Synthesis, formation mechanism and sensing properties of WO3 hydrate nanowire netted-spheres

被引：43

作者：

Yan, Aihua ^{[1
]}

Xie, Changsheng ^{[1
,2
]}

Zeng, Dawen ^{[1
]}

Cai, Shuizhou ^{[2
]}

Hu, Mulin ^{[2
]}

机构：

[1] Huazhong Univ Sci & Technol, State Key Lab Mat Proc & Die & Mould Technol, Wuhan 430074, Peoples R China

[2] Huazhong Univ Sci & Technol, Dept Mat Sci & Engn, Nanomat & Smart Sensor Res Lab, Wuhan 430074, Peoples R China

来源：

MATERIALS RESEARCH BULLETIN | 2010年 / 45卷 / 10期

关键词：

Nanostructure; Surface; Chemical synthesis; Semiconductivity; TUNGSTEN-OXIDE NANOWIRES; ELECTROCHROMIC PROPERTIES; THIN-FILMS; NANORODS; NANOSTRUCTURES; WCL6;

D O I：

10.1016/j.materresbull.2010.05.026

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Tungsten oxide hydrate nanowire netted-spheres were successfully synthesized in the glycol solution using a facile solvothermal approach. The nanowires with uniform diameter of 4-6 nm are actually a kind of tungsten oxide hydrate/surfactant hybrid materials. The influence of surfactant, solvent, time and temperature on tailoring morphology was investigated in detail. The possible formation process of WO3 hydrate nanowire netted-sphere was proposed. Sensing properties of such WO3 hydrate sensor show that the desirable sensing characteristics towards 100 ppm ammonia gas at 320 degrees C were obtained, such as rapid response (18.3 s), high sensitivity, good reproducibility and stability. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：1541 / 1547

页数：7

共 21 条

[1] The APCVD of tungsten oxide thin films from reaction of WCl6 with ethanol and results on their gas-sensing properties [J].

Ashraf, Sobia ;

Binions, Russell ;

Blackman, Christopher S. ;

Parkin, Ivan P. .

POLYHEDRON, 2007, 26 (07) :1493-1498

[2] Atmospheric pressure chemical vapor deposition of crystalline monoclinic WO3 and WO3-x thin films from reaction of WCl6 with O-containing solvents and their photochromic and electrochromic properties [J].

Blackman, CS ;

Parkin, IP .

CHEMISTRY OF MATERIALS, 2005, 17 (06) :1583-1590

[3] Solvothermal synthesis of tungsten oxide nanorod/nanowire/nanosheet [J].

Choi, HG ;

Jung, YH ;

Kim, DK .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2005, 88 (06) :1684-1686

[4] Low temperature synthesis of nanocrystalline WO3 films by sol-gel process [J].

Djaoued, Y. ;

Priya, S. ;

Balaji, S. .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 2008, 354 (2-9) :673-679

[5] Biotemplated synthesis of single-crystalline W18O49@C core-shell nanorod and its capacitance properties [J].

Ganesan, Raman ;

Perelshtein, Ilana ;

Gedanken, Aharon .

JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (06) :1913-1919

[6] Synthesis and optical properties of colloidal tungsten oxide nanorods [J].

Lee, K ;

Seo, WS ;

Park, JT .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (12) :3408-3409

[7] Highly sensitive WO3 hollow-sphere gas sensors [J].

Li, XL ;

Lou, TJ ;

Sun, XM ;

Li, YD .

INORGANIC CHEMISTRY, 2004, 43 (17) :5442-5449

[8] Large-scale synthesis of tungsten oxide nanowires with high aspect ratio [J].

Li, XL ;

Liu, JF ;

Li, YD .

INORGANIC CHEMISTRY, 2003, 42 (03) :921-924

[9] Tuning the field-emission properties of tungsten oxide nanorods [J].

Liu, JG ;

Zhang, ZJ ;

Zhao, Y ;

Su, X ;

Liu, S ;

Wang, EG .

SMALL, 2005, 1 (03) :310-313

[10] Synthesis, Mechanism, and Gas-Sensing Application of Surfactant Tailored Tungsten Oxide Nanostructures [J].

Pokhrel, Suman ;

Simion, Cristian E. ;

Teodorescu, Valentin S. ;

Barsan, Nicolae ;

Weimar, Udo .

ADVANCED FUNCTIONAL MATERIALS, 2009, 19 (11) :1767-1774

← 1 2 3 →