The nano-sized MgB 2 powder was prepared by spray pyrolysis method in order to improve its flux pinning properties by increasing the number of grain boundaries. MgB 2 powder was synthesized using spray pyrolysis technique followed by a post-annealing process without excessive magnesium addition. The
Synthesis and characterization of nano-sepiolite by solvothermal method
โ Scribed by Zahra Darvishi; Ali Morsali
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 481 KB
- Volume
- 256
- Category
- Article
- ISSN
- 0169-4332
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โฆ Synopsis
In the present work, we have developed a simple solvothermal method to prepare nano-sepiolite. Solvothermal technique is a wet chemical process that has been widely utilized to synthesize inorganic nano-materials at temperatures often below 200 8C . Its distinct advantage is to induce the formation of high-crystallized powders with narrow particle size distribution and high purity without post annealing at
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Maghemite sub-micrometer-sized spheres were successfully prepared by a simple solvothermal reduction route at relatively low temperature. The as-obtained sample was characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), electron diffraction (ED), X-ray photoelectron spectr