micelle-assisted synthesis of polyaniline magnetite nanorods by in situ self - assembly process

... Journal of Colloid and Interface Science 320 (2008) 341–345www.elsevier.com/locate/jcis Micelle-assisted synthesis of polyaniline/ magnetite nanorods by in situ self- assembly process Xuefeng Dinga,1, ... 2008Abstract Polyaniline/ magnetite nanocomposites consisting of polyaniline (PANI) nanorods surrounded by magnetite nanoparticles were prepared via an in situ self- assembly process in the presence of PANI nanorods. ... images of the resulting PANI/mag-netite nanorods prepared by in situ self- assembly method. Asshown in Fig. 2A, PANI /magnetite nanorods has an unique nanorods structure in shape, ca. 80 nm in diameter...

synthesis of iron oxide nanorods and nanocubes in an imidazolium ionic liquid

... for 160 min.alignment of nanorods could be observed in the self- assembledstructures of nanorods in the absence of external ﬁeld. HR-TEMstudy indicated that the nanorod was crystalline. The ... capping agents did work well in this IL in helping createthe large difference in reactivity among the low-index surfaces of nanocrystals and in facilitating the formation of nanocubes and nanorods. ... role in the shape control of nanostructures.Oleylamine and 1,2-hexadecanediol are required co-surfactants in controlling the formation of nanorods of iron oxide. Thedifferent solubility of precursors,...

Tài liệu Báo cáo Y học: Dinucleoside polyphosphates stimulate the primer independent synthesis of poly(A) catalyzed by yeast poly(A) polymerase ppt

... ﬂow rate of 0.5 mLÆmin)1with a 20-min linear gradient (5–30 mM )of sodium phosphate (pH 7.5), in 20 mMtetrabutylam-monium bromide/20%methanol (v/v) (buffer A) followed by a 10-min linear gradient ... the5-min incubation are shown in Fig. 3. No appreciable synthesis of poly(A) (spot at the origin) was observed in the absence of Gp2G, whereas in its presence the ATPspot decreased, increasing ... preferences: comparing dinucleotideswith the same number of inner phosphates, guaninedinucleotides are more active than adenine dinucleotidesand, adenine dinucleotides with even number of innerphosphates...

facile route to the synthesis of porous - fe2o3 nanorods

... properties of the resulting porous- nanorods were determined using combined SEM, XRD, HRTEM andSQUID measurements. Crystalline porous ␣-Fe2O3was obtainedafter heat-treating the as-obtained ␣-FeOOH ... decomposition of ␣-FeOOH to ␣-Fe2O3during calcinations in air. It is in agreement with the topotactic reaction [49]. Duringthe process of the calcinations, ␣-FeOOH decomposes to ␣-Fe2O3thus ... the rod-like micelle of the surfactant helps in the mor-phology selectivity during the growth process. The magnetic properties of the porous ␣-Fe2O3 nanorods werefurther investigated using...

synthesis of porous fe2o3 nanorods and deposition

... the synthesis of single-crystallineR-Fe2O3nanotubes with inner diameters in the range of 4 0- 80 nm by reacting FeCl3with NH4H2PO4under hydrothermalconditions,23the synthesis of ... nanowires(with a pore size of 15 nm) by a vacuum-pyrolysis routefrom β-FeOOH,24and the hydrothermal synthesis of R-Fe2O3hollow spheres in the presence of D-glucose.25 In a series of attempts, we ... temperatures (Figures 4-6 ). The as-prepared ironoxide product was in the form of FeO(OH) (JCPDS-IC-0 0- 00 3-0 249), and the calcined sample at 300 °C was identifiedas R-Fe2O3 by comparing its XRD pattern...

ANALYSIS OF MICROBIAL COMMUNITY STRUCTURE AND IN SITU ACTIVITY OF NITRIFYING BIOFILMS

... distribution of in situ nitrifying activity was well correlated to the vertical distribution of NH4+ - and NO2 - -oxidizing bacteria in the corresponding biofilm determined by use of FISH technique ... performed. In situ hybridization of vertical biofilm thin sections clearly indicated that the numbers of probe NEU-stained NH4+-oxidizing bacteria (i.e., Nitrosomonas marina-lineage, Nitrosomonas ... No.2, 2004 - 66 - - 66 - Therefore, we investigated successional development of nitrifying bacterial community structure and in situ nitrifying activities in biofilms when the biofilms were...

facile large scale synthesis of ws2 nanotubes from wo3 nanorods prepared by a hydrothermal route

... temperature in the presence of Ar. A heating rate of 5◦Cmin−1was main-tained during the heating/cooling process. 2.3. CharacterisationThe products obtained from hydrothermal reactions afterwashing ... while main-taining the pH of the reactant same as the correspondingexperiment carried with citric acid.2.2. Conversion of WO3 nanorods to WS2nanotubesAn alumina crucible containing WO3 nanorods ... synthe-sis of WO3 nanorods as synthesising large quantities WO3nanostructures of the required size becomes a greater task.WO3 nanorods were produced by heating the tungsten ﬁl-ament in an inert...

facile synthesis of porous a - fe2o3 nanorods and their application in ethanol sensors

... (FeOOH).Then the porous R-Fe2O3 nanorods were obtained by thecalcination of as-prepared R-FeOOH at 300 °Cfor2h.Theas-obtained porous R-Fe2O3 nanorods have a tiny crystal size(5 nm) and ... OH - produced by the hydrolysis of CH3COO - . Then these R-FeOOH particles further assembledinto rodlike structures by combining together with OH groups.Finally, the porous R-Fe2O3 nanorods ... were obtained by calcining the as-prepared R-FeOOH nanorods precursor at 300°Cfor2hinair. The color of the samples changed from yellowto red. The whole preparation process for the porous R-Fe2O3nanorods...

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