Synthesis and characterization of sodium-titanium phosphates, Na4(TiO)(PO4)2, Na(TiO)PO4, and NaTi2(PO4)3

Effect of Ti ion substitution on the structure of hydroxylapatite

“…However, they attained the band at 875 cm −1 to a possible pyrophosphate group vibrations. 54,55 The bands at 2300 cm −1 may be due to the reaction observed between 1100 • C and 1300 • C.…”

Structural characterization of TiO2–P2O5–CaO glasses by spectroscopy

“…2,22,23 Some authors refer that 630 cm −1 band is associated to regions where vibrations of P-O-P bridges are expected, but it is also reported that this band can be related to another group composed of titanium-oxygen units, the TiO 6 group. 7,11,40,46 Glasses with higher TiO 2 content exhibit the same bands in the Raman spectra. Increase of TiO 2 content results in a small shift of the 1280 band to 1200 cm −1 and a tendency for the disappearance of the 700 and 1175 cm −1 bands.…”

“…The obtained 31 P MAS- Table 2 Positions (cm −1 ) of Raman bands and proposed assignments for xTiO 2 ·(65 − x) P 2 O 5 ·35 CaO glasses (x = 0-30 mol%). 2,7,11,22,23,32,[38][39][40][41][42][43][44][45][46] .…”

Structural changes upon lithium insertion in Ni 0.5 TiOPO 4

“…Moreover, introduction of titanium to metal phosphate compounds may result in a rich structural diversity. Generally, the obtained compounds exhibit three-dimensional structures with dense phases synthesized at high temperatures like the M x TiO(PO 4 ) (x = 1 alkali metal [6,7]; x = 0.5 transition metal [8][9][10][11][12]) and Sr 2 TiO(PO 4 ) 2 [13]. In all the above mentioned structures, the Ti atom adopts an octahedral geometry [TiO 6 ].…”