Synthesis and characterization of NiMn2O4 nanoparticles using gelatin as organic precursor

Synthesis of air stable FeCo alloy nanocrystallite by proteic sol–gel method using a rotary oven

“…Furthermore, there are few studies that use oxidation and reduction steps, respectively, during the preparation of magnetic alloys [16,17]. The proteic sol-gel method is quite interesting for the preparation of oxide materials containing nanoparticles, as described before [18][19][20][21], however, this method was not applied for the synthesis of magnetic alloys. The method designated proteic sol-gel method was recently developed, which uses the organic edible gelatin from marine fish or bovine species as organic template.…”

“…The method designated proteic sol-gel method was recently developed, which uses the organic edible gelatin from marine fish or bovine species as organic template. It is important to highlight that this synthetic route presents smaller values of particle size compared to those listed above, including conventional sol-gel and uses organic precursors from a renewable source, providing an eco-friendly method [18][19][20][21]. With the aim of obtaining FeCo nanoparticles more stable against oxidation using a modified method, this work presents the first study for the preparation of FeCo magnetic alloys employing the proteic sol-gel route combined with the use of a rotary oven [22].…”

Synthesis and characterization of NiCo2O4 spinel using gelatin as an organic precursor

“…This process is an alternative way to produce nanoparticles by using an inexpensive and nontoxic precursor. The use of gelatin to produce mixed oxides has been studied by other authors [10][11][12]. However, there are no studies reporting the preparation of nickel cobaltite.…”

Structural, Morphological and Magnetic Properties of FeCo-(Fe,Co)3O4 Nanocomposite Synthesized by Proteic Sol-Gel Method Using a Rotary Oven

“…The uniform contact of the synthesis atmosphere during the oxidation and/or reduction steps may positively influence on the homogeneity of the obtained phases. Some studies show the positive effect of powder agitation during thermal treatment to obtain alloys or oxides isolated (they are not composites) 12,32,33 . In this work, the positive effect of the rotary oven on structural properties was confirmed in the synthesis of FeCo-(Fe,Co) 3 O 4 nanocomposite using gelatin route.…”