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Synthesis, Decomposition and Characterization of Fe and Ni Sulfides and Fe and CO Nanoparticles for Aerospace ApplicationsWe describe several related studies where simple iron, nickel, and cobalt complexes were prepared, decomposed, and characterized for aeronautics (Fischer-Tropsch catalysts) and space (high-fidelity lunar regolith simulant additives) applications. We describe the synthesis and decomposition of several new nickel dithiocarbamate complexes. Decomposition resulted in a somewhat complicated product mix with NiS predominating. The thermogravimetric analysis of fifteen tris(diorganodithiocarbamato)iron(III) has been investigated. Each undergoes substantial mass loss upon pyrolysis in a nitrogen atmosphere between 195 and 370 C, with major mass losses occurring between 279 and 324 C. Steric repulsion between organic substituents generally decreased the decomposition temperature. The product of the pyrolysis was not well defined, but usually consistent with being either FeS or Fe2S3 or a combination of these. Iron nanoparticles were grown in a silica matrix with a long-term goal of introducing native iron into a commercial lunar dust simulant in order to more closely simulate actual lunar regolith. This was also one goal of the iron and nickel sulfide studies. Finally, cobalt nanoparticle synthesis is being studied in order to develop alternatives to crude processing of cobalt salts with ceramic supports for Fischer-Tropsch synthesis.
Document ID
20130013107
Acquisition Source
Glenn Research Center
Document Type
Presentation
Authors
Cowen, Jonathan E. (Case Western Reserve Univ. Cleveland, OH, United States)
Hepp, Aloysius F. (NASA Glenn Research Center Cleveland, OH, United States)
Duffy, Norman V. (Cleveland State Univ. Cleveland, OH, United States)
Jose, Melanie J. (Cleveland State Univ. Cleveland, OH, United States)
Choi, D. B. (Cleveland State Univ. Cleveland, OH, United States)
Brothers, Scott M. (Cleveland State Univ. Cleveland, OH, United States)
Baird, Michael F. (Cleveland State Univ. Cleveland, OH, United States)
Tomsik, Thomas M. (NASA Glenn Research Center Cleveland, OH, United States)
Duraj, Stan A. (Wheeling Jesuit Univ. Wheeling, WV, United States)
Williams, Jennifer N. (Wheeling Jesuit Univ. Wheeling, WV, United States)
Kulis, Michael J. (National Center for Space Exploration Research on Fluids and Combustion Cleveland, OH, United States)
Gaier, James R. (NASA Glenn Research Center Cleveland, OH, United States)
Date Acquired
August 27, 2013
Publication Date
March 18, 2009
Subject Category
Inorganic, Organic And Physical Chemistry
Report/Patent Number
E-17335
Funding Number(s)
WBS: WBS 56W1.02.08.03.16.02
Distribution Limits
Public
Copyright
Public Use Permitted.

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