Báo cáo hóa học: " Structure and Photoluminescent Properties of ZnO Encapsulated in Mesoporous Silica SBA-15 Fabricated by Two-Solvent Strategy" doc
Báo cáo hóa học: " Structure and Photoluminescent Properties of ZnO Encapsulated in Mesoporous Silica SBA-15 Fabricated by Two-Solvent Strategy" doc
... calcined at 650 °C exists in form of the crystalline ZnO wurtzite phase. ZnO in the 20 wt% ZnO/ SBA-15 nanocomposite calcined at 500 °C exists in form of the non-crystalline ZnO phase or ZnO clusters.Veprˇek ... highloadings of ZnO keeps well ordered hexagonal mesoporous structure of SBA-15. ZnO in the ZnO/ SBA-15 nanocom-posite calcined at 500 °C exists in form of non-crystallineclusters distributed in the ... thesynthesis of zinc oxide encapsulated in mesoporous silica SBA-15 by the two-solvent method has not been studied sofar. In our present work, we prepared a nanocomposite of ZnO clusters supported in mesoporous...
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Báo cáo hóa học: " Magnetic and Cytotoxicity Properties of La12xSrxMnO3 (0 £ x £ 0.5) Nanoparticles Prepared by a Simple " pptx
... estimated fromXRD line-broadening (Table 1 and Fig. 2). The corre-sponding SAED patterns, given as insets in Fig. 5, showspotty ring patterns suggesting a polycrystalline structure in all the prepared ... observation of lattice fringes of the rhombohedral structure of LSMOphase in the samples for x = 0.1 and 0.2 from HRTEM(insets in Fig. 5) also confirms the transformation of crystal structure ... 0.4, and 0.5 by asimple thermal decomposition method by using acetatesalts of La, Sr, and Mn as starting materials in aqueoussolution. To obtain the LSMO nanoparticles, thermaldecomposition of...
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Báo cáo toán học: " Structure and electrical properties of sputtered TiO2/ZrO2 bilayer composite dielectrics upon annealing in nitrogen" pdf
... study and participated in its design and coordination. CY participated in the revision of the manuscript. LPS and YW participated in the preparation of the TiO2/ZrO2bilayer thin film. JQZ and ... affected by the annealing tem-perature. Normally, for a composite thin film, the dielec-tric constant is mainly dependent on the component of the film and the microstructure including the crystallin ... the structure characterization of the TiO2/ZrO2bilayer thin film. All authors read and approved the finalmanuscript.Competing interestsThe authors declare that they have no competing interests.Received:...
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Báo cáo hóa học: " Synthesis and magnetic properties of Zr doped ZnO Nanoparticles" docx
... Li [20,21], C [22], Er[23]-doped ZnO. However, until now there is no con-sensusontheoriginofFMindopingZnO,soweresearched the ori gin of RTFM in the doping ZnO materials, it was hoped that we ... observed in In-doped ZnO nanowires, whichmay be associated with oxygen vacancies induced by In doping [36]. In our system, the pure ZnO NPs show thePM behavior, but all of the other doping samples ... participated in the data analysis and the interpretation of the results. All authors have been involved in revising the manuscript,read and approved the final manuscript.Competing interestsThe...
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Báo cáo hóa học: " Structural and physical properties of antibacterial Ag-doped nano-hydroxyapatite synthesized at 100°C" pptx
... the pH of P-containing solu-tion was adjusted to 10 with NH3 and stirred continu-ously for 30 min. The P-containing solution was addeddrop -by- drop into the [Ca + Ag]-containing solutionandstirredfor2handthepHwas ... of hydroxyapatite. XPSresults provide the additional evidence for the successfuldoping of Ag+, in Ag:HAp.The inhibition of bacteria containing different concen-trations of HAp (x = 0) and ... outer sur-face of the c oating and will be quickly depleted in vivo/ in vitro without long-term antibacterial effect. In orderto achieve the continuous release of Ag, HAp coatingsdoped with...
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Báo cáo hóa học: "Fabrication and magnetic properties of granular Co/porous InP nanocomposite materials" ppt
... matrix and thereby may provide a new avenue for nanofabrication.With the increasing deposition time of Co, the size or con-tent of granular Co embedded in the InP templateincreases, and the m agnetic ... Basic Research Project of 08JC1411000, the Research fund forthe Doctoral Program of Higher Education of Chain, and the GraduateInnovative Ability Training Special Fund of Shanghai Jiao Tong ... perpendicular and parallel aresheared as shown in Figure 5, indic ating the existence of inter-particle interactions, which is also manifested by the low squareness ratios, (Mr/Ms)⊥=0.3 4and( Mr/Ms)//=...
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Báo cáo hóa học: " Electronic and magnetic properties of SnO2/CrO2 thin superlattices" doc
... orbitalappearing in the gap region, characterizing a metallic-likebehavior for the majo rity sp in and a semiconductor-likebehavior for the minority spin. The band structures of theSL for spin up and ... density of states(PDOS) for the Cr-d orbital, (c) Band structure, for spin up and spin down, along the main symmetry lines of the SL BZ. The Fermi level, EF, is setto zero in (a), (b), and (c).-9-6-30369-40-30-20-1001020304001234Density ... ab initio calculations, participated in the analysis, and drafted the manuscript. LS and PB conceived of the study. HA, ES, LA, and LS participated in the analysis and in the production of a final...
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Báo cáo hóa học: " Synthesis and Photoluminescence Properties of Porous Silicon Nanowire Arrays" pdf
... with the porosity and takes upthe leading place of the PL spectrum, resulting in the‘‘red-shift’’ observed. These porous SiNWs combine thephysical properties of SiNWs and PS and could lead toopportunities ... (&)Department of Materials Science and Engineering,Key Lab of Advanced Materials, Tsinghua University,100084 Beijing, People’s Republic of Chinae-mail: fengjy@mail.tsinghua.edu.cnY. WangInstitute of ... 30 min, d–f 60 min,g–i 90 min, j–l 120 min,m–o 180 min. The inset in n isthe higher magnification imageas markedFig. 3 The lengths of theporous SiNWs depend ona H2O2concentrations and b...
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Báo cáo hóa học: " Synthesis and Magnetic Properties of Maghemite (c-Fe2O3) Short-Nanotubes" ppt
... incorporated sulfate ions in the preparing process, corre-sponding to the one band of the v1 mode and two bands of the v3 mode (C3vsymmetry), respectively [24]. The ATR-FTIR spectra of ... (1D) nanostructures are very appealing,owing to many unique physical and chemical properties based on their high intrinsic anisotropy and surface activity[4, 5]. Especially, understanding the ... themagnetic properties of c-Fe2O3SNTs are strongly in u-enced by the morphology of the crystal. The unique mag-netic behaviors were interpreted by the competition of thedemagnetization energy of...
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báo cáo hóa học:" Structural and optical properties of a radio frequency magnetron-sputtered ZnO thin film with different growth angles" pdf
... study introduces optical properties of a columnar structured zinc oxide [ZnO] antireflection coating for solarcells. We obtained ZnO films of columnar structure on glass substrates using a specially ... be increased by around 10%. In general, the refractiv e index of a thin film is variableaccording to the kind of material and thickness of thefilms. It is addressed that a medium refractive index ... largest grain size of 59.01 nm, and the 0° angled columnar structured filmhad the lowest grain size of 25.95 nm. These resultsshowed that intensity and grain sizes varied according tothe growth...
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