AVS 51st International Symposium
    Applied Surface Science Thursday Sessions
       Session AS-ThA

Paper AS-ThA4
Physical and Chemical Properties of Iron and Iron-Oxide Nanoparticles @footnote 1@

Thursday, November 18, 2004, 3:00 pm, Room 210A

Session: Fuel Cell, Catalytic, and Nanomaterials Characterization
Presenter: D.R. Baer, Pacific Northwest National Laboratory
Authors: D.R. Baer, Pacific Northwest National Laboratory
J.E. Amonette, Pacific Northwest National Laboratory
J. Antony, University of Idaho
J.C. Linehan, Pacific Northwest National Laboratory
D.W. Matson, Pacific Northwest National Laboratory
J.T. Nurmi, Oregon Health and Sciences University
K.H. Pecher, Pacific Northwest National Laboratory
R.L. Penn, University of Minnesota
Y. Qiang, University of Idaho
P.G. Tratnyek, Oregon Health and Sciences University
Correspondent: Click to Email
Iron particles in solution have interesting and potentially useful chemical properties, including an ability to reduce chlorinated hydrocarbons in geochemical environments. Reaction studies indicate that the dechlorination reaction pathway can be altered by the structure and chemistry of the nanoparticles. To understand some of these effects we are synthesizing, characterizing, and examining the properties of Fe nanoparticles using a variety of methods. We have synthesized particles in solution and by vapor deposition methods and obtained commercially available materials for detailed study. Methods of particle characterization include TEM, XAS, Mossbauer, XRD, and XPS. A variety of properties are being examined including stability, physical, chemical and electronic structure, magnetic properties and reactivity. Similarities and differences of particles formed in different ways will be discussed along with results relating to particle stability and the impact of particle preparation and processing on reactivity in solution. @FootnoteText@ @footnote 1@ This work is supported by the US Department of Energy Office of Science and parts of the work were performed in the Environmental Molecular Sciences Laboratory a national scientific user facility sponsored by the DoE's Office of Biological and Environmental Research.