Novel methods for the synthesis of magnetite nanoparticles with special morphologies and textured assemblages

Ilona Nyiro-Kosa, Aleksander Rečnik, M. Pósfai

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

There is an increasing technological demand for magnetic nanocrystals with special morphologies and controlled sizes. Several approaches are used for the synthesis of magnetite crystals with irregular or octahedral shapes; however, the roomtemperature synthesis of nanocrystals with specific morphologies is not yet established. Here, we describe the synthesis of magnetite crystals (100-300 nm) at a relatively low temperature (̃70 °C) from organic precursors, including Fe(II) oxalate or Fe(II) sulfate, and study the effects of ethylene glycol and tetraethylene glycol on the final physical and chemical properties of the crystals. The magnetite crystals formed from different precursor materials (sulfate or oxalate green rust) show specific morphological and textural features. We show that octahedral magnetite crystals can be produced from Fe(II) oxalate via a simple co-precipitation process. Using different kinds and amounts of polyols, various types of particle morphologies and nanocrystal textures can be produced, including hexagonal-shaped clusters of elongated crystals and porous and solid, large, rounded polycrystalline aggregates.

Original languageEnglish
Article number1150
JournalJournal of Nanoparticle Research
Volume14
Issue number10
DOIs
Publication statusPublished - 2012

Fingerprint

Magnetite Nanoparticles
Magnetite nanoparticles
magnetite
Ferrosoferric Oxide
Nanoparticles
Crystal
Magnetite
Synthesis
nanoparticles
Crystals
Oxalates
Nanocrystals
oxalates
synthesis
crystals
nanocrystals
Precursor
Sulfates
glycols
sulfates

Keywords

  • Low-temperature precipitation
  • Magnetite
  • Special morphology
  • Transmission electron microscopy

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Modelling and Simulation
  • Chemistry(all)
  • Materials Science(all)
  • Bioengineering

Cite this

Novel methods for the synthesis of magnetite nanoparticles with special morphologies and textured assemblages. / Nyiro-Kosa, Ilona; Rečnik, Aleksander; Pósfai, M.

In: Journal of Nanoparticle Research, Vol. 14, No. 10, 1150, 2012.

Research output: Contribution to journalArticle

@article{b67f9463c3814cb1a93b7cb70b0d3b1e,
title = "Novel methods for the synthesis of magnetite nanoparticles with special morphologies and textured assemblages",
abstract = "There is an increasing technological demand for magnetic nanocrystals with special morphologies and controlled sizes. Several approaches are used for the synthesis of magnetite crystals with irregular or octahedral shapes; however, the roomtemperature synthesis of nanocrystals with specific morphologies is not yet established. Here, we describe the synthesis of magnetite crystals (100-300 nm) at a relatively low temperature (̃70 °C) from organic precursors, including Fe(II) oxalate or Fe(II) sulfate, and study the effects of ethylene glycol and tetraethylene glycol on the final physical and chemical properties of the crystals. The magnetite crystals formed from different precursor materials (sulfate or oxalate green rust) show specific morphological and textural features. We show that octahedral magnetite crystals can be produced from Fe(II) oxalate via a simple co-precipitation process. Using different kinds and amounts of polyols, various types of particle morphologies and nanocrystal textures can be produced, including hexagonal-shaped clusters of elongated crystals and porous and solid, large, rounded polycrystalline aggregates.",
keywords = "Low-temperature precipitation, Magnetite, Special morphology, Transmission electron microscopy",
author = "Ilona Nyiro-Kosa and Aleksander Rečnik and M. P{\'o}sfai",
year = "2012",
doi = "10.1007/s11051-012-1150-8",
language = "English",
volume = "14",
journal = "Journal of Nanoparticle Research",
issn = "1388-0764",
publisher = "Springer Netherlands",
number = "10",

}

TY - JOUR

T1 - Novel methods for the synthesis of magnetite nanoparticles with special morphologies and textured assemblages

AU - Nyiro-Kosa, Ilona

AU - Rečnik, Aleksander

AU - Pósfai, M.

PY - 2012

Y1 - 2012

N2 - There is an increasing technological demand for magnetic nanocrystals with special morphologies and controlled sizes. Several approaches are used for the synthesis of magnetite crystals with irregular or octahedral shapes; however, the roomtemperature synthesis of nanocrystals with specific morphologies is not yet established. Here, we describe the synthesis of magnetite crystals (100-300 nm) at a relatively low temperature (̃70 °C) from organic precursors, including Fe(II) oxalate or Fe(II) sulfate, and study the effects of ethylene glycol and tetraethylene glycol on the final physical and chemical properties of the crystals. The magnetite crystals formed from different precursor materials (sulfate or oxalate green rust) show specific morphological and textural features. We show that octahedral magnetite crystals can be produced from Fe(II) oxalate via a simple co-precipitation process. Using different kinds and amounts of polyols, various types of particle morphologies and nanocrystal textures can be produced, including hexagonal-shaped clusters of elongated crystals and porous and solid, large, rounded polycrystalline aggregates.

AB - There is an increasing technological demand for magnetic nanocrystals with special morphologies and controlled sizes. Several approaches are used for the synthesis of magnetite crystals with irregular or octahedral shapes; however, the roomtemperature synthesis of nanocrystals with specific morphologies is not yet established. Here, we describe the synthesis of magnetite crystals (100-300 nm) at a relatively low temperature (̃70 °C) from organic precursors, including Fe(II) oxalate or Fe(II) sulfate, and study the effects of ethylene glycol and tetraethylene glycol on the final physical and chemical properties of the crystals. The magnetite crystals formed from different precursor materials (sulfate or oxalate green rust) show specific morphological and textural features. We show that octahedral magnetite crystals can be produced from Fe(II) oxalate via a simple co-precipitation process. Using different kinds and amounts of polyols, various types of particle morphologies and nanocrystal textures can be produced, including hexagonal-shaped clusters of elongated crystals and porous and solid, large, rounded polycrystalline aggregates.

KW - Low-temperature precipitation

KW - Magnetite

KW - Special morphology

KW - Transmission electron microscopy

UR - http://www.scopus.com/inward/record.url?scp=84866506664&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84866506664&partnerID=8YFLogxK

U2 - 10.1007/s11051-012-1150-8

DO - 10.1007/s11051-012-1150-8

M3 - Article

AN - SCOPUS:84866506664

VL - 14

JO - Journal of Nanoparticle Research

JF - Journal of Nanoparticle Research

SN - 1388-0764

IS - 10

M1 - 1150

ER -