Báo cáo hóa học: " Facile synthesis of monodisperse ZnS capped CdS nanocrystals exhibiting efficient blue emission" docx
Báo cáo hóa học: " Facile synthesis of monodisperse ZnS capped CdS nanocrystals exhibiting efficient blue emission" docx
... (3.90).Preparation of CdS /ZnS nanocrystals (1) Synthesis of 4 nm CdS nanocrystals One millimole of cadmium stearate, 2 mmol of stearic acid, 4 mmol of oleylamine and 13.4 g of oc-tadecene were ... 1:62–67DOI 10.1007/s11671-006-9001-0123NANO EXPRESS Facile synthesis of monodisperse ZnS capped CdS nanocrystals exhibiting efficient blue emissionMyriam Protie`re Æ Peter ReissPublished ... thespectral region of 440–480 nm.Fig. 4 Bottom: Powder X-ray diffractogram of the CdS /ZnS nanocrystals. Top: XRD patterns of the sample, of wurtzite CdS (JCPDS file 80-0006) and of wurtzite ZnS (80-0007)Fig....
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Báo cáo hóa học: " Facile Synthesis of Monodisperse CdS Nanocrystals via Microreaction" pot
... the synthesis of monodisperse CdS NCs in the size range of 3.0–5.4 nm,and the NCs produced photoluminescent emissions in therange of 391–463 nm.Keywords Microreaction Á Quantum dots Á CdS Á Nanocrystals IntroductionThe ... subsequenttreatment of these NCs resulted in considerable improve-ment of PL efficiency. In these cases, the inefficient heatand mass transfer of batch reactors constrained the eco-nomical synthesis of CdS ... monodisperse (HWHM*11 nm) CdS NCscan be obtained with a high volume ratio of OA of 51.2%,and the size of the CdS NCs were in the range of 4.5–5.3 nm in the microreaction. The efficient mixing and...
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Báo cáo hóa học: " Facile synthesis of nano-Li4Ti5O12 for high-rate Li ion battery anodes" doc
... Zhou H: Effect of particle dispersion on high rate performance of nano-sized Li4Ti5O12 anode. Electrochimica Acta 2007, 52:6470. 2. Kavana L, Grätzel M: Facile synthesis of nanocrystalline ... typical FESEM and HRTEM images of the Li4Ti5O12 powders prepared through the solid-state process. Small and uniformly sized Figure 4Figure 21 Facile synthesis of nano-Li4Ti5O12 for ... YH et al.) Figure 4. Electrochemical performance of Li4Ti5O12. (a) A cyclic voltammogram of Li4Ti5O12. (b) Charge-discharge profiles of Li4Ti5O12 powders prepared through the solid-state...
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báo cáo hóa học:" Facile synthesis of uniform large-sized InP nanocrystal quantum dots using tris(tert-butyldimethylsilyl)phosphine" pdf
... hexane. Synthesis of InP /ZnS For in situ fabrication of InP /ZnS core-shell NQDs, the temperature of the growth solution of InP was lowered after a 10-min growth to 200°C. Thirty milligrams of ZDC, ... One-pot synthesis of core-shells and their optical properties. (a) One-pot synthesis of InP with P(SiMe2-tert-Bu)3 followed by ZnS shell overcoating. (b) Size-tunable emission from InP /ZnS ... P precursor for InP synthesis by Peter Reiss's group [9]. In the synthesis of high-quality InP or InP /ZnS NQDs in terms of size uniformity and crystallinity, a choice of an indium [In]...
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Báo cáo hóa học: " Facile Synthesis of Novel Nanostructured MnO2 Thin Films and Their Application in Supercapacitors" pptx
... on the surface of MnO2andalso possible intercalation/deintercalation of H?and alka-line metal cations in the bulk of MnO2[29]. Since the 3-Ddandelion-like microspheres of the sample A ... smaller feature of the micro-spheres. The excellent cycling stability and good ratecapability of the film composed of dandelion-like micro-spheres coupled with the simple and low cost synthesis method ... lm) of a-MnO2can be obtained by the reactionbetween MnSO4and (NH4)2S2O8with the addition of AgNO3catalyst at RT for 1–2 days. The thin shell of thisstructure is composed of nanorods,...
