Hydrothermal synthesis of tetragonal barium titanate nanopowders under moderate conditions

Abstract

Monodispersed tetragonal barium titanate (BaTiO3) nanopowders were synthesized by a convenient hydrothermal route at a low temperature of 200?C in only 24 h. The key point of this method is to promote the generation of ultrafine titanium hydroxide precipitation precursors with the help of absolute ethyl alcohol and ammonia solution during the hydrolysis of Ti(OC4H9)4. The results of X-ray diffraction and Raman spectra show that the as-prepared BaTiO3 nanopowders possess tetragonal-dominant structure. The synthesized tetragonal BaTiO3 nanopowders exhibit relatively uniform size and good dispersity, with the average particle size of 96.1 nm and a tetragonality of 1.0073, which enable broad application prospects in the field of multilayer ceramic capacitors.

A Facile and Eco-Friendly Hydrothermal Synthesis of High Tetragonal Barium Titanate with Uniform and Controllable Particle Size

“…Table S4: Comparison of dual regulations of tetragonality and particle size prepared by the hydrothermal method. References [51][52][53][54][55] are cited in the Supplementary Materials.…”

Internal Wireless Electrical Stimulation from Piezoelectric Barium Titanate Nanoparticles as a New Strategy for the Treatment of Triple-Negative Breast Cancer

“…In addition to the commercial cubic BTO, tetragonal unpolarized barium titanate (U-BTO) and polarized barium titanate (P-BTO) were synthesized by the hydrothermal method. 28 Briefly, 25 mM C 16 H 36 O 4 Ti was dissolved in 25 mL of ethanol anhydrous and mixed with 35 mM 8 . Then, 5 mL of diethanolamine was slowly added to the mixture and finally dried at 200 °C for 24 h to obtain tetragonal U-BTO.…”

Giant effect on structural, magnetic, electrical, and optical properties of lead-free Ba0.6Sr0.4Ti1-xAlxO3 ceramics via Sr and Al Co-doping engineering

“…1 3.12 X=0. 15 3.08 X=0. 2 3.02 demonstrates that all compositions have mild ferromagnetic characteristics at room temperature.…”

“…Numerous methods have been used to synthesize BST nanostructures, including hydrothermal approaches [15], sol-gel [16], Chemical deposition [17], ball milling [18], Solvothermal [19], co-precipitation [20], Neutron diffraction [21], Tartrate precursor [22], Blinder jetting [23], and solid-state technique [24]. Researchers have experimented with BT and BST in the presence of a variety of dopants, including Bi [25], Ca [26], Dy [27], Er [28], Eu [29], Fe [30], Ho [31], Hf [32], La [33], Nb [34], Rh [35], Sb [36], Sn [37], V [18], Y [38], Zn [39], and Zr [40].…”