Hydrothermal growth of highly oriented single crystalline Ta2O5 nanorod arrays and their conversion to Ta3N5 for efficient solar driven water splitting

被引：38

作者：

Su, Zixue ^{[1
]}

Wang, Lei ^{[1
]}

Grigorescu, Sabina ^{[1
]}

Lee, Kiyoung ^{[1
]}

Schmuki, Patrik ^{[1
,2
]}

机构：

[1] Univ Erlangen Nurnberg, Dept Mat Sci & Engn, LKO WW4, D-91058 Erlangen, Germany

[2] King Abdulaziz Univ, Dept Chem, Jeddah 21413, Saudi Arabia

来源：

CHEMICAL COMMUNICATIONS | 2014年 / 50卷 / 98期

关键词：

PHOTOCATALYTIC ACTIVITY; THIN-FILMS; PHOTOANODES; OXIDATION; ELECTRODES; LAYER; OXIDE; TAON;

D O I：

10.1039/c4cc05673f

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We grow vertically aligned single crystalline Ta2O5 nanorod arrays that can be converted to Ta3N5 nanorod arrays by nitridation. Combined with cobalt phosphate (Co-Pi) as a co-catalyst, such Ta3N5 nanorod photoanodes can yield photocurrent densities of similar to 3.6 mA cm(-2) at 1.23 V-RHE and similar to 8.2 mA cm(-2) at 1.59 V-RHE under AM 1.5G (100 mW cm(-2)) irradiation.

引用

页码：15561 / 15564

页数：4

共 22 条

[1] Metal oxide photoanodes for solar hydrogen production
Alexander, Bruce D.
Kulesza, Pawel J.
Rutkowska, Iwona
Solarska, Renata
Augustynski, Jan
[J]. JOURNAL OF MATERIALS CHEMISTRY, 2008, 18 (20) : 2298 - 2303
[2] Tantalum pentoxide (Ta2O5) thin films for advanced dielectric applications
Chaneliere, C
Autran, JL
Devine, RAB
Balland, B
[J]. MATERIALS SCIENCE & ENGINEERING R-REPORTS, 1998, 22 (06) : 269 - 322
[3] Conduction and valence band positions of Ta2O5, TaON, and Ta3N5 by UPS and electrochemical methods
Chun, WJ
Ishikawa, A
Fujisawa, H
Takata, T
Kondo, JN
Hara, M
Kawai, M
Matsumoto, Y
Domen, K
[J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (08) : 1798 - 1803
[4] Synthesis of Ta3N5 Nanotube Arrays Modified with Electrocatalysts for Photoelectrochemical Water Oxidation
Cong, Yanqing
Park, Hyun S.
Wang, Shijun
Dang, Hoang X.
Fan, Fu-Ren F.
Mullins, C. Buddie
Bard, Allen J.
[J]. JOURNAL OF PHYSICAL CHEMISTRY C, 2012, 116 (27) : 14541 - 14550
[5] Nanostructured Ta3N5 Films as Visible-Light Active Photoanodes for Water Oxidation
Dang, Hoang X.
Hahn, Nathan T.
Park, Hyun S.
Bard, Allen J.
Mullins, C. Buddie
[J]. JOURNAL OF PHYSICAL CHEMISTRY C, 2012, 116 (36) : 19225 - 19232
[6] Hierarchical nanostructures of fluorinated and naked Ta2O5 single crystalline nanorods: hydrothermal preparation, formation mechanism and photocatalytic activity for H2 production
Duan, Junyuan
Shi, Weidong
Xu, Leilei
Mou, Guangying
Xin, Quanliang
Guan, Jianguo
[J]. CHEMICAL COMMUNICATIONS, 2012, 48 (58) : 7301 - 7303
[7] Fan ZY, 2009, NAT MATER, V8, P648, DOI [10.1038/NMAT2493, 10.1038/nmat2493]
[8] ELECTROCHEMICAL PHOTOLYSIS OF WATER AT A SEMICONDUCTOR ELECTRODE
FUJISHIMA, A
HONDA, K
[J]. NATURE, 1972, 238 (5358) : 37 - +
[9] Ta3N5 and TaON thin films on Ta foil:: Surface composition and stability
Hara, M
Chiba, E
Ishikawa, A
Takata, T
Kondo, JN
Domen, K
[J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (48) : 13441 - 13445
[10] Cobalt-bilayer catalyst decorated Ta3N5 nanorod arrays as integrated electrodes for photoelectrochemical water oxidation
Hou, Jungang
Wang, Zheng
Yang, Chao
Cheng, Huijie
Jiao, Shuqiang
Zhu, Hongmin
[J]. ENERGY & ENVIRONMENTAL SCIENCE, 2013, 6 (11) : 3322 - 3330

← 1 2 3 →