Bar-shaped nanoparticles of iron(II) hydroxide
Source abstract
Abstract
Formation of elongated nanoparticles was observed when (hbox{Fe}3hbox{O}4) was precipitated from solutions containing excess of Fe2+. The average diameter of the particles was 23 nm; the length to diameter ratio was up to 14. This shape was an unexpected phenomenon because bar- or needle-like nanoparticles have been earlier reported only for Fe(III)-based materials. Chemical analysis revealed Fe(OH)2 nature of the obtained particles. In addition, this conclusion was verified with a new simple method for quantitative evaluation of the particle morphology. Application of this method to the mixed (hbox{Fe(OH)}2/hbox{Fe}3hbox{O}4) samples allowed to distinguish between the two different compounds and to attribute different morphologies to Fe(OH)2 or (hbox{Fe}3hbox{O}4.) Results indicate that bars are frequent shapes of nano-sized iron oxides/hydroxides.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Iron oxide chemistry and applications · Minerals Flotation and Separation Techniques · Magnetic Properties and Synthesis of Ferrites
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (13)
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