ionic liquid assisted synthesis of hierarchical ceramic nanomaterials as nanofillers for electro
Báo cáo hóa học: " Microwave-Assisted Synthesis of Titania Nanocubes, Nanospheres and Nanorods for Photocatalytic Dye Degradation" pptx
... attributed to the ion assisted growth of the crystallites which may be different for OHassisted growth in the case of S1 and Cl- assisted growth in S2 and Cl- and NH4? assisted growth in S3 The ... frequency of 2,450 MHz was used for the synthesis Synthesis of TiO2 Nanostructures A general synthetic strategy adopted for the synthesis of titania nanostructures was using TiCl3 as Ti precursor by ... degradation of aqueous methylene blue, TiO2 sol was prepared About 100 mg of the synthesized TiO2 was dispersed ultrasonically in 50 mL of deionized water For photodegradation experiments, 50 mL of 10-5...
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Carbon assisted synthesis of silicon nanowires
... nanojunctions, as shown in the low-magnification TEM image in Fig 3a The junction has a Y-shape, with arms of a uniform width of 200 nm, and a length of a few microns Careful studies of the TEM images and electron ... obtained was grey or white in color and was collected as fine powders In procedure (iii), a silicon substrate was used as the source of silicon The Si(1 0) substrates were cleaned by ultrasonication ... planes of silicon The crystallinity of the nanowires is considerably higher when only argon was used instead of a mixture of argon and hydrogen The role of hydrogen in promoting the amorphization of...
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Polymer assisted synthesis of aligned amorphous silicon nanowires and their core shell structures with au nanoparticles
... uni4 formly absorbed on the surface of the SiNWs Because of the high standard electrode potential of the Au3+/Au0 couple, Au3+ has high polarization and high chemical reactivity Au3+ could be easily ... substrate As is seen form the cross-sectional view along the edge of the scratched film, the orientation of the NWs is widespread over the whole substrate The homogeneous thickness of the NWs film is easily ... carbon plays an important role in the formation of the SiNWs; (2) in the addition of a procedure that Si substrate was cleaned with aqueous solution of 5% HF for 10 to remove the native oxide layer,...
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micelle-assisted synthesis of polyaniline magnetite nanorods by in situ self - assembly process
... is associated with the decomposition of PANI As seen from the TGA curves, the rate of weight loss of PANI (curve a) is much fast, the residue of PANI is 44.06%; while the rate of weight loss of ... synthesis of PANI/magnetite nanorod composites through DBSA micelleassisted synthesis by in situ self-assembly method The presence of a high concentration of DBSA can effectively prevent the formation ... chain of PANI at higher temperature (
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Báo cáo hóa học: " Microwave-assisted synthesis of water-dispersed CdTe/CdSe core/shell type II quantum dots" pdf
... http://www.nanoscalereslett.com/content/6/1/399 Page of Figure Optical performance of CdTe cores and corresponding CdTe/CdSe type II QDs by means of microwave -assisted synthesis The optical performance of a series of original CdTe ... was lasting more than that of the CdTe core QDs, which has the potential applications as sensitizers for solar cells Acknowledgements This work was financially supported by the 973 Project of ... an evidence of the successful formation of core/shell heterostructures We also perform the UV-illuminated treatment for improving the PLQY of our as- received CdTe/CdSe QDs In our case, we found...
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Báo cáo hóa học: " Plasma-Assisted Synthesis of Carbon Nanotubes" pot
... presence of excited neutral and ionized species was easily detected by measuring the optical emission intensity of the plasma The OES of three different hydrocarbon gases diluted in NH3 gases was displayed ... Low activation energy of *0.2–0.4 eV was reported for low-temperature plasmaassisted growth of CNTs [27, 51], which was similar to the activation energy of surface diffusion of carbon atoms on polycrystalline ... temperatures as a function of plasma power The gas mixture simulated was 54:200 sccm C2H2/ NH3 at 12 mbar Cathode-to-anode temperature profiles for the cases of pure plasma heating vs plasma plus...
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Báo cáo hóa học: " Lactobacillus assisted synthesis of titanium nanoparticles" pptx
... nm of the titanium nanoparticles being formed using lactobacillus strain The micrograph clearly illustrates individual nanoparticles as well as a number of aggregates The measurement of size was ... related to the production of nanopowders, the present work reports an eco-friendly biotechnological approach for the synthesis (lactobacillus assisted) of nanotitanium for possible applications ... was filtered under the laminar flow through whatman filter paper, allowed to dry under blow of hot air after which they were used for X-ray and TEM characterizations The formation of single-phase...
