- Collection:
- Atlanta University and Clark Atlanta University Theses and Dissertations
- Title:
- A diffuse reflectance Fourier transform infrared study of the adsorption and decomposition of dimethyl methylphosphonate on copper oxide supported alumina, 2003
- Creator:
- Gatimu, Enid N.
- Date of Original:
- 2003-05-01
- Subject:
- Degrees, Academic
Dissertations, Academic - Location:
- United States, Georgia, Fulton County, Atlanta, 33.749, -84.38798
- Medium:
- theses
- Type:
- Text
- Format:
- application/pdf
- Description:
- The adsorption and decomposition characteristics of dimethyl methylphosphonate (DMMP) were studied over copper oxide supported y alumina using diffuse reflectance fourier transform infrared spectroscopy. Our studies indicate that DMMP adsorbs molecularly on the surface of the alumina samples that contained a copper oxide content of less than 1%. This molecular adsorption was primarily via the P=0 bond on the DMMP molecule to a surface site on the metal oxide surface. At copper oxide coverages of higher than 1%, dissociative adsorption of DMMP was observed. There are two mechanisms identified for the dissociative adsorption of DMMP on the surface. One that involves the P=0 bond attaching to a Lewis site on the surface of the supported metal oxide and the other that involves a nucleophilic attack of the phosphorus atom of the DMMP molecule by a surface hydroxyl or oxygen atom
- External Identifiers:
- Metadata URL:
- http://hdl.handle.net/20.500.12322/cau.td:2003_gatimu_enid_n
- Rights Holder:
- Clark Atlanta University
- Holding Institution:
- Atlanta University Center Robert W. Woodruff Library
- Rights:
-
