synthesis of hollow microspheres constructed with fe2o3 nanorods
synthesis of hollow microspheres constructed with fe2o3 nanorods
... hol- low microspheres constructed with ␣-Fe 2 O 3 nanorods by calcining in air at 600 ◦ C for 2 h. The ␣-Fe 2 O 3 superstructures consist of well-aligned ␣-Fe 2 O 3 nanorods with an average length of ... that the hollow microspheres constructed with ␣-Fe 2 O 3 nanorods are effective photocatalyst for the degradation of methyl orange and display weak ferromagneticbe...
Ngày tải lên: 20/03/2014, 13:08
synthesis of wo3 in nanoscale with the usage of sucrose ester
... method, two types of w/o microemulsion with the composition: 30 wt.% of S1570, 50 wt.% of tetradecane/1- butanol and 20 wt.% of aqueous solution (containing of 4 wt.% and 14 wt.% of tungsten (VI) ... nanoscale with the use of sucrose ester microemulsion. In the first method, a w/o microemulsion with the composition: 30 wt.% of S1570, 50 wt.% of tetradecane/1- butanol a...
Ngày tải lên: 20/03/2014, 13:08
facile route to the synthesis of porous - fe2o3 nanorods
... ␣-FeOOH nanorods at 500 ◦ Cfor6h.Evenafter removal of template by solvent extraction and calcination the shape of the nanorods was intact except the generation of pores on the nanorods. The porous nanorods ... controlling the nucleation and growth of the nanorods and their use as a new class of inorganic scaffolds for the synthesis of nanomaterials are salient features...
Ngày tải lên: 19/03/2014, 16:48
facile synthesis of porous a - fe2o3 nanorods and their application in ethanol sensors
... consistent with the results of TG-DTA. Figure 1. TG-DTA curves of as-prepared FeOOH nanorods. Figure 2. XRD patterns of (a) R-FeOOH and (b) R-Fe 2 O 3 nanorods. Porous R-Fe 2 O 3 Nanorods J. ... well-structured nanorods were obtained, and the length of the nanorods increased with the increase in the reaction time. On the basis of the above results, a growth mechanism...
Ngày tải lên: 19/03/2014, 16:48
glucose - mediated hydrothermal synthesis and gas sensing characteristics of wo3 hollow microspheres
... 450 ◦ C. With the input of increasing thermal energy during calcination, the hollow WO 3 microspheres were gradually transformed into solid microspheres. Both hollow and solid WO 3 microspheres ... prepare monodisperse carbon microsphereswith hydrophilic surface by the hydrothermal reaction of glucose and demonstrated the reactiv- ity of carbon spheres through the uniform coa...
Ngày tải lên: 19/03/2014, 16:48
synthesis of hematite (r-fe2o3) nanorods diameter-size and shape effects on their
... new strategy to produce R-Fe 2 O 3 nanorods with diameters of <20 nm, but also the first report on the synthesis of porous R-Fe 2 O 3 nanorods with diameters of <20 nm. Evidently, the magnetic ... porosity nanorods: 60-90 porosity: 20-50 FeCl 3 -KCl systems S3 nanorods 5-16 FeCl 3 -Na 2 SO 4 systems S4 nanorods with porosity nanorods: 5-19 porosity: 2-16 FeCl 3 -...
Ngày tải lên: 20/03/2014, 13:08
synthesis of porous fe2o3 nanorods and deposition
... 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 synthesis of R-Fe 2 O 3 hollow spheres in the presence of ... reports on this kind of synthesis, 23-25 including the synthesis of single-crystalline R-Fe 2 O 3 nanotubes with inner diameters in the rang...
Ngày tải lên: 20/03/2014, 13:08
synthesis of single-crystalline hollow b-feooh nanorods via a controlled
... b-FeOOH hollow nanorods with length in the range of 70–110 nm and width in the range of 20–30 nm. In particular, a process mechanism has been revealed for synthesis of single-crystalline b-FeOOH hollow ... experiment: (a) SEM image of b-FeOOH hollow nanorods, (b) TEM image of b-FeOOH hollow nanorods, (c) HRTEM image and its related Fourier transform electron diffracti...
Ngày tải lên: 20/03/2014, 13:08
Polymer assisted synthesis of aligned amorphous silicon nanowires and their core shell structures with au nanoparticles
... Yang a, * a State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China b Graduate School of the Chinese Academy of Sciences, Beijing, ... analytic results of the morphology and microstructure confirmed the orientation and the amorphous nature of the SiNWs, and the high dispersion of Au nanoparticles on th...
Ngày tải lên: 16/03/2014, 15:06
Synthesis of large scale sic–sio2 nanowires decorated with amorphous carbon nanoparticles and raman and PL properties
... possible synthesis mechanism of SiC–SiO 2 core–shell nano- wires decorated with carbon nanoparticles was proposed. Ó 2009 Published by Elsevier B.V. 1. Introduction In connection with the discovery of ... environment. Thermal decomposi- tion of ethanol was used to produce carbon source for synthesis of this nanostructure. Strong enhancement of blue emission band and appearan...
Ngày tải lên: 16/03/2014, 15:08