nanocrystallinecapped gamma-Fe2O3Nanocrystalline gamma-Fe2O3 was prepared by refluxing ferric nitrate in 1,4-butanediol. 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 ...
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 ...
Heating stage Raman microscopy reveals that the temperature of transition to maghemite phase up to hematite is 550 degrees C. The heating of our maghemite (gamma-Fe2O3) powder up to 550 degrees C yields a single phase of Hematite hexagonal-corundum structure with R (3) over barc space ...
Formation of these phases of iron oxide with variation in sols' molarity is also confirmed using FTIR spectra and Raman spectroscopy. Iron oxide nanoneedles show soft magnetic behavior with high saturation magnetization of 73.2, 43.43, and 75.18 emu/g at 0.2, 1.0, and 2.0 mM sols, respectively...
X-ray diffraction, Raman and UV-VIS spectroscopy studies showed the presence of gold and iron oxide phases along-with the anatase TiO2 phase. TEM studies showed TiO2 nanocomposite particles of size ∼10-12 nm. A detailed investigation on heterogeneous photocatalytic performance for Navy Blue HE2...
Morphology, composition, and structural properties of our economically sound photocatalyst are characterized by X-ray diffraction, energy-dispersive X-ray spectroscopy, thermo-gravimetric, transmission electron microscopy, inductively coupled plasma, RAMAN and Fourier-transform infrared spectroscopy. (C) 2014 ...
By carefully controlling the reacting conditions, including atmosphere, temperature, and time, we directly acquire the nanowires of gamma-Fe2O3 from the nanowires of alpha-Fe2O3 in a reduced atmosphere. X-ray diffraction, X-ray photoelectron spectroscopy, Raman spectrum, and transmission electronic...
Raman laser degradationMAGNETIC FLUIDSSPECTRADiol capped gamma-Fe2O3 nanoparticles are prepared from ferric nitrate by refluxing in 1,4-butanediol (9.5 nm) and 1,5-pentanediol (15 nm) and uncapped particles are prepared by refluxing in 1,2-propanediol followed by sintering the alkoxide formed....
Venk- ataraman, and R. V. Jayaram, "Chemoselective transfer hydro- genation reactions over nanosized γ-Fe2O3 catalyst prepared by novel combustion route," Catalysis Communications, vol. 8, no. 11, pp. 1803-1806, 2007.Sonavane, S. U.; Gawande, M. B.; Deshpande, S. S. ...
The samples were characterized by HR-TEM, XRD, Raman, N-2 adsorption, magnetic strength and XPS. The obtained gamma-Fe2O3/CeO2-PDI had size of 1020 nm with high specific surface area of 77 m(2)/g, and could be easily separated from the aqueous solution by using a magnet, which ...