Raman spectra of inorganic solidssilicon compoundsvibrational states in disordered systemsvitreous state/ thermally treated silica gelsprogressive thermal densificationlow-frequency room temperature Raman spectroscopylocalised extra-modesphonon-fracton crossover...
举例:In order to obtain better confirmation on the presence of H4SiMo12O40, Raman spectroscopic investigation was also conducted, because Raman spectroscopy is a sensitive technique to study supported metal oxide and it is complementary to IR investigation. The Raman spectra of the MoVI@mSiO2 and ...
Using microspectroscopic techniques, variable amounts of a novel silica polymorph ("moganite') were found in samples of chalcedony, chert, and flint and have obtained the Raman spectrum of the pure phase. Comparison with Raman spectra of other tetrahedrally coordinated minerals confirmed that this ...
UV Raman spectra of these samples indicate thatthe mixed phases ofanatase and rutilecoexistin the surface region.Namely, when the TiO2 sample is calcined at 700– 750 oC,the phase junctions betweenanatase and rutileare derived on the surface ofthe rutile TiO2,as characterized byUV Raman spectrosc...
Identification of local silicon cluster nanostructures inside Si(x)Ge(1-x) alloy nanocrystals by Raman spectroscopy. By experimentally examining and theoretically analyzing the Raman spectra of SixGe1xnanocrystal-embedded silica films, we show that the 430 cm1Si–Si optic... LZ Liu,XL Wu,JC Shen...
To investigate the volume expansion of a carbon dioxide (CO2) + n-hexane mixture at different temperatures and pressures, we developed a measurement set-up using an optically transparent fused silica capillary cell (FSCC) combined with Raman spectra. The results showed that the method is feasible...
'Raman spectra' refers to the characteristic patterns of light scattering that arise from interactions between a laser beam and the chemical composition of a sample. These spectra can be influenced by various factors such as excitation wavelengths and background fluorescence, and are commonly used in...
In situ characterisation of living cells by Raman spectroscopy We report the first Raman spectra of individual living and dead cells (MLE-12 line) cultured on bioinert standard poly-L-lysine coated fused silica and on ... I Notingher,S Verrier,H Romanska,... - 《Spectroscopy》 被引量: ...
Vibrational frequency spectra are presented for vitreous silica, germania and beryllium fluoride; these have been computed from atomic arrangements in physical models described in an earlier paper. The positions of bands in the computed ... RJ Bell,NF Bird,P Dean - 《Journal of Physics C Solid ...
Raman spectra of the metathesis catalysts tungsten oxide on silica and tungsten oxide on 纬-alumina.Thomas, RMoulijn, J AKerkhof, F P J M