synthesis and photo and electro luminescent properties of phosphorescent iridium and platinum containing polymers
DESIGN, SYNTHESIS AND PROPERTIES OF METAL COMPLEXES AND COORDINATION POLYMERS FOR 2+2 PHOTO CYCLOADDITION REACTIONS
... geometry of IV-1 with labels, H- 4-6 bonded chains, and packing of showing the alignment of 4spy ligands XVIII Figure 4-2 TGA and DTG of IV-1 4-7 Figure 4-3 4-10 H-NMR spectra of IV-2 before and after ... PSM of 3D MOF through solid state [2+2] photoreaction 1.6.3 Photoreactivity in metal complexes using monodentate ligand Compared to the bidentate ligands, photoreactivity of monodentate ligands ... particular C-Hπ and C-HX in solid state and their properties in solid state and their role in the design and synthesis of organic solids during his studies in the late 80’s and early 90’s showed...
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Large scale synthesis, characterization and photoluminescence properties of amorphous silica nanowires by thermal evaporation of silicon monoxide
... the metal particles, (ii) formation of liquid droplet of metal and Si/SiOx and (iii) the precipitation in the form of solid nanowires after super-saturation of liquid metal–Si/SiOx droplet at ... of crystalline Si core and amorphous SiO2 outer shell structure as confirmed by HRTEM image and SAED pattern On the other hand, the formation of crystalline Si–SiO2 core-shell nanowires first and ... agglomerated clusters consisting of high density of nanowires The magnified view of a single cluster is depicted in the inset of Fig 2(d) These observations suggest that growth of nanowires in the present...
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synthesis and optical properties of colloidal tungsten oxide nanorods
... and the intensity of this peak increases relative to that of UV emission as the length of nanorods increases A similar PL pattern with two emission maxima, yet at much lower energies of 2.8 and ... band gap due to impurities.22b In light of these assignments, we suggest that the UV emission of nanorod samples in this work might correspond to the band-toband transition The blue emission of ... preparation of soluble and highly crystalline tungsten oxide nanorods of varying lengths, which might be easily scaled up, as well as their photoluminescent behaviors at room temperature The simple and...
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synthesis, electrical measurement, and field emission properties of a-fe2o3 nanowires
... measure the electronic property of a single a-Fe2O3 NW and a-Fe2O3 film Figure 5a shows the schematic drawing of the CAFM measurement NWs were embedded in photoresist (PR) and only the tips of the ... the electronic resistivity of an a-Fe2O3 NW, and L and r represent the average length (800 nm) and radius (15 nm) of the NW, respectively We assumed that q (4.42 103 Xcm) is a constant for all of ... the resistance of the total NWs in a unit cm2 Fig A schematic graph of the formation of the a-Fe2O3 NWs in thin and thick iron Fig (a) Schematic illustration and (b) circuit diagram of conductive...
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synthesis, structure and magnetic properties of iron-doped tungsten oxide nanorods
... consisting of WO3 and W There are two characteristic binding energies (707.4 and 711.4 eV) for the photoelectron line of Fe 2p3/2, as illustrated in Fig The binding energies of 707.4 and 711.4 ... results indicate that most of the WO2 and part of the W could be oxidized to WO3 after air annealing at 573 K Iron and its oxide could be indexed in the XRD patterns of both samples However, the ... (0 1) of WO3, according to JCPDS card No 20-1324 Figs 2c and d also show that the thin layer covering the nanorods is in amorphous The thickness of the amorphous coatings and the size of the...
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Báo cáo khoa học: Expression and characterization of cyanobacterium heme oxygenase, a key enzyme in the phycobilin synthesis Properties of the heme complex of recombinant active enzyme potx
... maximum of the Soret band with a small absorption coefficient (Table 1) On the other hand, relative intensities of the 498 and 630 nm bands compared with those of the 575 and 535 nm bands in the ... [23], and Hem O, N meningitidis A 2855 [25] Soret and Q (a and b) bands of the oxy form and the CO-bound form not show specific differences from those of mammalian or bacterial HOs The small band ... addition of NADPH Shift of the Soret maximum to 410 nm and appearance of the 534 and 573 nm bands in the visible region indicate that the oxy complex of heme–Syn HO-1 is produced within and accumulated...
