low temperature hydrothermal synthesis of monodispersed flower - like titanate nanosheets

low temperature hydrothermal synthesis of monodispersed flower - like titanate nanosheets

low temperature hydrothermal synthesis of monodispersed flower - like titanate nanosheets

... 2008 Keywords: Titania Flower- like Sphere Nanosheets Template-free Hydrothermal abstract Monodispersed flower -like titanate superstructure was successfully prepared by simple hydrothermal process ... AS (d) Flower- like TiO 2 (calcined 500 o C) (c) Flower- like titanate Fig. 6. Photocatalytic H 2 evolution from water splitting reaction over (a) ST-01 (anatase powder),...
Ngày tải lên : 20/03/2014, 13:04
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a rapid hydrothermal synthesis of rutile sno2 nanowires

a rapid hydrothermal synthesis of rutile sno2 nanowires

... SnO 2 nanowires at low temperature for 15–20 min. We investigated the synthesis of SnO 2 nanowires/nanoneedles by a low- temperature (95–98 ◦ C) hydrothermal method. The as- grown SnO 2 nanowires ... reported a low- temperature hydrothermal synthesis of SnO 2 nanorods at 160 ◦ C, but the process requires at least 12h. Vayssieres and Graetzel [15] reported SnO 2 nanorods...
Ngày tải lên : 19/03/2014, 16:47
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hydrothermal synthesis of monodisperse wo3 - h2o square platelet particles

hydrothermal synthesis of monodisperse wo3 - h2o square platelet particles

... Okawa a a Graduate School of Science and Technology, Chiba University, Yayoicho 1-3 3, Inageku, Chiba 26 3-8 522, Japan b Faculty of Engineering, Chiba University, Yayoicho 1-3 3, Inageku, Chiba 26 3-8 522, Japan Received ... etc. Hydrothermal synthesis from Na 2 WO 4 in a low pH region is one of the typical ways to prepare tungsten oxide hydrates. Freedman [5] investigate...
Ngày tải lên : 19/03/2014, 16:48
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hydrothermal synthesis of na2ti6o13 and tio2 whiskers

hydrothermal synthesis of na2ti6o13 and tio2 whiskers

... structures of alkali-metal titanates, A 2 Ti n O 2n+1 are well-known. All of them have a monoclinic structure with almost the same b value [4,8]. Alkali-metal titanates with a high alkali- metal ... 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 Sc...
Ngày tải lên : 20/03/2014, 13:04
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hydrothermal synthesis of tio2 nanofibres

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, ... 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. © ... synthesize TiO 2 nanofibres unde...
Ngày tải lên : 20/03/2014, 13:04
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hydrothermal synthesis of tungsten oxide nanobelts

hydrothermal synthesis of tungsten oxide nanobelts

... Song). 016 7-5 77X/$ - see front matter © 2006 Elsevier B.V. All rights reserved. doi:10.1016/j.matlet.2006.03.022 The composition of the product was an alyzed by energy dis- persive X-ray detector ... during the hydrothermal reaction. From the re- sults, it can be concluded that addition of Na 2 S and CTAB at the same time is important and both of them affect corporately on the...
Ngày tải lên : 20/03/2014, 13:04
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hydrothermal synthesis of uniform wo3 submicrospheres

hydrothermal synthesis of uniform wo3 submicrospheres

... solu bility of WO 3 is influenced by the pH value of solution. In our experiments, the rod- shaped WO 3 particles could decompose into primary nano- particlesduetothechangeofpHvalueofthesolution caused ... self- assemble to submicroscale spheres with the proceeding of the reaction. Such self-assembly of nanoparticles is favorable to decrease the surface energy of the system. Fig. 2...
Ngày tải lên : 20/03/2014, 13:04
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large-scale hydrothermal synthesis of wo3 nanowires in the presence of k2so4

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

... particle size and low- temperature, cost-effective, and less-complicated techniques. Under hydrothermal conditions, many starting materials can undergo quite unexpected reactions, which are often accompanied ... al. [20]. The 1D nanostructure synthesis using inorganic salt instead of surfactant and water-soluble high molecule has strong points in non-pollution, low- cost, easy- clean...
Ngày tải lên : 20/03/2014, 13:04
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synthesis of pd or pt titanate nanotube and its application

synthesis of pd or pt titanate nanotube and its application

... Evaluation of sensor performance Fig. 9 shows the responses of typical sensors pre- pared with the compositions of (a) Pd and Pt /titanate nanotubes (30 wt%) + ␥-Al 2 O 3 (70 wt%), (b) titanate nan- otubes ... (2007) 320–325 Synthesis of Pd or Pt /titanate nanotube and its application to catalytic type hydrogen gas sensor Chi-Hwan Han a , Dae-Woong Hong a , Il-Jin Kim a , Jihye...
Ngày tải lên : 20/03/2014, 13:08
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Báo cáo y học: "Low temperature tolerance of human embryonic stem cells"

Báo cáo y học: "Low temperature tolerance of human embryonic stem cells"

... extended durations of 24h and 48h respectively. Cell survival after low temperature exposure was assessed through the MTT (Tetrazolium salt 3-( 4, 5-dimethylthiazol-2-yl )-2 , 5- diphenyltetrazolium ... expression of TRA- 1-8 1 was indicated by red fluores- cence under a wavelength of 570 nm (Rhoda- mine). The hESC colonies were assigned into 3 grades [9] ac- co...
Ngày tải lên : 31/10/2012, 16:57
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