Synthesis and characterization of nanocrystalline strontium titanate through a modified combustion method and its sintering and dielectric properties

Structural, microwave dielectric properties and dielectric resonator antenna studies of Sr(ZrxTi1−x)O3 ceramics

“…4 shows the FTIR spectra of Sr(Zr x Ti 1−x )O 3 powders. In the spectrum of SrTiO 3 , the broad and strong absorption band observed around 610 cm −1 can be assigned to Ti O stretching normal vibration of TiO 6 octahedra, while the weaker and sharper peak at around 412 cm −1 can be attributed to Ti O bending normal vibration [63,64]. From Fig.…”

Nanocrystals of a new complex perovskite dielectric Ba2TmSbO6

“…An aqueous solution containing ions of Tm, Ba, and Sb was prepared from high purity Tm 2 O 3 (99.9%, Alfa Aesar, USA), Ba(NO 3 ) 2 (99.9%, CDH, India) and Sb 2 O 3 (99.9%, Merck, USA) using the procedure described elsewhere [14][15][16][17][18]. The Tm 2 O 3 and Sb 2 O 3 were dissolved in nitric and tartaric acids, respectively.…”

NOx storage and reduction on a SrTiCuO3 perovskite catalyst studied by operando DRIFTS

“…The main features of the SrTiO 3 perovskite structure are expected to appear at 745 cm −1 and 560 cm −1 , assigned to stretching vibrations of Sr-O bonds and to stretching vibrations of TiO 2 , respectively [13]. However, spectra below 1000 cm −1 were not obtained due to the selection of windows materials employed with the IR cell.…”