Published February 27, 2008 | Version v1
Journal article Metadata-only

Synthesis and characterization of monodisperse ultra-thin silica-coated magnetic nanoparticles

Creators

  • 1. Advanced Materials Research Institute, Department of Chemistry, University of New Orleans, New Orleans, LA 70148 (United States)

Description

A systematic study of the formation of silica-coated magnetite particles via a modified reverse microemulsion approach was investigated by using transmission electron microscopy (TEM), x-ray diffraction (XRD) and a superconducting quantum interference device (SQUID). The results show that the surfactant Igepal CO-520 played an important role in the reaction system, and the thickness of the silica shell could be controlled by the concentration of the reaction agents. The developed ultra-thin silica-coated magnetic particles with a ∼2 nm thin silica shell have a high saturated magnetization around 15 emu g-1

Availability note (English)

Available from http://dx.doi.org/10.1088/0957-4484/19/8/085601

Additional details

Identifiers

DOI
10.1088/0957-4484/19/8/085601;
PII
S0957-4484(08)63390-5;

Publishing Information

Journal Title
Nanotechnology (Print)
Journal Volume
19
Journal Issue
8
Journal Page Range
[5 p.]
ISSN
0957-4484

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
39105280
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
COATINGS; MAGNETITE; MAGNETIZATION; MICROEMULSIONS; NANOSTRUCTURES; PARTICLES; SHELLS; SILICA; SQUID DEVICES; SYNTHESIS; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION
Descriptors DEC
COHERENT SCATTERING; COLLOIDS; DIFFRACTION; DISPERSIONS; ELECTRON MICROSCOPY; ELECTRONIC EQUIPMENT; EMULSIONS; EQUIPMENT; FLUXMETERS; IRON ORES; MEASURING INSTRUMENTS; MICROSCOPY; MICROWAVE EQUIPMENT; MINERALS; ORES; OXIDE MINERALS; SCATTERING; SUPERCONDUCTING DEVICES