Characterization of sol–gel derived TiO2/ZrO2 films and powders by Raman spectroscopy

Surface Texturing of TiO2 Film by Mist Deposition of TiO2 Nanoparticles

“…3(b) as the typical case, and no difference in the micro-Raman spectra was observed with the measurement area changing. Figure 2 is the Raman shifts exhibiting dominant peaks at 140.2, 246.1, 449.5, and 615.7 cm −1 which can be assigned as the Raman active modes of rutile crystal phase: B 1g , multi-photon process, E g , and A 1g , and the numbers and frequencies of the Raman bands coincide with previous studies [16]. The peak of 1060 cm −1 is attributed to NO A circular white film formed on the substrate when the concentration of suspension based on TiO 2 unit is 0.06 mol/l, the deposition time is 30 min and the flow rate is 1 l/min.…”

Highly dispersed Pt+ on Ti Ce(1−)O2 as an active phase in preferential oxidation of CO

“…Ti x Ce (1-x) O 2 supports with different molar compositions (x=1, 0.98, 0.9, 0.5, 0.2 and 0), were synthesized using the sol-gel method [6]. The proper amount of cerium nitrate (Ce(NO 3 ) 3 ·6H 2 O, 99.00 % Aldrich) was dissolved in an aqueous HNO 3 solution (0.02 M) contained in a round bottom flask.…”

Development of Thick Superhydrophilic TiO2–ZrO2 Transparent Coatings Realized through the Inclusion of Poly(methyl methacrylate) and Pluronic-F127

“…Raman fundamental modes for anatase TiO 2 are appearing at 144 (E g ), 399 (B 1g ), 519 (B 1g ), and 639 cm –1 (E g ), respectively, whereas those of rutile occur at 143 cm –1 (B 1g ), 447 cm –1 (E g ), 612 cm –1 (A 1g ), and 826 cm –1 (B 2g ). 24 It is obvious that the positions of some Raman bands of TiO 2 and ZrO 2 are in close proximity because of which it is difficult to distinguish them in the spectra. Eight peaks can be observed at 180, 433, 510, 565, 663, 824, 887, and 947 cm –1 for the TZPPF film, and these peaks belong to the fundamental vibrations of TiO 2 and ZrO 2 .…”