Low temperature synthesis of pure SrSnO3 and the (BaxSr1−x)SnO3 solid solution by the polymerized complex method

Low temperature synthesis of Ba1−x Sr x SnO3 (x = 0–1) from molten alkali hydroxide flux

“…The variation of lattice constants with the composition is found to obey Vegard's law. The parameters are also consistent with the literature reported values (Udawatte et al 2000). Although SrSnO 3 could be refined as a pseudocubic unit cell, high resolution X-ray diffraction indicates that it crystallizes in orthorhombic structure (Zhang et al 2007).…”

“…Peroxide method involving peroxo precursor requires high calcination temperature of 1000°C (Pfaff 1993). Presence of carbonates has been reported even at a calcination temperature of 1000°C during the synthesis of SrSnO 3 and BaSnO 3 by polymeric complex method (Udawatte et al 2000). In hydrothermal synthesis of these stannates (Buscaglia et al 2003;Lu and Schmidt 2005) at low temperature, the product contains OH -ions in lattice even at a calcination temperature of 1200°C.…”

Chitosan templated synthesis of strontium–iron–oxygen nanocrystalline system

“…The results presented show that chitosan templated synthesis of pseudo-stable Sr-Fe-O systems is possible. The polymeric precursor method is characterized by the formation of a high amount of organic material, favoring the formation of carbonates, mainly when alkaline-earth elements are present [49][50]. Thus, the interaction between these carbonaceous species and orthoferrites or their transient phases, can lead to a mixture of Sr-Fe-O stable phases, with control of size of particles during the thermal treatment.…”

Low temperature synthesis of the microwave dielectric Bi2O3–MgO–Nb2O5 nano powders by metal-citrate method

“…1. The CA and EG were mixed in a molar ratio of 1:4 [15,16] and then Bi(NO 3 ) 3 xH 2 O and Mg(NO 3 ) 2 ·6H 2 O and Nb solution prepared by dissolving Nb(OCH 3 ) 5 in hydrogen peroxide were added to this solution. The solution containing metal ions was stirred at 80 • C so as to promote the solubility.…”