hydrothermal synthesis of uniform wo3 submicrospheres
hydrothermal synthesis of uniform wo3 submicrospheres
... image of the submicrospheres is shown in Fig. 3, revealing the similar morphological feature of the products as observed by SEM. Thiourea is widely used as a source of sulfur in the hydrothermal synthesis ... www.sciencedirect.com www.elsevier.com/locate/matchar this paper, we report a hydrothermal synthesis of uniform WO 3 submicrospheres using thiourea as an assistant...
Ngày tải lên: 20/03/2014, 13:04
hydrothermal synthesis of monodisperse wo3 - h2o square platelet particles
... 2006 Abstract Monodisperse 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 Na 2 WO 4 aqueous ... patterning of the EC materials. Monodisperse particles are particularly expected to give sharp distributions of properties such as response time, precise controls of...
Ngày tải lên: 19/03/2014, 16:48
large-scale hydrothermal synthesis of wo3 nanowires in the presence of k2so4
... Large-scale hydrothermal synthesis of WO 3 nanowires in the presence of K 2 SO 4 Xu Chun Song a, ⁎ , Yi Fan Zheng b , E. Yang a , Yun Wang a a Department of Chemistry, Fujian Normal ... size- dependent properties of 1D nanostructured tungsten oxide itself as well as of inorganic derivatives prepared from the oxide. Recently, the hydrothermal synthesis of ultralong and sing...
Ngày tải lên: 20/03/2014, 13:04
synthesis, growth mechanism and room-temperature blue luminescence emission of uniform wo3 nanosheets with w as starting material
... large-scale synthesis of WO 3 nanosheets. Obviously, metal tungsten (W) is the ideal tungsten source for the preparation of WO 3 . However, up to now, no one has reported the synthesis of WO 3 nanosheets ... hydrogen peroxide (H 2 O 2 ) [35,36]. In a typical synthesis, 6.5 g of W powder was dissolved into a mixed solution of 40.0 mL of H 2 O 2 and 4.0 mL of H 2 O with an ic...
Ngày tải lên: 20/03/2014, 13:08
a rapid hydrothermal synthesis of rutile sno2 nanowires
... www.elsevier.com/locate/mseb A rapid hydrothermal synthesis of rutile SnO 2 nanowires O. Lupan a,b,∗ , L. Chow a , G. Chai c , A. Schulte a ,S.Park a , H. Heinrich a,d a Department of Physics, University of Central Florida, ... Sn(OH) 2− 6 anions. Sn(OH) 4 hydrothermal condition −→ SnO 2 + 2H 2 O (7) (Sn(OH) 6 ) 2− hydrothermal condition −→ SnO 2 + 2H 2 O + 2OH − (8) The concent...
Ngày tải lên: 19/03/2014, 16:47
hydrothermal synthesis of na2ti6o13 and tio2 whiskers
... Journal of Crystal Growth 275 (2005) e2371–e2376 Hydrothermal synthesis of Na 2 Ti 6 O 13 and TiO 2 whiskers Dong-Seok Seo a , Hwan Kim a , Jong-Kook Lee b,Ã a School of Materials Science ... purification, decomposition of NO x and improvement of living conditions by removal of various pollutants, etc. [19–21]. In this paper, we also demonstrated the preparation of TiO 2 whis...
Ngày tải lên: 20/03/2014, 13:04
hydrothermal synthesis of tio2 nanofibres
... Hydrothermal synthesis of TiO 2 nanofibres Fei-Bao Zhang, Hu-Lin Li ⁎ College of Chemistry and Chemical Engineering, Lanzhou University, ... March 2006 Abstract TiO 2 nanofibres were synthesized by the hydrothermal method. The result shows that the growth of TiO 2 nanofibres is sensitive to the concentration of NaOH and the heating temperature. © ... report a novel strategy to s...
Ngày tải lên: 20/03/2014, 13:04
hydrothermal synthesis of tungsten oxide nanobelts
... Hydrothermal synthesis of tungsten oxide nanobelts Xuchun Song a, ⁎ , Yang Zhao b , Yifan Zheng c a Department of Chemistry, Fujian Normal University, ... Na 2 S and CTAB as assisted by a hydrothermal method at 180 °C. This strategy may offer an opportunity for the further investigation of some fundamental properties of 1D tungsten oxides and may ... TEM, (d) TEM images of WO...
Ngày tải lên: 20/03/2014, 13:04
low temperature hydrothermal synthesis of monodispersed flower - like titanate nanosheets
... [1,19], due to the fact that the synthesis of these TiO 2 nanomaterials offer fundamental scientific opportunities for investigating the influence of size and dimensionality of materials with respect ... In our previous work, we have reported the synthesis of spherical TiO 2 nanosheets (flower-like morphology composed of nano- sheets) via simple hydrothermal synthesis using tit...
Ngày tải lên: 20/03/2014, 13:04
controllable hydrothermal synthesis of zno nanowires arrays on al-doped zno
... www.elsevier.com/locate/apsusc Controllable hydrothermal synthesis of ZnO nanowires arrays on Al-doped ZnO seed layer and patterning of ZnO nanowires arrays via surface modification of substrate Jin ... by a hydrothermal process. Effects of the temperature and growth time of the hydrothermal process on morphological a...
Ngày tải lên: 06/05/2014, 13:22