Analysis of the corresponding FTIR spectra revealed the existence of Sb-O modes at 770 cm 1 . The drying of both types of gel was accompanied by the formation of hydrogen bonds of medium strength wit the OH-O length about 2.7–2.8 . Some properties of pure and Sb doped oxide powders ...
Precise amounts of these samples were blended with KBr and pressed into discs, and their FTIR spectra were determined. Two-spectra subtraction, and combination of multiple spectra by matrix inversion and least squares matrix methods were used to give spectra of individual lignin, hemicellulose, and...
FTIR spectraOH groupssemiconductorThe adsorption of SO 2 on SnO 2 surfaces obtained from hydrolysis of SnCl 4 and NH 3 was studied by X-ray Photoelectron Spectroscopy. Tin dioxide surfaces were treated with SO 2 at temperatures ranging from 300 to 900°C. For this temperature range, XPS ...
Fourier transform infrared (FTIR), ATR and near normal reflectance spectroscopic techniques were utilized to determine the vibrational spectra of aqueous gels, xerogels and oxides of Sb doped and undoped compounds. Analysis of the corresponding FTIR spectra revealed the existence of Sb-O modes at 770...
The chemical composition of the passivating layer formed on nano SnO2 anodes in 1 M LiClO4+(ethylene carbonate)EC+(dimethyl carbonate)DMC at different charge/discharge states in lithium secondary batteries was studied using extra reflectance FTIR spectra. Results show that solvent decomposition reaction...
Conductance measurements in dry and wet air are presented together with the FTIR spectra for temperatures ranging from 100 to 450掳C. By alternating wet and dry air, it has been observed that the conductance of pure SnO2 samples changes in a reversible way only for temperatures over ...