Sol gel and ceramic synthesis of Sr₂FeMo_1−xW_xO₆ (0 ≤ x ≤ 1) double perovskites series

Abstract

Optimization of pure phase double perovskite series via sol–gel methods.

Combined effects of hole doping and off-stoichiometry on the structures, transport, and magnetic properties of Sr(2−y)NayFe(1−x)Mo(1+x)O6 (x = 0/5x = y; y = 0, 0.05, 0.1, 0.15, 0.2, and 0.3)

“…The magnetic and transport data were obtained using a physical property measurements system (PPMS Quantum Design, 2001NUGC). It can be clearly seen that all the diffraction peaks are in accordance with double perovskite structure with a tetragonal phase and a space group of I4/m, 1,10,37 and no other impurities are detected. This implies that the C0-C10 compositions are single-phased.…”

Sol-gel synthesized double perovskite Gd2FeCrO6 nanoparticles: Structural, magnetic and optical properties

“…To the best of our knowledge, synthesis and characterization of nanostructured Gd 2 FeCrO 6 (GFCO) double perovskite have not been reported yet. Therefore, in the current investigation, we have synthesized GFCO nanoparticles by adapting a low-cost facile sol-gel method [32] and investigated their crystallographic structure, chemical composition along with magnetic and optical properties extensively. Finally, the potential applicability of this newly synthesized material in the field of photocatalysis and oxygen evolution was discussed in view of its favorable band gap as well as band edge position.…”

Synthesis and Study of the Effect of Ba2+ Cations Substitution with Sr2+ Cations on Structural and Optical Properties of Ba2−xSrxZnWO6 Double Perovskite Oxides (x = 0.00, 0.25, 0.50, 0.75, 1.00)

“…The double-perovskite oxide compounds have a very high flexibility in crystal structure and chemical composition, where it is possible to vaccinate or replace the A-sites and B-sites cations with the continuation of the octahedra network connection [1,11] such as Sr 2 FeMo 1− x W x O 6 (where 0 ≤ x ≤ 1) [12], Ba 2 Mg 1− x Ca x WO 6 (where 0.0 ≤ x ≤ 0.15) [13], Ca 3 WO 6 :Dy 3+ [14], Sr 2 MWO 6 (where M = Co, Ni) [15], and Sr 2 Ca 1−2 x Eu x Na x MoO 6 [16]. In this study, we use XRD, SEM, Fourier transform infrared (FTIR) spectroscopy, photoluminescence, and UV-Vis diffuse reflectance to study the structure and optical properties of the Ba 2− x Sr x ZnWO 6 double perovskite series ( x = 0.00, 0.25, 0.50, 0.75, 1.00) and discuss the effect of Ba 2+ cation substitution with Sr 2+ cations in series behavior.…”