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Title: Formation of FePt nanoparticles by organometallic synthesis

Abstract

Our interest in determining the mechanism of FePt nanoparticle formation has led to this study of the evolution of particle size and composition during synthesis. FePt nanoparticles were prepared by the simultaneous reduction of platinum acetylacetonate and thermal decomposition of iron pentacarbonyl. During the course of the reaction, samples were removed and the particle structure, size, and composition were determined using x-ray diffraction, transmission electron microscopy (TEM), and scanning electron microscopy-energy dispersive x-ray spectrometry. Early in the reaction the particles were Pt rich (greater than 95 at. % Pt) and as the reaction proceeded the Fe content increased to the target of 50%. The particle diameter increased from 3.1 to 4.6 nm during the reaction. Energy dispersive x-ray spectrometry measurements of individual particle compositions using a high resolution TEM showed a broad distribution of particle compositions with a standard deviation greater than 15% of the average composition.

Authors:
; ; ; ; ;  [1];  [2];  [2];  [2]
  1. Department of Chemical and Biological Engineering, The University of Alabama, P.O. Box 870203, Tuscaloosa, Alabama 35487 and Center for Materials for Information Technology, The University of Alabama, P.O. Box 870209, Tuscaloosa, Alabama 35487 (United States)
  2. (United States)
Publication Date:
OSTI Identifier:
20982901
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 101; Journal Issue: 10; Other Information: DOI: 10.1063/1.2724330; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CHEMICAL ANALYSIS; IRON; IRON ALLOYS; NANOSTRUCTURES; ORGANOMETALLIC COMPOUNDS; PARTICLE SIZE; PARTICLE STRUCTURE; PARTICLES; PLATINUM; PLATINUM ALLOYS; PYROLYSIS; REDUCTION; SCANNING ELECTRON MICROSCOPY; SYNTHESIS; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION; X-RAY SPECTROSCOPY

Citation Formats

Bagaria, H. G., Johnson, D. T., Srivastava, C., Thompson, G. B., Shamsuzzoha, M., Nikles, D. E., Department of Metallurgical and Materials Engineering, The University of Alabama, P.O. Box 870202, Tuscaloosa, Alabama 35487 and Center for Materials for Information Technology, The University of Alabama, P.O. Box 870209, Tuscaloosa, Alabama 35487, School of Mines and Energy Development, The University of Alabama, Tuscaloosa, Alabama 35487, and Department of Chemistry, The University of Alabama, P.O. Box 870336, Tuscaloosa, Alabama 35487 and Center for Materials for Information Technology, The University of Alabama, P.O. Box 870209, Tuscaloosa, Alabama 35487. Formation of FePt nanoparticles by organometallic synthesis. United States: N. p., 2007. Web. doi:10.1063/1.2724330.
Bagaria, H. G., Johnson, D. T., Srivastava, C., Thompson, G. B., Shamsuzzoha, M., Nikles, D. E., Department of Metallurgical and Materials Engineering, The University of Alabama, P.O. Box 870202, Tuscaloosa, Alabama 35487 and Center for Materials for Information Technology, The University of Alabama, P.O. Box 870209, Tuscaloosa, Alabama 35487, School of Mines and Energy Development, The University of Alabama, Tuscaloosa, Alabama 35487, & Department of Chemistry, The University of Alabama, P.O. Box 870336, Tuscaloosa, Alabama 35487 and Center for Materials for Information Technology, The University of Alabama, P.O. Box 870209, Tuscaloosa, Alabama 35487. Formation of FePt nanoparticles by organometallic synthesis. United States. doi:10.1063/1.2724330.
Bagaria, H. G., Johnson, D. T., Srivastava, C., Thompson, G. B., Shamsuzzoha, M., Nikles, D. E., Department of Metallurgical and Materials Engineering, The University of Alabama, P.O. Box 870202, Tuscaloosa, Alabama 35487 and Center for Materials for Information Technology, The University of Alabama, P.O. Box 870209, Tuscaloosa, Alabama 35487, School of Mines and Energy Development, The University of Alabama, Tuscaloosa, Alabama 35487, and Department of Chemistry, The University of Alabama, P.O. Box 870336, Tuscaloosa, Alabama 35487 and Center for Materials for Information Technology, The University of Alabama, P.O. Box 870209, Tuscaloosa, Alabama 35487. Tue . "Formation of FePt nanoparticles by organometallic synthesis". United States. doi:10.1063/1.2724330.
@article{osti_20982901,
title = {Formation of FePt nanoparticles by organometallic synthesis},
author = {Bagaria, H. G. and Johnson, D. T. and Srivastava, C. and Thompson, G. B. and Shamsuzzoha, M. and Nikles, D. E. and Department of Metallurgical and Materials Engineering, The University of Alabama, P.O. Box 870202, Tuscaloosa, Alabama 35487 and Center for Materials for Information Technology, The University of Alabama, P.O. Box 870209, Tuscaloosa, Alabama 35487 and School of Mines and Energy Development, The University of Alabama, Tuscaloosa, Alabama 35487 and Department of Chemistry, The University of Alabama, P.O. Box 870336, Tuscaloosa, Alabama 35487 and Center for Materials for Information Technology, The University of Alabama, P.O. Box 870209, Tuscaloosa, Alabama 35487},
abstractNote = {Our interest in determining the mechanism of FePt nanoparticle formation has led to this study of the evolution of particle size and composition during synthesis. FePt nanoparticles were prepared by the simultaneous reduction of platinum acetylacetonate and thermal decomposition of iron pentacarbonyl. During the course of the reaction, samples were removed and the particle structure, size, and composition were determined using x-ray diffraction, transmission electron microscopy (TEM), and scanning electron microscopy-energy dispersive x-ray spectrometry. Early in the reaction the particles were Pt rich (greater than 95 at. % Pt) and as the reaction proceeded the Fe content increased to the target of 50%. The particle diameter increased from 3.1 to 4.6 nm during the reaction. Energy dispersive x-ray spectrometry measurements of individual particle compositions using a high resolution TEM showed a broad distribution of particle compositions with a standard deviation greater than 15% of the average composition.},
doi = {10.1063/1.2724330},
journal = {Journal of Applied Physics},
number = 10,
volume = 101,
place = {United States},
year = {Tue May 15 00:00:00 EDT 2007},
month = {Tue May 15 00:00:00 EDT 2007}
}