Synthesis, characterization, and gas-sensor application of WO3 nanocuboids

被引：42

作者：

Li, Xiaoxia ^{[1
]}

Zhang, Guoying ^{[1
]}

Cheng, Fangyi ^{[1
]}

Guo, Bing ^{[1
]}

Chen, Jun ^{[1
]}

机构：

[1] Nankai Univ, Inst New Energy Mat Chem, Tianjin 300071, Peoples R China

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2006年 / 153卷 / 07期

关键词：

D O I：

10.1149/1.2195880

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Different sizes of single-crystal tungsten trioxide nanocuboids with monoclinic structure have been successfully synthesized via one-step hydrothermal procedure with and without the addition of cationic surfactant cetyltrimethylammonium bromide (CTAB) at 453 K. The as-synthesized products were characterized by X-ray powder diffraction, scanning electron microscopy, transmission electron microscopy (TEM), high-resolution TEM, and UV-visible absorption spectra. The results showed that the size of the WO3 nanocuboids can be simply controlled by varying the molar ratio of CTAB to tungstenic acid. A solid-solution-solid mechanism of crystal growth was discussed. The as-prepared WO3 nanocuboids were further applied in gas sensors, displaying promising selectivity and high sensitivity to various organic gases such as petrol and ethanol. (c) 2006 The Electrochemical Society.

引用

页码：H133 / H137

页数：5

共 34 条

[1] Semiconductor clusters, nanocrystals, and quantum dots [J].

Alivisatos, AP .

SCIENCE, 1996, 271 (5251) :933-937

[2] Influence of coloring voltage and thickness on electrochromical properties of e-beam evaporated WO3 thin films [J].

Azimirad, R ;

Akhavan, O ;

Moshfegh, AZ .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2006, 153 (02) :E11-E16

[3] Controlled electrodeposition of nanoparticulate tungsten oxide [J].

Baeck, SH ;

Jaramillo, T ;

Stucky, GD ;

McFarland, EW .

NANO LETTERS, 2002, 2 (08) :831-834

[4] Crystallite nanosize effect on the structural transitions of WO3 studied by Raman spectroscopy [J].

Boulova, M ;

Lucazeau, G .

JOURNAL OF SOLID STATE CHEMISTRY, 2002, 167 (02) :425-434

[5] α-Fe2O3 nanotubes in gas sensor and lithium-ion battery applications [J].

Chen, J ;

Xu, LN ;

Li, WY ;

Gou, XL .

ADVANCED MATERIALS, 2005, 17 (05) :582-+

[6] Sensors for detecting sub-ppm NO2 using photochemically produced amorphous tungsten oxide [J].

Chu, CW ;

Deen, MJ ;

Hill, RH .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1998, 145 (12) :4219-4225

[7] Nucleation and growth of lead sulfide nano- and microcrystallites in supramolecular polymer assemblies [J].

Dutta, AK ;

Ho, TT ;

Zhang, LQ ;

Stroeve, P .

CHEMISTRY OF MATERIALS, 2000, 12 (04) :1042-1048

[8] Investigations of nonstoichiometric tungsten oxide nanoparticles [J].

Frey, GL ;

Rothschild, A ;

Sloan, J ;

Rosentsveig, R ;

Popovitz-Biro, R ;

Tenne, R .

JOURNAL OF SOLID STATE CHEMISTRY, 2001, 162 (02) :300-314

[9] OPTICAL-PROPERTIES OF DILUTE HYDROGEN TUNGSTEN BRONZE THIN-FILMS [J].

GREEN, M ;

HUSSAIN, Z .

JOURNAL OF APPLIED PHYSICS, 1991, 69 (11) :7788-7796

[10] Tungsten oxide nanowires on tungsten substrates [J].

Gu, G ;

Zheng, B ;

Han, WQ ;

Roth, S ;

Liu, J .

NANO LETTERS, 2002, 2 (08) :849-851

← 1 2 3 4 →