Microwave-hydrothermal synthesis of barium strontium titanate nanoparticles

Investigation of the hydrothermal crystallisation of the perovskite solid solution NaCe1−La Ti2O6 and its defect chemistry

“…This band was not observed in sintered NaLaTi 2 O 6 confirming that all the O-H containing species are removed upon heating (note that sintering NaCeTi 2 O 6 causes phase separation so IR of that sample was not recorded). Similar results are reported in the literature for perovskites prepared hydrothermally [58,68,70,71]. Noma et al observed a sharp band at around 3500 cm -1 in hydrothermal BaTiO 3 , which they attributed to lattice hydroxyl groups occupying the oxide sites, and a broad band from 3000-3600 cm -1 which was ascribed to surface-adsorbed hydroxyl groups, present either as hydroxide or as water.…”

Microwave Hydrothermal and Solvothermal Processing of Materials and Compounds

“…The particle sizes were about 20-40 nm and increased with increasing the amount of doped Sn 2+ . The H-MW method was used also to synthesize crystalline barium strontium titanate (Ba0.8Sr0.2TiO3) nanoparticles (BST, 40-80 nm) in the temperature range of 100-130 o C (Simoes et al, 2010). Comparing this and conventional techniques, it was shown that the H-MW synthesis route is rapid, cost effective, and could serve as an alternative to obtain BST nanoparticles.…”

Synthesis and Characterization of Fe and Ni Co-Doped Ba0.6Sr0.4Tio3Prepared by Sol-Gel Technique

“…Various preparation methods for BST have been investigated such as solid-state reaction [9], sol-gel [7,10,11], hydrothermal [12,13], spray pyrolysis [14], combustion synthesis [15], and chemical coprecipitation methods [16] and etc. Compared with other methods, solgel process because of its numerous advantages in producing bariumstrontium titanate ceramics has received a strong attention among researchers.…”