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one - pot facile synthesis of iron oxide nanowires as high capacity anode
... assembled in a glove box for electrochemical characterization The electrolyte was 1M LiPF6 in a 1:1 mixture of ethylene carbonate (EC) and dimethyl Page of 14 carbonate (DMC) Li metal foil was ... revealed that the prepared alpha-Fe2O3 product was uniform nanowires with the d length/diameter ratio as high as 500 The electrochemical properties of alpha-Fe2O3 nanowires te were evaluated by ... transport per formula unit during the charge/discharge process, and the theoretical capacity of Fe2O3 is as high as 1005 mAh/g, which is much higher than that of the theoretical capacity of graphite...
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Design and synthesis of cysmethynil and analogues as inhibitors of isoprenylcysteine carboxyl methyltransferase (ICMT)
... .57 3.4.2 Synthesis of Series and compounds .58 3.4.3 Synthesis of Series compounds 63 3.4.4 Synthesis of Series compounds (4-1 and 4-3) 67 3.4.5 Synthesis of Series compounds ... Materials for biological assay 78 4.2.2 Outline of the Icmt inhibition assay .79 4.2.3 Measurement of Icmt activity 80 4.2.4 Outline of the cell viability assay ... also necessary for activity, as seen in the loss of activity for the shortened homologue Although presence of substituents at position and was also important for activity, omission of either substituent...
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Investigation of au and in as solvents for the growth of silicon nanowires on si(1 1 1)
... underlying substrate whereas liquids with lower surface tension tend to wet the substrate This could explain the formation of smaller droplets in the case of gold than in the case of indium on a bare ... (157 1C) [13] As the surface tension of most liquids decreases in a nearly linear fashion with increasing temperature [14], there is a wide difference between the surface tension of the Au–Si ... was accomplished by means of an electron beam evaporator The pre-structuring of substrates was performed by focused ion beam (FIB) treatment with 30 kV Ga+ ions Distances, widths and depths of...
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Subcoal ® from coarse rejects of the paper industry as fuel for limekilns doc
... 28.5 1,600 65% plastic in waste incinerator Cement kiln 35% plastic in cement kiln 65% plastic in waste incinerator Waste 100% plastic in waste incinerator incinerator The routes of Subcoal® and ... focus of the research on the environmental friendly ways to recover plastic packages, only the plastic fraction of the PPF was assessed The study compared the integral incineration of plastic ... Delft revealed that for the paper-plastic fraction of household waste, the Subcoal® route has a better climate and overall environmental score as compared to the incineration in a waste incineration...
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Báo cáo hóa học: "Preparation and evaluation of novel mixed micelles as nanocarriers for intravenous delivery of propofol" potx
... from inner phase and then slower release Nevertheless, the release rate of mixed micelles was faster than that of CLE before the first 12 h, the release rate of the two formulations was comparable ... mL) of the release medium was taken and replaced by fresh medium The content of propofol in the medium was measured by HPLC method as described above The cumulative release percentage of propofol ... release medium upon 24 h long co-incubation The propofol release profile from mPEG-PLA/Solutol HS15 mixed micelles was presented in Figure The comparison of the profiles of propofol release from...
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Báo cáo hóa học: " Research Article Experimental Evaluation of the Usage of Ad Hoc Networks as Stubs for Multiservice Networks" ppt
... to verify the truthfulness of the information, through the cryptographic information contained in the proofs, and retrieves the information of the ad hoc route PACP associated with proper gateway ... overhead for real time classes is of 2.11%, 1.20%, and 0.67%, respectively, for the 64 kbps, 128 kbps, and 256 kbps traffic profiles Again, these values are similar to the ones of unicast and multicast ... the measured effects of introducing several functionalities into ad hoc networks serving as stubs for multiservice networks These results are part of a much larger work being performed for the...
