|
authors |
Chakrabarty, S; De, K; Das, S; Amaral, VS; Chatterjee, K |
|
nationality |
International |
|
journal |
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY |
|
author keywords |
Nanostructures; Transitional Metal Oxides; Solvothermal Synthesis; Structural Characterization; Optical Properties; Magnetic Properties |
|
keywords |
THIN-FILMS; CRYSTALLOGRAPHIC TRANSITIONS; ELECTROCHEMICAL PROPERTIES; CO3O4 NANOCUBES; NANO-PARTICLES; NICKEL-OXIDE; NANOPARTICLES; ALPHA-FE2O3; MN2O3; SHAPE |
|
abstract |
Here we report a generalised way to prepare transitional metal (Ni, Co, Mn, Fe) oxide nanostructures via solvothermal route followed by controlled heat treatment. The method has been successfully involved to produce structurally uniform and well crystalline phase of the different metal (Ni, Co, Mn) oxide faceted nanoparticles and porous nanorods (Fe2O3) with highly anisotropic surfaces. The product materials were characterized by the X-ray powder diffraction and electron microscope (SEM, TEM) to investigate the structural and morphological details. Optical absorption study was carried out by UV-VIS spectrophotometer and the results are analysed on the basis of their electronic transitions of 3d shell and band energies. The details magnetic investigation was carried out by the measurement of magnetization with varying magnetic field and temperature. The observed magnetic behaviour is explained on the basis of uncompensated spins lying on the surface which is extremely anisotropic in the present systems of the synthesized materials. |
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publisher |
AMER SCIENTIFIC PUBLISHERS |
|
issn |
1533-4880 |
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year published |
2014 |
|
volume |
14 |
|
issue |
6 |
|
beginning page |
4236 |
|
ending page |
4244 |
|
digital object identifier (doi) |
10.1166/jnn.2014.8080 |
|
web of science category |
Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter |
|
subject category |
Chemistry; Science & Technology - Other Topics; Materials Science; Physics |
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unique article identifier |
WOS:000332339500034
|
|
link |
24738377
|
