Wet milling versus co-precipitation in magnetite ferrofluid preparation

L. Almásy, Dorina Creanga, Claudia Nadejde, L. Rosta, Ekaterina Pomjakushina, Manuela Ursache-Oprisan

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Various uses of ferrofluids for technical applications continuously raise interest in the improvement and optimization of the preparation methods. This paper deals with the preparation of finely granulated magnetite particles coated with oleic acid in hydrocarbon suspensions following either chemical co-precipitation from iron salt precursors or wet milling of micron size magnetite powder with the goal to compare the benefits and disadvantages of each method. Microstructural measurements showed that both methods gave similarsized magnetite particles of 10-15 nm. The wet-milled magnetite suspension had a higher saturation magnetization than that obtained in the relatively rapid co-precipitation synthesis. The different efficacies of ferrophase incorporation into kerosene could be related to the different mechanisms of oleic acid bonding to the surface of the nanoparticles. Comparative data showed that wet milling represents a viable alternative to the traditional co-precipitation method since despite of longer processing time, the impact of chemicals on the environment and remnant water in the final product could be avoided.

Original languageEnglish
Pages (from-to)367-376
Number of pages10
JournalJournal of the Serbian Chemical Society
Volume80
Issue number3
DOIs
Publication statusPublished - 2015

Fingerprint

Ferrosoferric Oxide
Magnetic fluids
Coprecipitation
Oleic Acid
Suspensions
Kerosene
Saturation magnetization
Hydrocarbons
Powders
Iron
Salts
Nanoparticles
Water
Processing

Keywords

  • IR spectra
  • Kerosene suspensions
  • Magnetite nanoparticles
  • Magnetometry
  • TEM
  • X-ray diffraction

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Wet milling versus co-precipitation in magnetite ferrofluid preparation. / Almásy, L.; Creanga, Dorina; Nadejde, Claudia; Rosta, L.; Pomjakushina, Ekaterina; Ursache-Oprisan, Manuela.

In: Journal of the Serbian Chemical Society, Vol. 80, No. 3, 2015, p. 367-376.

Research output: Contribution to journalArticle

Almásy, L. ; Creanga, Dorina ; Nadejde, Claudia ; Rosta, L. ; Pomjakushina, Ekaterina ; Ursache-Oprisan, Manuela. / Wet milling versus co-precipitation in magnetite ferrofluid preparation. In: Journal of the Serbian Chemical Society. 2015 ; Vol. 80, No. 3. pp. 367-376.
@article{969a573c34c34e409a0e916b03881933,
title = "Wet milling versus co-precipitation in magnetite ferrofluid preparation",
abstract = "Various uses of ferrofluids for technical applications continuously raise interest in the improvement and optimization of the preparation methods. This paper deals with the preparation of finely granulated magnetite particles coated with oleic acid in hydrocarbon suspensions following either chemical co-precipitation from iron salt precursors or wet milling of micron size magnetite powder with the goal to compare the benefits and disadvantages of each method. Microstructural measurements showed that both methods gave similarsized magnetite particles of 10-15 nm. The wet-milled magnetite suspension had a higher saturation magnetization than that obtained in the relatively rapid co-precipitation synthesis. The different efficacies of ferrophase incorporation into kerosene could be related to the different mechanisms of oleic acid bonding to the surface of the nanoparticles. Comparative data showed that wet milling represents a viable alternative to the traditional co-precipitation method since despite of longer processing time, the impact of chemicals on the environment and remnant water in the final product could be avoided.",
keywords = "IR spectra, Kerosene suspensions, Magnetite nanoparticles, Magnetometry, TEM, X-ray diffraction",
author = "L. Alm{\'a}sy and Dorina Creanga and Claudia Nadejde and L. Rosta and Ekaterina Pomjakushina and Manuela Ursache-Oprisan",
year = "2015",
doi = "10.2298/JSC140313053A",
language = "English",
volume = "80",
pages = "367--376",
journal = "Journal of the Serbian Chemical Society",
issn = "0352-5139",
publisher = "Serbian Chemical Society",
number = "3",

}

TY - JOUR

T1 - Wet milling versus co-precipitation in magnetite ferrofluid preparation

AU - Almásy, L.

AU - Creanga, Dorina

AU - Nadejde, Claudia

AU - Rosta, L.

AU - Pomjakushina, Ekaterina

AU - Ursache-Oprisan, Manuela

PY - 2015

Y1 - 2015

N2 - Various uses of ferrofluids for technical applications continuously raise interest in the improvement and optimization of the preparation methods. This paper deals with the preparation of finely granulated magnetite particles coated with oleic acid in hydrocarbon suspensions following either chemical co-precipitation from iron salt precursors or wet milling of micron size magnetite powder with the goal to compare the benefits and disadvantages of each method. Microstructural measurements showed that both methods gave similarsized magnetite particles of 10-15 nm. The wet-milled magnetite suspension had a higher saturation magnetization than that obtained in the relatively rapid co-precipitation synthesis. The different efficacies of ferrophase incorporation into kerosene could be related to the different mechanisms of oleic acid bonding to the surface of the nanoparticles. Comparative data showed that wet milling represents a viable alternative to the traditional co-precipitation method since despite of longer processing time, the impact of chemicals on the environment and remnant water in the final product could be avoided.

AB - Various uses of ferrofluids for technical applications continuously raise interest in the improvement and optimization of the preparation methods. This paper deals with the preparation of finely granulated magnetite particles coated with oleic acid in hydrocarbon suspensions following either chemical co-precipitation from iron salt precursors or wet milling of micron size magnetite powder with the goal to compare the benefits and disadvantages of each method. Microstructural measurements showed that both methods gave similarsized magnetite particles of 10-15 nm. The wet-milled magnetite suspension had a higher saturation magnetization than that obtained in the relatively rapid co-precipitation synthesis. The different efficacies of ferrophase incorporation into kerosene could be related to the different mechanisms of oleic acid bonding to the surface of the nanoparticles. Comparative data showed that wet milling represents a viable alternative to the traditional co-precipitation method since despite of longer processing time, the impact of chemicals on the environment and remnant water in the final product could be avoided.

KW - IR spectra

KW - Kerosene suspensions

KW - Magnetite nanoparticles

KW - Magnetometry

KW - TEM

KW - X-ray diffraction

UR - http://www.scopus.com/inward/record.url?scp=84930647449&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84930647449&partnerID=8YFLogxK

U2 - 10.2298/JSC140313053A

DO - 10.2298/JSC140313053A

M3 - Article

VL - 80

SP - 367

EP - 376

JO - Journal of the Serbian Chemical Society

JF - Journal of the Serbian Chemical Society

SN - 0352-5139

IS - 3

ER -