... Synthesis of Porous r-Fe 2 O 3 Nanorods and Deposition of Very Small Gold Particles in the Pores for Catalytic Oxidation of CO Ziyi Zhong,* ,† Judith Ho, † Jaclyn Teo, † Shoucang Shen, † and ... hydrothermal conditions, 23 the synthesis of hollow hematite nanowires (with a pore size of 15 nm) by a vacuum-pyrolysis route from β-FeOOH, 24 and the hydrothermal synthesi...
Ngày tải lên: 20/03/2014, 13:08
... nucleation and growth of the nanorods and their use as a new class of inorganic scaffolds for the synthesis of nanomaterials are salient features of the work with implications in crystal engineering and ... showed that the morphology of hematite nanostructure is homogeneous in the shape of rods and full of porosity and magnetization measurements of the porous ␣...
Ngày tải lên: 19/03/2014, 16:48
synthesis of iron oxide nanorods and nanocubes in an imidazolium ionic liquid
... nanorods contained 5 mL of freshly dried [BMIM][Tf 2 N], 40 L (0.13 mmol) of oleic acid, 43 L (0.09 mmol) of oleylamine and 98mg of 1,2-hexandecandiol (or 0.34 mmol). The amount of iron pentacarbonyl ... discarded and the supernatant was centrifugated again. The resultant black precipitate was collected as the final product. 2.3. Synthesis of nanorods The mixture for th...
Ngày tải lên: 20/03/2014, 13:08
facile synthesis of porous a - fe2o3 nanorods and their application in ethanol sensors
... the size of Figure 3. (a, b) TEM and HRTEM images of R-FeOOH nanorods. (c, d) TEM and HRTEM images of porous R-Fe 2 O 3 nanorods. (e) The corresponding ED pattern and (f) HRTEM image of a single ... were of reagent grade and used without further purification. In a typical synthesis procedure of the R-FeOOH nanorods, 2.78 g of FeSO 4 · 7H 2 O and 3.28 g of CH...
Ngày tải lên: 19/03/2014, 16:48
simple and rapid synthesis of a-fe2o3 nanowires under ambient conditions
... (ESM). In spite of intensive research into one-dimensional structures of metal oxides in particular and NWs in general, our understanding of the mechanisms of their formation and growth is still ... [25]. The presence of two states of Figure 1 SEM images of the surface of the iron wire after the synthesis 375 Nano Res (2009) 2: 373 379 Figure 2 TEM images of NWs at...
Ngày tải lên: 20/03/2014, 13:07
Báo cáo khoa học: Reconstruction ofde novopathway for synthesis of UDP-glucuronic acid and UDP-xylose from intrinsic UDP-glucose inSaccharomyces cerevisiae pptx
... wall synthesis. An alternative route for the production of UDP-glucuronic acid via myoinositol has also been identified and characterized. Synthesis of UDP-glucuronic acid and UDP-xylose T. Oka and ... amounts of the nucleotide sugars, and also discuss the implications of our results in yeast for the study of metabolic regulation in plants. Results Cloning and expression...
Ngày tải lên: 07/03/2014, 12:20
facile hydrothermal route to the controlled synthesis of a - fe2o3 1 - d nanostructures
... introduction of SnCl 4 played a key role in determining the composition and morphology of α-Fe 2 O 3 . The addition of SnCl 4 favours the formation of Fe 2 O 3 rather than FeOOH, and the morphology ... alumina membrane. Tang et al (2006) reported the synthesis of α-Fe 2 O 3 nanorods through the calcination of FeOOH nanorods precursor. Ordered mesoporous α-Fe 2 O 3...
Ngày tải lên: 19/03/2014, 16:48
micelle-assisted synthesis of polyaniline magnetite nanorods by in situ self - assembly process
... sedimentation process and decorated the nanorods through X. Ding et al. / Journal of Colloid and Interface Science 320 (2008) 341–345 343 Fig. 1. Schematic illustration of the synthesis process of PANI/magnetite ... radiation. 3. Results and discussion Fig. 1 illustrates the synthesis process of PANI/magnetite nanorods. The synthesis is based on the well-known chemi- ca...
Ngày tải lên: 20/03/2014, 13:04
synthesis of hematite (r-fe2o3) nanorods diameter-size and shape effects on their
... the magnetic properties. Currently, because of limited studies on R-Fe 2 O 3 nanorods/ nanowires with a diameter of <20 nm and because their <20 nm and porous nanorods have not been obtained so far, ... kinds of inorganic salts. This work presents not only a new strategy to produce R-Fe 2 O 3 nanorods with diameters of <20 nm, but also the first report on the synt...
Ngày tải lên: 20/03/2014, 13:08