The structural properties of nanocomposite particles thus obtained were characterized by FT-IR, thermal analysis (TGA), X-ray diffraction (XRD), and transmission electron microscopy (TEM). It was found that ca. 50 urn gamma-Fe2O3 nanoparticles were well dispersed in PPy powder in TEM pictures...
X 射线衍射(XRD)、X 射线散射能谱(EDS)、扫描/透射电子显微镜(SEM/ HRTEM)、氮气和孔径分布(BJH)证明所得的样品为高纯的具有孔结构的 -Fe 2 O 3 纳米空心球. 超 导量子干涉仪(SQUID)和稳定性实验显示, -Fe 2 O 3 纳米空心球在室温下为超顺磁性, 且具有较 高的饱和磁矩和化学稳定性, 这为 -Fe ...
The techniques employed were XRD, nitrogen adsorption at 196 °C and catalytic conversion of ethanol and isopropanol at 250–400 °C using micropulse technique. The results showed that the supported solids being calcined at 400 °C consisted of well crystallized CuO, NiO, Fe 2 O 3 and AlOOH...
Characterisation was done by XRD, FTIR and Raman spectroscopy. TEM showed that the average particle size of the two samples were 9 nm and 6 nm with a small particle size distribution. FTIR and TG showed that the -Fe2O3 particles were capped with the diol. Mössbauer spectra of the 6 ...
gamma-Fe2O3 (maghemite) nanocrystals were synthesized by co-precipitation method at room temperature have been used to remove Pb+2 from aqueous solutions. The prepared of this sample was characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM) and vibrating ...
XRD measurementsDielectric constant and tangent lossesM-H and M-T loopMaghemite (gamma-Fe2O3) nanoparticles have been synthesized using a wet chemical route, optimizing the reaction time, PH value and size of the crystallite during synthesis. The Powder X-ray diffraction (XRD) measurements ...
The structural and magnetic properties of these gamma-Fe2O3 particles were studied by using XRD, SEM and IR. Magnetic properties of the prepared nanoparticles were evaluated on a vibrating sample magnometer (VSM). By changing the ionic liquids, particles with an average diameter from 5 to 10 ...
Thiourea dioxide was immobilized on -Fe2O3@Cu3Al-LDH magnetic nanoparticles to prepare the -Fe2O3@Cu3Al-LDH-TUD MNPs. The structure and properties of these magnetic nanoparticles were established by FT-IR, EDX, SEM, XRD, and hystogram of particle size analytical methods. The re...
Phase and morphology of the products are investigated using XRD, FTIR, SEM, and TEM analysis. Using UV-Vis spectra, various electronic transitions of goethite and maghamite particles are examined. Maghamite nanostructures exhibit superparamagnetic property at room temperature. On the basis of ...
The particle size distribution, thermal and phase stabilities and gas sensing properties were systematically characterized by TEM, granularity distribution, TG-DTA, XRD and gas sensitivity measurements. The particle size is about 10 nm and size distribution is very narrow. The sensitivity of the ...