ethanol sensing properties of tungsten oxide nanorods prepared by
ethanol sensing properties of tungsten oxide nanorods prepared by
... Ethanol sensing properties of tungsten oxide nanorods prepared by microwave hydrothermal method Yani Li a , Xintai Su a, * , Jikang Jian b , Jide Wang a a Ministry Key Laboratory of Oil ... work, we studied the ethanol sensing property of the WO 3 nanorods. The sensing characteristic of the WO 3 nanorods at temperatures of 370–500 8C with ethanol concentra...
Ngày tải lên: 05/05/2014, 15:27
microstructure characterization and no2 sensing properties of tungsten oxide
... supersaturation oftungsten source, promoting the growth of tungsten oxide nanowires [23]. At higher concentration, the highly saturated WCl 6 could prohibit the growth of tungsten oxide nanowires ... the potential of tungsten oxide nanostructures in toxic gas detection. In this work, we synthesized one-dimensional bundled nanowires and two-dimensional nanosheets of tungst...
Ngày tải lên: 20/03/2014, 13:04
facile synthesis and no2 gas sensing of tungsten oxide nanorods assembled microspheres
... the synthesisof tungsten oxide nanorods assembled microspheres by a facile hydrothermal method. To our knowledge, there isno report on thegas sensing of the microsphere- like tungsten oxide nanostructures. ... oxalic acid /tungsten ratio of 4:1. Inset is the corresponding diffraction pattern. 3.3. Gas sensing properties The gas sensing properties of the annealed m...
Ngày tải lên: 19/03/2014, 16:48
structural and electrochromic properties of tungsten oxide prepared by surfactant-assisted process
... 2009 Keywords: Nanostructured Electrochromic Tungsten oxide abstract By virtue of gemini surfactant template, nanostructured tungsten oxides thin films were prepared from the modified tungsten hexachloride sol–gel ... nanosize in the continuity of tungsten oxide frameworks. According to the previous study of electrochromic oxides [31], such type of nanostructure containi...
Ngày tải lên: 20/03/2014, 13:08
gas - sensing properties of tin oxide doped with metal oxides and carbon
... image of an MWCNTs-doped SnO 2 sol (c); FE-SEM image of an MWCNTs-doped SnO 2 (d). Please cite this article in press as: N. Van Hieu, et al., Gas -sensing properties of tin oxide doped with metal oxides ... article in press as: N. Van Hieu, et al., Gas -sensing properties of tin oxide doped with metal oxides and carbon nanotubes: A competitive sensor for ethanol and liquid...
Ngày tải lên: 19/03/2014, 16:48
acetone sensing characteristics of zno hollow spheres prepared by
... Acetone sensing characteristics of ZnO hollow spheres prepared by one-pot hydrothermal reaction Peng Song n , Qi Wang, Zhongxi Yang School of Material Science and Engineering, ... hollow spheres are prepared by the one-pot hydrothermal reaction. The study focuses on the formation mechanism of ZnO hollow spheres and the effect of hollow morphology on the acetone sensing cha...
Ngày tải lên: 06/05/2014, 13:22
gas sensing properties of nanocrystalline tungsten oxide synthesized by acid
... ammonia gas sensing prop- erties of nanocrystalline tungsten oxide with and withoutplatinum doping under different processing conditions. 2. Experimental Tungsten trioxide powder was prepared by acidic ... to increase in response of tungsten oxide sensor with decrease in grain size as reported by Tamaki et al. [13]. The sensing properties of WO 3 film are also contr...
Ngày tải lên: 19/03/2014, 16:48
synthesis and optical properties of colloidal tungsten oxide nanorods
... size-depend- ent properties of the oxide nanorod itself as well as of inorganic derivatives prepared from the oxide. Herein we report a simple large-scale preparation of soluble and highly crystalline tungsten oxide ... tungsten oxide nanorods of varying sizes by a mild, solution-based colloidal approach. A stirred slurry of 0.70 g of W(CO) 6 (Strem, 99%), 1.33...
Ngày tải lên: 20/03/2014, 13:08
synthesis, structure and magnetic properties of iron-doped tungsten oxide nanorods
... 81.07.Wx Keywords: Iron; Nanorods; Magnetic properties; Tungsten oxide 1. Introduction Nanomaterials have been the subject of intense research in recent years because of their unique properties in comparison ... exclude the presence of ARTICLE IN PRESS Fig. 2. TEM images of the as-synthesized Fe-doped tungsten oxide nanorods: (a) low magnification image shows the morpholog...
Ngày tải lên: 20/03/2014, 13:08
electrical and gas - sensing properties of wo3 semiconductor material
... (350±800°C) for 1 h in air. Thickness of the sen- sitive bodies after sintering was approximately 0.6±0.8 mm. 2.4. Measurement of sensing properties The gas -sensing properties were examined in a chamber ... properties of the sen- sor shows the characteristic of a typical surface-con- trolled model [12±14]. Electron concentration of WO 3 semiconductor is determined mainly...
Ngày tải lên: 19/03/2014, 16:48