Applied Physics

引用

页数：3

共 28 条

[1] Conduction and valence band positions of Ta2O5, TaON, and Ta3N5 by UPS and electrochemical methods [J].

Chun, WJ ;

Ishikawa, A ;

Fujisawa, H ;

Takata, T ;

Kondo, JN ;

Hara, M ;

Kawai, M ;

Matsumoto, Y ;

Domen, K .

JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (08) :1798-1803

[2] STUDY OF THE PHOTOCATALYTIC DECOMPOSITION OF WATER-VAPOR OVER A NIO-SRTIO3 CATALYST [J].

DOMEN, K ;

NAITO, S ;

ONISHI, T ;

TAMARU, K .

JOURNAL OF PHYSICAL CHEMISTRY, 1982, 86 (18) :3657-3661

[3] PHOTODECOMPOSITION OF WATER AND HYDROGEN EVOLUTION FROM AQUEOUS METHANOL SOLUTION OVER NOVEL NIOBATE PHOTOCATALYSTS [J].

DOMEN, K ;

KUDO, A ;

SHINOZAKI, A ;

TANAKA, A ;

MARUYA, K ;

ONISHI, T .

JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1986, (04) :356-357

[4] MECHANISM OF PHOTOCATALYTIC DECOMPOSITION OF WATER INTO H-2 AND O-2 OVER NIO - SRTIO3 [J].

DOMEN, K ;

KUDO, A ;

ONISHI, T .

JOURNAL OF CATALYSIS, 1986, 102 (01) :92-98

[5] PHOTOCATALYTIC DECOMPOSITION OF WATER-VAPOR ON AN NIO-SRTIO3 CATALYST [J].

DOMEN, K ;

NAITO, S ;

SOMA, M ;

ONISHI, T ;

TAMARU, K .

JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1980, (12) :543-544

[6] PHOTOCATALYTIC DECOMPOSITION OF WATER INTO H-2 AND O-2 OVER NIO-SRTIO3 POWDER .1. STRUCTURE OF THE CATALYST [J].

DOMEN, K ;

KUDO, A ;

ONISHI, T ;

KOSUGI, N ;

KURODA, H .

JOURNAL OF PHYSICAL CHEMISTRY, 1986, 90 (02) :292-295

[7] Hydrogen gas generation by splitting aqueous water using n-type GaN photoelectrode with anodic oxidation [J].

Fujii, K ;

Karasawa, TK ;

Ohkawa, K .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 2005, 44 (16-19) :L543-L545

[8] Investigation of surface morphology of n-type GaN after photoelectrochemical reaction in various solutions for H2 gas generation [J].

Fujii, Katsushi ;

Ito, Takashi ;

No, Masato ;

Iwaki, Yasuhiro ;

Yao, Takafumi ;

Ohkawa, Kazuhiro .

PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 4 NO 7 2007, 2007, 4 (07) :2650-+

[9] Band-edge energies and photoelectrochemical properties of n-type AlxGa1-xN and InyGa1-yN alloys [J].

Fujii, Katsushi ;

Ono, Masato ;

Ito, Takashi ;

Iwaki, Yasuhiro ;

Hirako, Akira ;

Ohkawa, Kazuhiro .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2007, 154 (02) :B175-B179

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

FUJISHIMA, A ;

HONDA, K .

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

← 1 2 3 →