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The alpha-MoO3, h-MoO3 and Mo4O11 oxides are formed by low-temperature chemical synthesis from water-based solutions by different precipators. Phase purity and high crystallinity of final products are confirmed with XRD and TEM analysis. Spectral properties of molybdenum oxide nanocrystals are measured with IR and Raman spectroscopies. Lo-temperature precipitation from water-based solutions can be...
Carbon nanotubes were prepared by using a hot filament chemical vapour deposition (HFCVD) system. Methane diluted in hydrogen was used as the reaction gas and nanosized nickel particles were used as the catalyst. Studies on the effect of catalyst preparation and growth conditions were conducted. The carbon nanotube produced under different conditions were characterized using field emission scanning...
Ti1-xFexO2 (x=0.00-0.13) nano-particles were prepared by hydrolysis method and characterized by SEM, , TEM, XRD, and magnetization measurements (VSM). We investigated the effects of Fe doping on the structure of the Ti1-xFexO2 system by Raman scattering studies. SEM, TEM and XRD measurements show that the particle size of the powder is in nano-scale, and that the magnetic Fe impurities substitute...
Nd3+ doped PbZr0.52Ti0.48O3 (PNZT) nanopowders were prepared by sol-gel methods in ethylene glycol system. Neodymium nitrate was used as Nd3+ source. The reaction mechanisms of nanopowder preparing process from the sol were discussed through using FTIR, XRD, TG-DTA, and it was proved that the heating temperature of PNZT was 50degC-100degC higher than PZT. PNZT lattice structure was characterized...
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