Title page for ETD etd-12122006-165629


Type of Document Master's Thesis
Author Milojevich, Allyn Katherine
URN etd-12122006-165629
Title Hafnium Dioxide Nanoparticle Thin Film Morphology and Reactivity with Dimethyl Methylphosphonate
Degree Master of Science
Department Chemistry
Advisory Committee
Advisor Name Title
Morris, John R. Committee Chair
Brewer, Karen J. Committee Member
Dillard, John G. Committee Member
Keywords
  • organophosphonate
  • dimethyl methylphosphonate
  • DMMP
  • hafnium dioxide
Date of Defense 2006-11-28
Availability restricted
Abstract
Organophosphonates have been used as simulants of highly toxic compounds such as chemical warfare agents in the study of the decomposition reactions that occur on the surface of hafnium dioxide. Metal oxide and metal-oxide nanoparticles have been shown to decompose organophosphonate molecules. In this study, high surface area hafnium oxide nanoparticles are synthesized via laser ablation. This creates nanoparticles that are free of contaminants and have a narrow size distribution. The particles are characterized by atomic force microscopy and scanning electron microscopy to determine particle size and thin film morphology. Once characterized, they are exposed to dimethyl methylphosphonate and the surface reaction is analyzed by reflection-absorption infrared spectroscopy.
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