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Báo cáo " Synthesis and thermoelectric properties of La(Fe1-xSix)13 compounds (x = 0.12, 0.14 and 0.15) " pptx
... and 18% for x = 0.12 and 0.14, respectively Finally, the thermal conductivity (κ) of La(Fe1-xSix)13 (x = 0.12, 0.14 and 0.15) compounds is shown in Fig For general, the thermal conductivity of ... dependence of the thermal conductivity of La(Fe1-xSix)13 compounds The thermoelectric properties of La(Fe1-xSix)13 compounds at room temperature are listed in Table 1, together with the data of other ... properties of La(Fe1-xSix)13 compounds have been investigated below 300 K The values of thermopower and lattice conductivity are small Thermal conductivity is large The dimensionless figure of...
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controlled synthesis and gas sensing properties of hollow sea urchin like
... best of our knowledge, this is the first report of the selective synthesis of ␣-Fe2 O3 superstructures and nanocubes The gassensing properties of the ␣-Fe2 O3 superstructures, nanocubes and nanoparticle ... surfaces The diameter of these pits is 5–9 nm The presence of the pits may be due to the decomposition of ␣-FeOOH and release of H2 O Fig 5a and b show SEM image and XRD pattern of the products obtained ... ethanol and (f) hydrogen of different concentrations at 350 ◦ C and relative humidity of 5–18% Table The linear equations and correlation factor for the chart of the logarithm of response of the...
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synthesis and optical properties of au-ag alloy nanoclusters with controlled composition, p26
... Thus the control of structural type and composition of bimetallic nanoparticles comprised of Ag and Au have been a subject of considerable interest; and the developed of simple and versatile methods ... an and bn, and are function of particle radius, and light wavelength λ (in terms of the Ricatti-Bessel functions) As the absorption band of noble metal nanoparticles is dominated by the free electron ... has been paid to the synthesis and characterization of bimetallic nanoparticles due to their unique catalytic, electronic, optical, structural and thermal properties [1-5] and subsequent technological...
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Báo cáo hóa học: " Synthesis and magnetic properties of Zr doped ZnO Nanoparticles" docx
... measurements and data analysis, and drafted the manuscript DG and DX made the conception and design of the manuscript ZZ2 carried out the XPS measurements and data analysis JLZ and ZZ1 participated ... http://www.nanoscalereslett.com/content/6/1/587 Page of Figure TEM and HRTEM images of Zn0.995Zr0.005O Nps (a) The representative TEM image of Zn0.995Zr0.005O and the inset is the SAED pattern (b) The HRTEM image of Zn0.995Zr0.005O ... Zhang ZH: Synthesis and magnetic properties of Cu-doped ZnO nanowire arrays Electrochim Acta 2009, 54:2392 16 Kim CO, Kim S, Oh HT, Choi SH, Shon Y, Lee S, Hwang HN, Hwang CC: Effect of electrical...
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Báo cáo hóa học: " Synthesis, magnetic and optical properties of core/shell Co1-xZnxFe2O4/SiO2 nanoparticles" pot
... optical properties of the ferrite nanoparticles for a variety of magneto-optical nanodevice applications From a synthesis point of view exploring the effect of firing temperatures (400°C, 600°C and ... objective of this study is to investigate the effect of Zn2+ partially substituting for Co2+ in CoFe2O4 nanoparticles (Co1-xZnxFe2O4; x = 0, 0.5, and 1) and shelling with silica on the magnetic and ... nanoparticles (zinc ferrite and cobalt zinc ferrite nanoparticles) This is due to the effect of the change of color on the optical properties of the ferrite nanoparticles from black at CoFe2 O4 , to brown...
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Báo cáo hóa học: " Wet chemical synthesis and magnetic properties of single crystal Co nanochains with surface amorphous passivation Co layers" pdf
... (Hc) of 355.8 and 93.6 Oe, respectively, for NCs and PSC, saturation magnetizations (Ms) of 125.7 and 162.5 emu/g, respectively, for NCs and PSC, and remnant magnetization (M r ) up to 46.6, and ... http://www.nanoscalereslett.com/content/6/1/285 Page of published SY and YQ: partly carried out the TEM and HRTEM experiments, as well as drafted the manuscript XL, LS, and HL: conceived of the study, and participated in its design and coordination ... out the experimental and numerical calculations, as well as drafted the manuscript VSM and PPMS: performed an analysis and interpretation of results, and gave final approval of the version to be...
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Báo cáo hóa học: " Synthesis and Photoluminescence Properties of Porous Silicon Nanowire Arrays" pdf
... 120, and 180 min, respectively Fig a The decomposition of the PL spectrum of the SiNWs treated with HF and the PL intensity varieties of the elementary bands with b H2O2 concentrations and c ... ions extract electrons from Si nearby and are deoxidized into Ag again The Si atoms around are oxidized and dissolved, leading to the etching of the silicon surface and the formation of the vertical ... place of the PL spectrum, resulting in the ‘‘red-shift’’ observed These porous SiNWs combine the physical properties of SiNWs and PS and could lead to opportunities for new generation of nanoscale...
