Chemical Reactions of Heteroatom Organic Molecules at Metal Oxide Surfaces

摘要

The research is in the area of chemical reactions on surfaces and deals withmolecules and solids that model systems of technological and environmental significance to ARO. In particular, we study heteroatom organic adsorbates containing halogens, sulfur, oxygen, phosphorus and nitrogen. The fundamental surface chemical decomposition kinetics of selected molecules, especially simulants, are studied on metal and metal oxide substrates that model technological materials used to destroy and render them harmless. A study of the properties of a chlorinated hydrocarbon fragment, CH2Cl, derived from CH2ClI, on platinum, a very effective catalyst for the destruction of toxic heteroatom organic molecules was carried out. CF3I was studied on clean and iodine precovered Ag(111). Nonthermal activation of ammonia and sulfur dioxide adsorbed on transition metals was carried out with the goal of developing basic kinetic information concerning adsorbed fragments.