Synthesis of magnetic and multiferroic materials from polyvinyl alcohol-based gels

Synthesis of Ce:YIG nanopowder by gel combustion

“…Nitrates of the yttrium, cerium, iron, gallium and polyvinyl alcohol (PVA) were used as starting reagents for the preparation of Y 3−x Ce x (Fe 1−y Ga y ) 5 O 12 garnets. The efficiency of PVA application for the synthesis of cation-substituted garnets by gel combustion was shown earlier [12,20,22]. Due to the hydrophilic OH groups, polyvinyl alcohol ensures the complexation process, which contributes to the uniform distribution of hydrated metal cations in the gel structure, prevents segregation and the formation of undesirable individual oxide compounds during solution evaporation.…”

“…For the synthesis of the samples, the method of the gel combustion was chosen [12,13], the advantages of which are largely associated with the short duration of the high-temperature stage of decomposition of the gel-like precursor, which contributes to the relatively rapid formation of the crystalline phase, hinders the formation of undesirable impurities and makes it possible to obtain nanosized polycrystalline powder materials [17][18][19][20][21]. Nitrates of the yttrium, cerium, iron, gallium and polyvinyl alcohol (PVA) were used as starting reagents for the preparation of Y 3−x Ce x (Fe 1−y Ga y ) 5 O 12 garnets.…”

A thorough Investigation of Rare-Earth Dy3+ Substituted Cobalt-Chromium Ferrite and Its Magnetoelectric Nanocomposite

“…In general, controllable and rational processing determine the morphology of nanoparticles, therefore attention should have been given to improve the controllability and designability of nanoparticle preparation [ 19 , 20 ]. Therefore, in the present work, the samples were synthesized by the sol-gel auto-combustion method considering that sol-gel method has numerous advantages, such as low temperature, cost-effective, requiring less time and fast reaction time [ 21 , 22 , 23 ].…”