Fast synthesis of Na2Ti3O7 system synthesized by microwave-assisted hydrothermal method: Electrical properties

Sonochemical Synthesis and Characterization of the Biphasic Compound Na2Ti3O7/ Na2Ti6O13

“…The detailed study regarding the phase composition and the unit cell parameters was performed using the Rietveld refinement method via the FullProf package software 9 . The lattice parameters (a, b, c, α, β, γ), unit cell volume (V) atomic coordinates (x, y, z), background, Cagliote parameters of Pseudo-Voigt function (U, V and W), thermal anisotropic factor (B iso ) and occupation, O cc were also refined 1,[10][11][12][13][14][15] . The quality of computed data was checked using R quality indicators (R exp , R p , R wp and χ 2 ), as well as the profile of the residual line (Y obs -Y cal ) 16 .…”

“…The main phases, trititanate and hexatitanate, (Na 2 Ti 3 O 7 and Na 2 Ti 6 O 13 ) of the sodium titanate family have been extensively studied in recent years due to their interesting physical and chemical properties 1,2 . These phases present, as a fundamental structural characteristic, a monoclinic crystalline structure, however there is a variation in the shape and position in which the Na + ion appears with the oxygen.…”

“…These phases present, as a fundamental structural characteristic, a monoclinic crystalline structure, however there is a variation in the shape and position in which the Na + ion appears with the oxygen. This leads to structural organization in the layers for Na 2 Ti 3 O 7 and the tunnels for Na 2 Ti 6 O 13 1,2 . These characteristics make the trititanate interesting from the point of view of its electrical properties, since it has a higher density of charge carriers 1 .…”

“…This leads to structural organization in the layers for Na 2 Ti 3 O 7 and the tunnels for Na 2 Ti 6 O 13 1,2 . These characteristics make the trititanate interesting from the point of view of its electrical properties, since it has a higher density of charge carriers 1 . In the case of hexatitanate, the tunnel shape of its crystalline structure facilitates the presence of a large number of conduction paths 3 .…”

“…In the case of hexatitanate, the tunnel shape of its crystalline structure facilitates the presence of a large number of conduction paths 3 . Recently, several studies have been published revealing the electrical characteristics of ceramics in both the crystalline phases 1,[3][4][5] . However, there is very little information in the literature from the point of view of their electrical properties and what occurs in sodium titanate ceramics that have phase mixtures.…”