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Studies of cobalt and iron oxidesoxyhydroxides nanostructures for electrochemical applications
... Comparison of non-enzymatic glucose sensing performance based on different electrode materials of transition metal compounds 81 5.1 Summary of electrochemical sensing (electrooxidation) of hydrogen ... compounds is crucial due to two reasons: 1.) the synthesis of cobalt oxide and oxyhydroxide nanomaterials often involve the transformation of intermediate phases such as cobalt hydroxide,73-86 cobalt ... 2.2.3 Electrochemicalstudies Electrochemical measurements were performed in a conventional three electrode electrochemical cell with platinum rod as the counter electrode and Ag/AgCl as the...
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synthesis of iron oxide nanorods and nanocubes in an imidazolium ionic liquid
... control of nanomaterials is feasible using ionic liquids by selecting proper capping agents and reaction conditions, which is an important step forward in using ionic liquids as solvents for controlling ... were easily collected by washing with mL of hexane A suspension of such nanomaterials in hexane (0.1 mL) was further diluted with mL of hexane and then centrifuged at 8000 rpm for 10 2.5 Synthesis ... imidazolium-based ionic liquid, Green Chem (2007) 1051–1056 [34] Y Wang, H Yang, Oleic acid as the capping agent in the synthesis of noble metal nanoparticles in imidazolium-based ionic liquids,...
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microwave assisted hydrothermal synthesis of single crystalline zno nanorods for
... well as gas concentration in case of CO gas while in case of ethanol and acetaldehyde, response as well as recovery time both increased These ZnO nanorods show response as low as 100 °C for CO ... balance gas was N2, and air was mixed to be 5% of oxygen The total gas flow rate was 100 ml/min Before injection of test gas, device was stabilized in air for h, to stabilize the base line The ... temperature for these gases Fig 3a shows the comparison of response of ZnO for 1000 ppm of CO and 250 ppm of ethanol as well as acetaldehyde at different testing temperatures The highest response for...
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sol–gel assisted hydrothermal synthesis of zno microstructure
... properties of the as- synthesized ZnO [30] Fig UV–Vis absorption spectra of the as- synthesized ZnO samples Please cite this article in press as: X Zhao et al., Sol–gel assisted hydrothermal synthesis of ... activity of the commercial ZnO powders was also tested for comparison Fig 6a shows the degradation rate of KGL as a function of irradiation time in presence of different samples In the absence of light ... the absorbance for the maximum peak at 608 nm decreases, suggesting the occurrence of the destruction of KGL and the formation of some intermediates When the solution was irradiated for 40 min,...
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Báo cáo hóa học: " A general strategy for synthesis of metal oxide nanoparticles attached on carbon nanomaterials" pptx
... result was accorded with XRD pattern shown in Additional file (SI 3) The regular interplanar spacing of 0.33 nm for SnO2, 0.27 nm for CeO , was ascribed to (110) planes of SnO , (200) planes of CeO2, ... We selected Fe O /SWNTs as a model case for superior anode materials of lithium ion batteries Figure displays the high reversibility of the electrochemical reactions of Fe2 O3/SWNTs nanohybrid ... so the superior capabilities of Fe2O3 NP/SWNTs electrode were ascribed to the reactions involving Fe2 + -Fe3+ conversions The performance of the nanocomposites was mainly determined by the particle...
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Báo cáo hóa học: " Synthesis of ZnGa2O4 Hierarchical Nanostructure by Au Catalysts Induced Thermal Evaporation" pdf
... synthesis of the ZnGa2O4 nanocombs was carried out in a conventional horizontal furnace in two steps, and the Ga2O3 nanowires were first synthesized as the templates for the following growth of ... cm) was mounted horizontally inside a single-zone high temperature resistance furnace For the synthesis of Ga2O3 nanowires, a mixture of Ga2O3 and active carbon powders (molar ratio 1:2) was put ... alumina boat that was located at the center of the furnace tube, and a silicon wafer coated with *3-nm Au film was placed downstream at a distance of cm Before heating, the system was purged with...
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báo cáo hóa học:" Template-Assisted Synthesis and Characterization of Passivated Nickel Nanoparticles" pdf
... optimize the method of synthesis by cycling to increase the net magnetization of the nanocomposite The exact determination of the amount of nickel on the composite is also important Therefore, compositional ... were observed in the case of samples on SAC However, in the case of samples on WAC, the XRD pattern consists of characteristic peaks of Nickel and Nickel oxide The appearance of a kink in the main ... from the other Due to the macroporous nature of WAC, compared to the gel type nature of SAC, the chances of formation of oxide is more in the case of WAC than SAC The lattice parameter ‘a’ and...
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