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Báo cáo hóa học: " Synthesis and Magnetic Properties of Maghemite (c-Fe2O3) Short-Nanotubes" ppt
... 5:1474–1479 approach for large-scale synthesis of c-Fe2O3 SNTs by hydrothermal and subsequent annealing process The scanning electron microscopy (SEM) and transmission electron microscopy (TEM) results ... short-tubular structures The roomtemperature and low-temperature magnetic properties of these SNTs were investigated The study of pure c-Fe2O3 SNTs and their magnetic properties is a key issue, not only ... JEM-2010(HT)), and high-resolution transmission electron microscopy (JEOL JEM-2010 FET (UHR)) The operating voltages of the SEM and TEM were 25 and 200 kV, respectively The crystal structure of the samples...
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báo cáo hóa học:" Synthesis and Magnetic Properties of Nearly Monodisperse CoFe2O4 Nanoparticles Through a Simple " docx
... typical synthesis, 1.6 g (6 mmol) of FeCl3Á6H2O and 0.7 g of (3 mmol) CoCl2Á6H2O were dissolved in the solvent composed of 80 ml of water and 40 ml of ethanol After that, 7.3 g (24 mmol) of sodium ... temperature range of 10–330 K with an applied field of 100 Oe Experimental Results and Discussion Synthesis of CoFe2O4 Spherical Nanoparticles The process for synthesizing nearly monodisperse CoFe2O4 with ... JEM-2010 transmission electron microscope with an accelerating voltage of 200 kV One droplet of hexane dispersion of CoFe2O4 123 Fig XRD pattern of the as-synthesized CoFe2O4 nanoparticles Nanoscale...
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Báo cáo hóa học: " Synthesis, Electrical Measurement, and Field Emission Properties of a-Fe2O3 Nanowires" potx
... measure the electronic property of a single a-Fe2O3 NW and a-Fe2O3 film Figure 5a shows the schematic drawing of the CAFM measurement NWs were embedded in photoresist (PR) and only the tips of the ... the electronic resistivity of an a-Fe2O3 NW, and L and r represent the average length (800 nm) and radius (15 nm) of the NW, respectively We assumed that q (4.42 103 Xcm) is a constant for all of ... the resistance of the total NWs in a unit cm2 Fig A schematic graph of the formation of the a-Fe2O3 NWs in thin and thick iron Fig (a) Schematic illustration and (b) circuit diagram of conductive...
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Báo cáo hóa học: " Synthesis and Tribological Properties of WSe2 Nanorods" ppt
... reagent, and then a series of suspended oil samples were obtained The tribological properties of the base oil containing WSe2 nanorods and the base oil were investigated using a ball-on-disk mode of ... Foundation of China (Grant Nos 60778040, 10804036, 60878039), the Science and Technology Bureau of Key Program for Ministry of Education (Item No 207025), and the Development of the Science and Technology ... nanorods was lower than that of the base oil, and decreased with increasing mass fraction of the additives Figure 5b shows the impact of rotating speed and load for the base oil containing wt.% WSe2...
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Báo cáo hóa học: "Synthesis, structure and magnetic properties of b-MnO2 nanorods" pptx
... Scanning electron- (SEM) and transmission electron (TEM) microscope images of the product material (Fig 1) show its morphology in the form of nanorods of dimensions 50–100 nm in diameter and 1–3 ... the rich temperature-dependent magnetism of this material Synthesis and characterization The synthesis of the b-MnO2 nanorods involved LiOH, Mn(NO3)2 · H2O and citric acid in a molar ratio 1.2:2:3.2 ... cubic MnO and tetragonal Mn3O4 nanowires was reported to be the final product of a synthesis involving thermal evaporation of MnCl2 under argon flow, and the nanowires showed unusual magnetic properties...
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HERBICIDES – PROPERTIES, SYNTHESIS AND CONTROL OF WEEDS pdf
... the synthesis and properties of herbicides and weed control I hope therefore that readers who are interested in a synthesis and properties and control of weeds, for example in winter wheat of ... production of crops The format of the book is based on two main sections: Synthesis and Properties of Herbicides and Control of Weeds This book contains 25 review articles on a wide range of important ... El-Ghany Hasaneen Professor of Plant Physiology, Plant Department, Faculty of Science, Mansoura University, Egypt Part Synthesis and Properties Preparation and Characterization of Polymeric Microparticles...
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