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Báo cáo hóa học: " Facile Synthesis of Ternary Boron Carbonitride Nanotubes" ppt
... dominatingpeaks of B, C, and N with a low level of O, Cu, and Si. Theexistence of Cu peak should be caused by the copper TEMFig. 1 a Low-magnificationSEM image of the product,showing the large quantity of the ... of B2O2,C2H5OH, N2, and H2(Fig. 5a). The involving species of B and C could lead tothe further decrease of the melting temperature of stainlesssteel and promotes the formation of ... growth of the B–C–N nanotubes.Acknowledgments The authors acknowledge financial supportfrom the National Natural Science Foundation of China (NSFC, GrantNo. 50862001), Ministry of Education of...
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Báo cáo hóa học: " Facile Synthesis of ZnO Nanorods by Microwave Irradiation of Zinc–Hydrazine Hydrate Complex Denthaje Krishna Bhat" pot
... containFig. 1 XRD of ZnO nanorodsFig. 2 XRD of precursorcomplex32 Nanoscale Res Lett (2008) 3:31–35123NANO EXPRESS Facile Synthesis of ZnO Nanorods by Microwave Irradiation of Zinc–Hydrazine ... nanomaterial.ConclusionsA facile route for the synthesis of ZnO nanorod bymicrowave irradiation method has been reported. Themethod offers a very simple and low cost route for theproduction of ZnO nanorods. ... material because of itswide band gap of 3.37 eV and high mechanical and ther-mal stabilities at room temperature [4]. The strong excitonbinding energy of ZnO is much larger than that of GaN andthe...
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Báo cáo hóa học: " Template Synthesis of Three-Dimensional Cubic Ordered Mesoporous Carbon With Tunable Pore Sizes" docx
... typical synthesis of OMC-1, 0.113 g of boricacid (99.5 wt%), 0.625 g of sucrose (95 wt%), and 0.071 g of sulfuric acid (98 wt%) were dissolved in 2.5 g of dis-tilled water. After 0.5 g of KIT-6 ... hard template synthesis procedure of OMCsinvolves impregnation of the silica template, carbonization of the carbon precursor, and removal of the silica template[1]. The structure of the OMC, ... [11]modulated the pore sizes of mesoporous carbons within therange of 2–10 nm by changing the synthesis temperature of the silica template. However, the synthesis procedures of silica templates with...
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Báo cáo hóa học: "Facile Synthesis and Tensile Behavior of TiO2 One-Dimensional Nanostructures" doc
... lineardata fitting of the stress–strain curve ranged from 47 to89 GPa, with an average value of *56 GPa. Sample #3was noticed to have a smallest value of diameter but ahighest value of Young’s modulus, ... the effectiveness of them was found to be in the order of Ni [ (Au,Ag) [ (Pd, Pt). While a catalytic material was used insyntheses, it can be detected from the tips of most of nano-structures ... introduction of 1 sccm O2intothe reaction chamber suppressed the growth of TiO2nanostructures, but enhanced the formation of polycrys-talline TiO2film. Similar results have been seen fromgrowth of...
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Báo cáo toán học: " Facile synthesis of uniform large-sized InP nanocrystal quantum dots using tris(tert-butyldimethylsilyl)phosphine" pptx
... hexane. Synthesis of InP /ZnS For in situ fabrication of InP /ZnS core-shell NQDs, the temperature of the growth solution of InP was lowered after a 10-min growth to 200°C. Thirty milligrams of ZDC, ... One-pot synthesis of core-shells and their optical properties. (a) One-pot synthesis of InP with P(SiMe2-tert-Bu)3 followed by ZnS shell overcoating. (b) Size-tunable emission from InP /ZnS ... electron microscope [TEM] image of an InP NC with mean diameters of 2.14 nm, exhibiting a quantum yield of approximately 28%. The diameters of at least 100 nanocrystals were counted for each...
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