AVS 50th International Symposium
    Applied Surface Science Monday Sessions
       Session AS-MoM

Paper AS-MoM1
Aqueous-derived Planar Proxies: A Connection between Surface Science and Real World Catalysts

Monday, November 3, 2003, 8:20 am, Room 324/325

Session: Practical Surface Science
Presenter: M.J. Kelley, College of William & Mary
Authors: C.F. Conrad, Virginia Institute of Marine Science
C.J. Chisholm-Brause, College of William & Mary
M.J. Kelley, College of William & Mary
Correspondent: Click to Email
Real catalysts typically comprise metal or metal oxide nanoclusters on a high-surface area insulator oxide support, prepared by aqueous chemistry. Researchers seeking to overcome the experimental difficulty of studying such materials with surface science techniques have made model catalysts by physical deposition, akin to microfabrication technology. It has now become possible to prepare planar proxies by all-aqueous methods, closely akin to those for real catalysts. After obtaining a hydrous gamma alumina layer on a metal foil, established aqueous solution techniques were used to prepare planar proxy and high surface area materials together. To verify their equivalence, both sets of materials were examined by ToF/SIMS, XPS, SEM/EDS and EXAFS, and by response to organic probe molecules.