Micro-Raman study of indium doped zirconia obtained by sol–gel

Effect of fuels on conductivity, dielectric and humidity sensing properties of ZrO2 nanocrystals prepared by low temperature solution combustion method

“…Raman spectra of the ZrO 2 -1 show peaks at 147, 264, 318, 457, 473 and 646 cm −1 . All the peak positions except one at 473 cm −1 are quite accordance with the reported values for tetragonal phase of ZrO 2[33]. The sharp peak at 473 cm −1 corresponds to monoclinic phase of ZrO 2[34].…”

Characterization and SCR Performance of Nano-Structured Iron-Manganese Oxides: Effect of Annealing Temperature

“…10. Previous studies (Bersani et al, 2000;Zoppi et al, 2010) showed that the bands appearing at 220, 290, 403, 500, 609, 650 cm -1 were commonly assigned to hematite. However, the band at 650 cm -1 is usually a low-intensity signal and the literature (León et al, 2004) reported that it was not the spectrum of a perfect hematite due to the lack of longrange order.…”

Phase composition and photoluminescence correlations in nanocrystalline ZrO2:Eu3+ phosphors synthesized under hydrothermal conditions

“…The strong peaks are at 183, 335, and 474 cm −1 [45,46]. Besides, the small number of bands observed for the sample with 1 mol.% Eu 3+ allows identifying the t-ZrO 2 phase considerably easily with the peaks shown at 149, 224, 292, 324, 407, 456, and 636 cm −1 (curve 2) [47]. In the Raman spectra of ZrO 2 :10 mol.% Eu 3+ nanoparticles, there are mainly hardto-separate bands of the high-temperature metastable c-zirconia phases with a narrow band at 145 cm −1 and broad bands 230 -290 cm −1 , 400 -430 cm −1 , 530 -670 cm −1 and a shoulder at 301 cm −1 (curve 3) [48].…”