synthesis of wo3tio2 nanocomposites via sol–gel method

synthesis of wo3tio2 nanocomposites via sol–gel method

synthesis of wo3tio2 nanocomposites via sol–gel method

... Journal of Alloys and Compounds 398 (2005) 200–202 Synthesis of WO 3 /TiO 2 nanocomposites via sol–gel method Huaming Yang a,∗ , Rongrong Shi a , Ke Zhang a , ... It is reported that WO 3 /TiO 2 nanocomposites have higher photocatalytic activity [14,15]. In this paper, synthesis of WO 3 /TiO 2 nanocomposites via the sol–gel method was attempted. 2. Experimental ......
Ngày tải lên : 20/03/2014, 13:08
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sol–gel synthesis and morphological control of nanocrystalline tio2 via urea treatment

sol–gel synthesis and morphological control of nanocrystalline tio2 via urea treatment

... Journal of Colloid and Interface Science 316 (2007) 160–167 www.elsevier.com/locate/jcis Sol–gel synthesis and morphological control of nanocrystalline TiO 2 via urea treatment Li-Heng ... 160–167 161 anatase to rutile and of brookite to rutile do not take place re- versibly [24]. It is generally claimed that the sol–gel synthesis of ceramic oxides offers advantages such as...
Ngày tải lên : 20/03/2014, 13:07
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Báo cáo " Sol-gel synthesis and particle size characterization of CdSe Quantum dots " ppt

Báo cáo " Sol-gel synthesis and particle size characterization of CdSe Quantum dots " ppt

... theoretical expression, TEM etc. The TEM images of samples show that the mean sizes of QDs are 4 nm. The mean sizes of QDs are smaller than that of other methods and arranging from 2 to 3.6 nm. 1. ... synthesis of one-dimensional nanostructure because of their high efficiency, controllability, simplicity and versatility. Hydrothermal techniques have been widely applied for t...
Ngày tải lên : 14/03/2014, 13:20
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Báo cáo "Another method of logic synthesis of digital counting circuits " pptx

Báo cáo "Another method of logic synthesis of digital counting circuits " pptx

... = 2 ℓ - 2 Another method of logic synthesis of 61 Obviously now the value of set E shows the complete parameters of periodical as well as frequency existence of forms of circuit functions ... Another method of logic synthesis of 59 Table 3. Circuit function with input state R 3, ε of RS - FF - Counter with k = 6, ε = 0 to 64, in which: P is the periodical...
Ngày tải lên : 14/03/2014, 13:20
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comparison of single and binary oxide moo3, tio2 and wo3 sol – gel gas sensors

comparison of single and binary oxide moo3, tio2 and wo3 sol – gel gas sensors

... di Brescia, Via Valotti 9, I-25133 Brescia, Italy e Department of Chemistry and Materials, University of L'Aquila, 67040 L'Aquila, Italy f Department of Physics, University of L'Aquila, ... been used in the ®eld of catalysis for oxidation reactions of hydrocarbons [7]. MoO 3 has a bandgap of 3.2 eV and electrical resistivity at room tem- perature is of the ord...
Ngày tải lên : 19/03/2014, 16:47
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facile synthesis and characterization of novel nanocomposites

facile synthesis and characterization of novel nanocomposites

... 507–512 Facile synthesis and characterization of novel nanocomposites of titanate nanotubes and rutile nanocrystals Jiaguo Yu ∗ , Huogen Yu State Key Laboratory of Advanced Technology for Materials Synthesis ... the tubular products because of the existence of a bending vibration of H O H at 1630 cm −1 , and a strong stretching vibration of O H Fig. 4. EDX spectrum of th...
Ngày tải lên : 19/03/2014, 16:48
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improved electrochromical properties of sol–gel wo3 thin films by doping

improved electrochromical properties of sol–gel wo3 thin films by doping

... the financial support of the project. The partial support of the High Technology Organization (HTO) of the Ministry of Industries and Mines is appreciated. The assistance of Mr. S. Rafiei for XPS ... gold concentrations of 0, 3.2 and 6.4 mol%. Optical properties of the samples were studied by UV–visible spectrophotometry in a range of 300–1100 nm. The optical density spectra of...
Ngày tải lên : 20/03/2014, 13:04
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sensor response of sol–gel multiwalled carbon nanotubes-tio2 composites

sensor response of sol–gel multiwalled carbon nanotubes-tio2 composites

... 2 Behaviour-type, sensor response, and times of adsorption/desorption of screen- printed and dip-coated films sensing a flux of 150 mL of N 2 with a charge of 1% NH 3 . Material Behavior-type SR (%) ... symbols) of Ti 3+ states. The size of titania particles are representative of crystallite size, and the arrow size illustrates the amount of charge transferred. 5. Conclusion T...
Ngày tải lên : 20/03/2014, 13:07
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synthesis of one-dimensional sno2 nanorods via a hydrothermal technique

synthesis of one-dimensional sno2 nanorods via a hydrothermal technique

... low-temperature aqueous synthesis of SnO 2 1D nanorods without the need of templates or surfactants. 2. Experimental details The SnO 2 nanorods were synthesized via a hydrothermal method, which is similar to the method ... The products consist of nanorods as well as nanoparticles. The diameters of SnO 2 nanorods are in the range of 100–150 nm with lengths of the order of...
Ngày tải lên : 20/03/2014, 13:08
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synthesis of single-crystalline hollow b-feooh nanorods via a controlled

synthesis of single-crystalline hollow b-feooh nanorods via a controlled

... the range of 70–110 nm and width in the range of 20–30 nm. In particular, a process mechanism has been revealed for synthesis of single-crystalline b-FeOOH hollow nanorods: (i) formation of b-FeOOH ... Amine et al., 1999). Recently, a self sup- ported-pattern of oriented alignment of b-FeOOH nanowires fabricated through means of a Journal of Nanoparticle Research (2007) 9:30...
Ngày tải lên : 20/03/2014, 13:08
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