Synthesis and characterization of nano-sized CoFe 2 O 4 via facile methods: A comparative study

Sucrose-Assisted Solution Combustion Synthesis of Doped Strontium Ferrate Perovskite-Type Electrocatalysts: Primary Role of the Secondary Fuel

“…For example, Aliotta et al [7], regarding the SCS of Ce 0.8 Sm 0.2 O 2 , hypothesized that sucrose is able to form a gel network where metal cations remain trapped in sucrose-metal cation agglomerates, with a positive effect on the porosity, grain growth, and densification of the powders. This specific template function of sucrose has been reported as well by other authors, highlighting that, by using sucrose as a fuel, high surface area powders with low agglomeration degrees are produced [7,8,[10][11][12][13]. Sucrose is often used to create a reducing environment around a metal cation and govern oxidation states [14].…”

“…Sucrose is often used to create a reducing environment around a metal cation and govern oxidation states [14]. As an additional advantage, in most cases, the use of sucrose allows the combustion reaction to occur without adding ammonia as a pH regulator, which is necessary in the case of traditional citric acid fuel [13]. However, sucrose-assisted combustion has also some drawbacks:The amount of residual carbon is large and the excessive increase in the volume of the light-weight as-burned powder causes powder loss outside of the reaction vessel [2].PEG, a multifunctional polyether compound, is another eco-friendly fuel, often used, alone or mixed with other organics, as a structure-directing agent and/or solvent in sol-gel synthesis [15][16][17][18].…”

“…Sucrose is often used to create a reducing environment around a metal cation and govern oxidation states [14]. As an additional advantage, in most cases, the use of sucrose allows the combustion reaction to occur without adding ammonia as a pH regulator, which is necessary in the case of traditional citric acid fuel [13]. However, sucrose-assisted combustion has also some drawbacks:…”

CoFe2O4 Nanomaterials: Effect of Annealing Temperature on Characterization, Magnetic, Photocatalytic, and Photo-Fenton Properties

“…The synthesis of cobalt ferrite was performed via solution combustion method using urea as fuel [11]. The process commenced with the dissolution of urea in the water, followed by the addition of Co(NO 3 ) 2 •6H 2 O and Fe(NO 3 ) 3 •9H 2 O at an appropriate amount and mole ratio under vigorous stirring.…”

“…To alter structure and magnetic properties of ferrite nanoparticles, it is necessary to modify their composition and microstructures via different preparation routes [2]. CoFe 2 O 4 nanoparticles were previously prepared by a wide array of synthesis routines, such as 2 of 14 sol-gel [3,4], hydrothermal method [5], chemical co-precipitation [6,7], solvothermal [8], solid-state method [9], and solution combustion [10][11][12][13]. For each synthesis method, it was found that the annealed temperature played a key role in determining the structure and properties of the obtained product.…”