facile synthesis and no2 gas sensing of tungsten oxide nanorods assembled microspheres
facile synthesis and no2 gas sensing of tungsten oxide nanorods assembled microspheres
... performance gas sensors. Herein, we report the synthesisof tungsten oxide nanorods assembled microspheres by a facile hydrothermal method. To our knowledge, there isno report on thegas sensing of the ... attentions [2,3]. Nanostructures of well-established gas sensing materials like tin oxide [4–6], zinc oxide [7], tungsten oxide [8–10], titanium oxide [11,12...
Ngày tải lên: 19/03/2014, 16:48
synthesis and high gas sensitivity of tin oxide nanotubes
... R air /R gas , where R air and R gas are the electrical resis- tance of the sensors in air and in gas, respectively. The gas sensing measurement was carried out at a working temperature of 200 ◦ C. 3. ... www.sciencedirect.com Sensors and Actuators B 131 (2008) 313–317 Synthesis and high gas sensitivity of tin oxide nanotubes G.X. Wang a,b,∗ , J.S. Park b , M.S. P...
Ngày tải lên: 20/03/2014, 13:08
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 and Gas Fine ... detection of both reducing and oxidizing gases [7,8]. Recently, inspired by the advantages of small size, high density of surface sites and increased surface to volum...
Ngày tải lên: 05/05/2014, 15:27
microstructure characterization and no2 sensing properties of tungsten oxide
... xxx Keywords: Tungsten oxide Nanowires Nanosheets Solvothermal synthesis Gas sensors abstract Nanowires and nanosheets of tungsten oxide were synthesized by solvothermal method with differ- ent tungsten ... [16–18], and they revealed good sensing properties while detecting toxic and haz- ardous gases. For example, very good results for H 2 S gas sensor based on tung...
Ngày tải lên: 20/03/2014, 13:04
facile synthesis and characterization of novel nanocomposites
... Chemistry and Physics 100 (2006) 507–512 Facile synthesis and characterization of novel nanocomposites of titanate nanotubes and rutile nanocrystals Jiaguo Yu ∗ , Huogen Yu State Key Laboratory of Advanced ... photocatalysts [9,10], gas sensor [11], molecular straws [12] and semiconduc- tor devices and so on where the tuning of the pore size and overall morphology ar...
Ngày tải lên: 19/03/2014, 16:48
synthesis and optical properties of colloidal tungsten oxide nanorods
... Synthesis and Optical Properties of Colloidal Tungsten Oxide Nanorods Kwangyeol Lee, Won Seok Seo, and Joon T. Park* National Research Laboratory, Department of Chemistry and School of Molecular ... preparation of soluble and highly crystalline tungsten oxide nanorods of varying sizes by a mild, solution-based colloidal approach. A stirred slurry of 0.70 g o...
Ngày tải lên: 20/03/2014, 13:08
synthesis, structure and magnetic properties of iron-doped tungsten oxide nanorods
... magnetometer. The nanorods were mainly composed of tungsten, iron and their oxides. The iron-rich phase in the nanorods exhibits soft ferromagnetic behaviors with zero coercivity and zero remanence and a ... 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 morphology...
Ngày tải lên: 20/03/2014, 13:08
Báo cáo " Sol-gel synthesis and particle size characterization of CdSe Quantum dots " ppt
... synthesis of one-dimensional nanostructure because of their high efficiency, controllability, simplicity and versatility. Hydrothermal techniques have been widely applied for the synthesis of ... where E g (a) is the effective band gap of QDs with radius of a, the band gap E g , Bohr exciton radius a B and Bohr exciton energy * y R are the specific parameters of bulk...
Ngày tải lên: 14/03/2014, 13:20
Báo cáo Y học: Cellular stresses profoundly inhibit protein synthesis and modulate the states of phosphorylation of multiple translation factors potx
... that the dephosphorylation of 4E-BP1 and the inactivation of p70 S6 kinase caused by hydrogen peroxide and sorbitol are due to impairment of the function of mTOR itself, and perhaps more likely ... overall rate of protein synthesis in the short term [15], it is unlikely that the stress-induced dephosphorylation of 4E-BP1 and loss of eIF4F complexes is a major cause of...
Ngày tải lên: 18/03/2014, 01:20
hydrothermal synthesis of tungsten oxide nanobelts
... This strategy may offer an opportunity for the further investigation of some fundamental properties of 1D tungsten oxides and may also serve as a general method for the synthesis of 1D nanostructure. 2. ... formation mechanism of tungsten oxide nanobelts is proposed. © 2006 Elsevier B.V. All rights reserved. Keywords: Hydrothermal; Tungsten oxide; Nanobelts 1. Introductio...
Ngày tải lên: 20/03/2014, 13:04