hydrothermal synthesis of tio2 nanofibres

... March 2006AbstractTiO2 nanofibres were synthesized by the hydrothermal method. The result shows that the growth of TiO2 nanofibres is sensitive to theconcentration of NaOH and the heating ... Hydrothermal synthesis of TiO2 nanofibres Fei-Bao Zhang, Hu-Lin Li⁎College of Chemistry and Chemical Engineering, Lanzhou University, ... report a novel strategy to synthesize TiO2 nanofibres under hydrothermal conditions in alkaline solution.Compared with the other reporters who use hydrothermal me-thod to synthesize TiO2,...

hydrothermal synthesis of na2ti6o13 and tio2 whiskers

... Journal of Crystal Growth 275 (2005) e2371–e2376 Hydrothermal synthesis of Na2Ti6O13and TiO2whiskersDong-Seok Seoa, Hwan Kima, Jong-Kook Leeb,ÃaSchool of Materials Science ... puriﬁcation, decomposition of NOxand improvement of living conditions byremoval of various pollutants, etc. [19–21]. In thispaper, we also demonstrated the preparation of TiO2whisker by extracting ... powder made of TiO2spherical particleswas hydrothermally treated in an autoclave at200 1C for various times. Fig. 2 demonstrates themicrostructural evolution of TiO2particles withhydrothermal...

a rapid hydrothermal synthesis of rutile sno2 nanowires

... www.elsevier.com/locate/msebA rapid hydrothermal synthesis of rutile SnO2nanowiresO. Lupana,b,∗, L. Chowa, G. Chaic, A. Schultea,S.Parka, H. Heinricha,daDepartment of Physics, University of Central Florida, ... Sn(OH)2−6anions.Sn(OH)4 hydrothermal condition−→ SnO2+ 2H2O (7)(Sn(OH)6)2− hydrothermal condition−→ SnO2+ 2H2O + 2OH−(8)The concentration of tin ions in solution is of inﬂuencing to thediameter of ... investigated the synthesis of SnO2nanowires/nanoneedlesby a low-temperature (95–98◦C) hydrothermal method. The as-grown SnO2nanowires have diameters of 50–150 nm and lengths of 10–100 ␮m....

hydrothermal synthesis of monodisperse wo3 - h2o square platelet particles

... 2006AbstractMonodisperse particles of tungsten(VI) oxide monohydrate were prepared in a hydrothermal system at 40 °C, where 20 ml of HCl solution(1.50 mol/l) was added to the same volume of Na2WO4aqueous ... patterning of the EC materials. Monodisperseparticles are particularly expected to give sharp distributions of properties such as response time, precise controls of properties,regular arrangement of ... on electrode, etc. Hydrothermal synthesis from Na2WO4in a low pH region isone of the typical ways to prepare tungsten oxide hydrates.Freedman [5] investigated influence of acid concentration...

hydrothermal synthesis of tungsten oxide nanobelts

... Hydrothermal synthesis of tungsten oxide nanobeltsXuchun Songa,⁎, Yang Zhaob, Yifan ZhengcaDepartment of Chemistry, Fujian Normal University, ... Na2S and CTAB as assistedby a hydrothermal method at 180 °C. This strategy may offer anopportunity for the further investigation of some fundamentalproperties of 1D tungsten oxides and may ... TEM, (d) TEM images of WO3nanobelts.Fig. 2. EDS patterns of WO3nanobelts. Fig. 3. XRD patterns of WO3nanobelts.3406 X. Song et al. / Materials Letters 60 (2006) 3405–3408 of WO3synthesized...

hydrothermal synthesis of uniform wo3 submicrospheres

... 3,revealing the similar morphological feature of the products asobserved by SEM.Thiourea is widely used as a source of sulfur in the hydrothermal synthesis of transition metal sulfides [13–15].However, ... proceeding of the reaction. Such self-assembly of nanoparticles is favorable to decrease the surface energy of the system.Fig. 2 – SEM images of the samples prepared by thiourea-assisted hydrothermal ... ExperimentalAll of the chemical reagents used in the experiment were of analytical grade. The detailed synthesizing process was asfollows: 10 g of Na2WO4·2H2O was resolved in 50 ml of distilledwater,...

large-scale hydrothermal synthesis of wo3 nanowires in the presence of k2so4

... Large-scale hydrothermal synthesis of WO3nanowiresin the presence of K2SO4Xu Chun Songa,⁎, Yi Fan Zhengb, E. Yanga, Yun WangaaDepartment of Chemistry, Fujian Normal ... size-dependent properties of 1D nanostructured tungsten oxide itselfas well as of inorganic derivatives prepared from the oxide.Recently, the hydrothermal synthesis of ultralong and single-crystalline ... past few years, much effort has been devoted to the synthesis of semiconductor nanowires, nanorods, and nanobelts,because of the importance of understanding the dimensionalityconfined transport...

low temperature hydrothermal synthesis of monodispersed flower - like titanate nanosheets

... [1,19], due to the factthat the synthesis of these TiO2nanomaterials offer fundamentalscientiﬁc opportunities for investigating the inﬂuence of size anddimensionality of materials with respect ... Inour previous work, we have reported the synthesis of sphericalTiO2nanosheets (ﬂower-like morphology composed of nano-sheets) via simple hydrothermal synthesis using titanium butoxideas starting ... Preparation of titanate nanosheetsMonodispersed spherical titanate nanosheets were prepared by hydrothermal treatment in ammonia solution. An amount of 0.3 g of AS was suspended in 60 ml of ammonia...

solvent-controlled synthesis of tio2 1d nanostructures growth mechanism and characterization

... Solvent-controlled synthesis of TiO21D nanostructures: Growth mechanismand characterizationKajari DasÃ, Subhendu K. Panda, Subhadra ChaudhuriDepartment of Materials Science and DST Unit of Nanoscience, ... diffusionprocess and the chemical reactivity of the reactants are greatlyenhanced. The detailed studies of the effect of different organicsolvents on the morphologies of the TiO2nanocrystals undersolvothermal ... S1.Likewise, to investigate the effect of the co-solvent on themorphology and the properties of TiO2nanostructures, 19.2 g of NaOH was dissolved in 48 ml mixed solvent of water and anorganic solvent...

controllable hydrothermal synthesis of zno nanowires arrays on al-doped zno

... www.elsevier.com/locate/apsuscControllable hydrothermal synthesis of ZnO nanowires arrays on Al-doped ZnOseed layer and patterning of ZnO nanowires arrays via surface modiﬁcation of substrateJin ... by a hydrothermal process. Effects of the temperature and growth time of the hydrothermal process on morphological andphotoluminescence properties of the ... different hydrothermal temperatures that thelength of the ZnO-NWZ increases and the diameter of the ZnO-NWZenlarge extremely with the increase of the hydrothermal ...

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