Temperature-Controlled Growth of Silicon-Based Nanostructures by Thermal Evaporation of SiO Powders

Temperature-Controlled Growth of Silicon-Based Nanostructures by Thermal Evaporation of SiO Powders

Temperature-Controlled Growth of Silicon-Based Nanostructures by Thermal Evaporation of SiO Powders

. Temperature-Controlled Growth of Silicon-Based Nanostructures by Thermal Evaporation of SiO Powders Z. W. Pan, † Z. R. Dai, † L. Xu, ‡ S. T. Lee, ‡, * and Z. L. Wang* ,†,§ School of Materials. results. 4. Discussion The results described in Section 3 show that, by thermal evaporation of SiO powders at 1350 °C for 5 h under 300 Torr ofa5%H 2- Ar gas mixture at a flow rate of 50 sccm, Si-contai...
Ngày tải lên : 16/03/2014, 15:30
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Sulfide assisted growth of silicon nano wires by thermal evaporation of sulfur powders

Sulfide assisted growth of silicon nano wires by thermal evaporation of sulfur powders

. (2004) 278–281 Sulfide-assisted growth of silicon nano-wires by thermal evaporation of sulfur powders Junjie Niu a , Jian Sha a,b , Deren Yang a, * a State Key Lab of Silicon Materials, Zhejiang. 2004 Abstract Silicon nanowires (SiNWs) with a diameter of B20 nm were synthesized by the thermal evaporation of sulfur powders on silicon wafers. The source of the SiNWs came from the silicon substra...
Ngày tải lên : 16/03/2014, 15:21
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Large scale synthesis, characterization and photoluminescence properties of amorphous silica nanowires by thermal evaporation of silicon monoxide

Large scale synthesis, characterization and photoluminescence properties of amorphous silica nanowires by thermal evaporation of silicon monoxide

. growth of SiO 2 nanowires is discussed on the basis of tiny SiO 2 cluster formation via direct reaction of SiO vapors with O 2 that subsequently acts as nucleation center for SiO 2 nanowire growth. ARTICLE. we report large-scale synthesis of pure silica (SiO 2 ) nanowires by a non-catalytic approach based on thermal evaporation of SiO under argon ambient with traces of oxygen. The proce...
Ngày tải lên : 16/03/2014, 15:18
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Silicon nanowires fabricated by thermal evaporation of silicon monoxide

Silicon nanowires fabricated by thermal evaporation of silicon monoxide

. diameter of ∼30 nm and length of tens of micrometers on Al 2 O 3 templates and silicon wafers were synthesized by the thermal evaporation of silicon monoxide (SiO) . The SiNWs were measured by transmission. structure [20]. Some SiO 2 and -Al 2 O 3 came from the decomposition of SiO and the Al 2 O 3 substrate, respectively. Fig. 1. TEM images of the SiNWs produced by thermal evaporation of SiO...
Ngày tải lên : 16/03/2014, 15:21
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Morphology and growth mechanism study of self assembled silicon nanowires synthesized by thermal evaporation

Morphology and growth mechanism study of self assembled silicon nanowires synthesized by thermal evaporation

. results in the formation of SiNWs made of a Si core and a SiO 2 sheath. The one-dimensional growth of SiNWs is facili- tated by the SiO 2 sheath that con®nes the lateral growth of SiNWs, and the high. and `mushroom'-shaped particles have been observed by electron microscopies. The SiNWs were synthesized by thermal evaporation of SiO powders without any metal cata- lysts. The SiNWs grow...
Ngày tải lên : 16/03/2014, 15:06
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Báo cáo khoa học: Simultaneous improvement of catalytic activity and thermal stability of tyrosine phenol-lyase by directed evolution ppt

Báo cáo khoa học: Simultaneous improvement of catalytic activity and thermal stability of tyrosine phenol-lyase by directed evolution ppt

. mutation of Thr15 to Ala in the vicinity of the hydrophobic core induces a tighter binding of the cofactor in C. freundii TPL, thereby reducing the decomposition rate of the cofactor by a Pictet–Spen- gler. in 200 mL of LB medium containing 100 lgÆmL )1 of ampicil- lin. The cells were then suspended in 5 mL of NaCl ⁄ P i , mixed with an equal volume of Cellytic BÔ, treated for 30 min with 20 l...
Ngày tải lên : 07/03/2014, 00:20
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controllable growth offlowerlike zno nanostructures by combining laser direct

controllable growth offlowerlike zno nanostructures by combining laser direct

... process of 3D flowerlike ZnO nanostructures: deposition of a PMMA layer on a GaN/LiALO 2 substrate, laser processing and hydrothermal growth of ZnO nano- structure. The right side shows a CCD image of ... hydrothermal growth was developed for the synthesis of flowerlike three-dimensional (3D) ZnO nanostructures. By controlling the parameters of hydrothermal syn- thesis (reac...
Ngày tải lên : 06/05/2014, 13:22
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Treatment of Textile Wastewater by a Coupling of Activated Sludge Process with Membrane Separation

Treatment of Textile Wastewater by a Coupling of Activated Sludge Process with Membrane Separation

. minutes Fig. 4. Effect of backflush interval on the flux, MLSS of 8700 mg/l, TMP of 0.4 bar, CFV of 0.88 m/s, backflushing pressure of 1.5 bar and backflushing interval of 1 s. 22 23 24 25 26 0. bar Fig. 5. Effect of backflush pressure on the flux, MLSS of 8700 mg/l, TMP of 0.4 bar, CFV of 0.88 m/s, backflushing pressure of 1.5 bar and backflushing interval of 1 s. Main exper...
Ngày tải lên : 05/09/2013, 09:08
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Báo cáo khoa học: Inhibition kinetics of catabolic dehydrogenases by elevated moieties of ATP and ADP – implication for a new regulation mechanism in Lactococcus lactis potx

Báo cáo khoa học: Inhibition kinetics of catabolic dehydrogenases by elevated moieties of ATP and ADP – implication for a new regulation mechanism in Lactococcus lactis potx

. 2). Discussion The inhibition kinetics of LDH, ADH and GAPDH of L. lactis ATCC 19435 investigated might be a result of various isozymes of each of these dehydro- genases because of the use of cell. influenced by any of the combinations of inhibitors. A similar conclusion can be drawn for the combination of ADP + NAD for ADH, whereas there was a slight increase in inhibi- tion of ADH by the. non...
Ngày tải lên : 29/03/2014, 08:20
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Synthesis and photoluminescence property of silicon carbon nanowires synthesized by the thermal evaporation method

Synthesis and photoluminescence property of silicon carbon nanowires synthesized by the thermal evaporation method

. nanowires by heat-activated carbon with SiO powders using anodic aluminum oxide (AAO) template without any metal catalyst. SiO powders cannot react with activated carbon directly because of AAO. Schematic illustration of synthesized b-SiC nanowires. Fig. 2. SEM image of the nanoporous AAO template surface. Fig. 3. SEM image of b-SiC nanowires synthesized by thermal evaporation: (a) with. of SiC...
Ngày tải lên : 16/03/2014, 15:21
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