Raman spectroscopy and phase transition of anatase TiO2 under high pressure. Journal of Physics and Chemistry of Solids , 2001 , 62 : 717T. Sekiya, S. Ohta, S. Kamei, et al., “Raman Spectroscopy and Phase Transition of Anatase TiO 2 under High Pressure,” Phys. Chem. Solids 62 , ...
Finite-size and pressure effects on the Raman spectrum of nanocrystalline anataseTiO2 The Raman scattering behavior of anatase nanocrystals with average diameters of 4, 8, 20, and 34 nm has been compared with bulk crystal data in order to es... V Swamy,A Kuznetsov,LS Dubrovinsky,... - 《...
Size-Dependent Pressure-Induced Amorphization in Nanoscale TiO2 We investigated the size-dependent high-pressure phase transition behavior of nanocrystalline anatase TiO2 with synchrotron x-ray diffraction and Raman spectroscopy to 45聽GPa at ambient temperature. Pressure-induced amorphization result... V Sw...
UV Raman spectra of these samples indicate that the mixed phases of anatase and rutile coexist in the surface region. Namely, when the TiO2 sample is calcined at 700– 750 oC, the phase junctions between anatase and rutile are derived on the surface of the rutile TiO2, as characterized by ...
First, the quantum-mechanical calculations of molecular clusters imitating the Li...TiO2 system, which showed formation of covalent Li-O bonds and allowed an estimation of their force constants. Second, the lattice dynamics simulation which enabled to predict the whole spectrum of Li-phonons and ...
UV Raman spectra of these samples indicate that the mixed phases of anatase and rutile coexist in the surface region. Namely, when the TiO2 sample is calcined at 700– 750 oC, the phase junctions between anatase and rutile are derived on the surface of the rutile TiO2, as characterized by ...
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...
The material phases investigated were amorphous titania, anatase TiO2, and rutile TiO2. Annealing-induced phase transformations from amorphous TiO2 to anatase to rutile were studied by Raman scattering, infrared reflectivity, infrared absorption, x-ray diffraction, and electron energy-loss spectroscopy (...
Temperature Dependence of the Raman Spectrum in Anatase TiO2 The frequency and linewidth of the four Raman active modes in anatase have been investigated over the temperature range 20 to 1100 K. The temperature (T) d... T Ohsaka - 《Journal of the Physical Society of Japan》 被引量: 237...
Figure 2: Raman spectrum obtained from a grain of anatase titanium dioxide (TiO2) with an impurity phase of rutile present (green). The Raman spectra of reference rutile and anatase phases are shown in red and blue, respectively. To further emphasize the need to be aware of the presence of...