The Kinetics of Growth of Spherical Iron Crystallites in Mercury

Luborsky, F. E.

doi:10.1021/j150556a017

Cited by 50 publications

(8 citation statements)

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“…For example, the reduction of salts to form nanoparticles was performed in amalgamated sodium, and the reduction of salts is now a common method for the formation of iron nanoparticles in organic phases. A method to form iron through electrodeposition in mercury was patented in 1941,10 and the kinetics of forming iron nanoparticles using this method were investigated in detail by Luborsky 11. Mercury‐based methods were used to produce many of the particles that tested and confirmed the properties of single‐domain magnetic particles, and were a critical technology at the time.…”

Section: Preparationmentioning

confidence: 99%

Synthesis, Properties, and Applications of Iron Nanoparticles

Huber

2005

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Iron, the most ubiquitous of the transition metals and the fourth most plentiful element in the Earth's crust, is the structural backbone of our modern infrastructure. It is therefore ironic that as a nanoparticle, iron has been somewhat neglected in favor of its own oxides, as well as other metals such as cobalt, nickel, gold, and platinum. This is unfortunate, but understandable. Iron's reactivity is important in macroscopic applications (particularly rusting), but is a dominant concern at the nanoscale. Finely divided iron has long been known to be pyrophoric, which is a major reason that iron nanoparticles have not been more fully studied to date. This extreme reactivity has traditionally made iron nanoparticles difficult to study and inconvenient for practical applications. Iron however has a great deal to offer at the nanoscale, including very potent magnetic and catalytic properties. Recent work has begun to take advantage of iron's potential, and work in this field appears to be blossoming.

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Section: Preparationmentioning

confidence: 99%

Synthesis, Properties, and Applications of Iron Nanoparticles

Huber

2005

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1,294

814

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“…Dispersing of iron NPs upon mercury is considered one of the earliest convenient methods for producing well-defined iron NPs. Some methods have also been successfully used for organic-solvent-based procedures 20. However, later mercury-based methods were replaced with organic-solvent-based methods.…”

Section: Introductionmentioning

confidence: 99%

“…Some methods have also been successfully used for organic-solvent-based procedures. 20 However, later mercury-based methods were replaced with organic-solvent-based methods. This change has been due to the toxic nature of mercury vapors, the low solubility of iron in mercury, and the comparative ease of removing organic solvents.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, characterization, applications, and challenges of iron oxide nanoparticles

Ali¹,

Zafar²,

Zia³

et al. 2016

NSA

1,204

549

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Abstract:Recently, iron oxide nanoparticles (NPs) have attracted much consideration due to their unique properties, such as superparamagnetism, surface-to-volume ratio, greater surface area, and easy separation methodology. Various physical, chemical, and biological methods have been adopted to synthesize magnetic NPs with suitable surface chemistry. This review summarizes the methods for the preparation of iron oxide NPs, size and morphology control, and magnetic properties with recent bioengineering, commercial, and industrial applications. Iron oxides exhibit great potential in the fields of life sciences such as biomedicine, agriculture, and environment. Nontoxic conduct and biocompatible applications of magnetic NPs can be enriched further by special surface coating with organic or inorganic molecules, including surfactants, drugs, proteins, starches, enzymes, antibodies, nucleotides, nonionic detergents, and polyelectrolytes. Magnetic NPs can also be directed to an organ, tissue, or tumor using an external magnetic field for hyperthermic treatment of patients. Keeping in mind the current interest in iron NPs, this review is designed to report recent information from synthesis to characterization, and applications of iron NPs.

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“…These high concentrations at start-up can be explained by an extended contact of the lead used for preparation of the eutectic alloy with the surface of a steel melting pot at temperatures higher than 500 • C. However, the decrease in Fe concentration could also be explained by the formation of magnetic iron clusters in the liquid metal that are precipitated within the electromagnetic pump. Such cluster formation was actually observed in mercury, where cluster growth inside the liquid metal is occurring on the submicron scale [24]. Together with Cr, these clusters might then be trapped by magnetic forces near the pump.…”

Section: Discussionmentioning

confidence: 59%

A comparison between the chemical behaviour of lead-gold and lead-bismuth eutectics towards 316L stainless steel

et al. 2013

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Summary Lead-gold eutectic (LGE) has been recently proposed as an alternative target material for high power spallation sources. In order to compare the corrosive properties of LGE to the better-studied eutectic of lead-bismuth (LBE), an isothermal twin-loop made of SS 316L was built and operated at the Institute of Physics of the University of Latvia. We have measured the concentration of steel alloying elements dissolved in both alloys at the end of two test campaigns via ICP-OES. In case of LGE, a pronounced concentration increase of Fe, Ni, Mn and Cr is found in the liquid metal, which is significantly higher compared to LBE. Similar results were obtained during complementary investigations on material samples exposed to both alloys in this twin-loop at 400 ◦C and 450 ◦C. These findings indicate that in contact with LGE, SS 316L steel suffers from substantial chemical attack. Detailed investigations using structure materials other than SS 316L have to be undertaken before qualifying LGE as a serious alternative to LBE.

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The Kinetics of Growth of Spherical Iron Crystallites in Mercury

Cited by 50 publications

References 4 publications

Synthesis, Properties, and Applications of Iron Nanoparticles

Synthesis, Properties, and Applications of Iron Nanoparticles

Synthesis, characterization, applications, and challenges of iron oxide nanoparticles

A comparison between the chemical behaviour of lead-gold and lead-bismuth eutectics towards 316L stainless steel

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