Continue study of nano-Co synthesized by pea (Pisum Sativum L.) and lucerne (Medicago Sativa L.).

Our research group reports the synthesis on nano-Co using; Co₃O₄ (STREM CHEMICALS) reagent, analyzed by X-ray powder diffraction, (XRD) with concerning a hexagonal unit cell (PDF 43-1003) and 3% of iron oxides (PDF: 8-0097) impurities.

Lucerne oxidizes Co₃O₄ by its growing process; all vegetables need oxygen to grow (we are working in the mechanism by which lucerne do that). The lucerne is a natural nano-synthesizer; by HRTEM it is visualized Co shape and size of the nano-crystals in lucerne. Co is distributing in small highly symmetric complex similar to virus structure in infected cells. In pea the results are not that clear, we visualized the Co agglomerate by HRTEM in the root.

Due to the interest in the structural properties of nano-cobalt synthesized, the contaminated samples were allowed to dry under room conditions during 29 days. Then plats were grind, and as we know we have metallic Co inside the plat, so using a magnet we separated the organic part which contained it. Finally they were analyzed with XRD, one study for lucerne and other for pea.
Because of in the XRD analysis the proportion of Co were less than 1% (plants were contaminated with 0.05 g of Co3O4) result showed us only the diffraction of the organic part.