GEOCTuesday, March 30, 2004

8:00 AM-11:40 AM Marriott -- Marquis NW, Oral
Interfacial Phenomena: Linking Atomistic and Macroscopic Properties
Theoretical and Experimental Studies of the Structure and Reactivity of Mineral Surfaces
Organizers:David J. Wesolowski
Gordon E. Brown Jr.
8:00 AM Introductory Remarks
8:10 AM 65Predicting the impact of the environment on the structure and chemistry of metal oxide surfaces
Anne M. Chaka
8:40 AM 66Crystal truncation rod diffraction study of the hydrated hematite (1-102) surface
Thomas P. Trainor, Peter J. Eng, Jeffrey G. Catalano, Gordon E. Brown Jr., Glenn Waychunas
9:00 AM 67Surface EXAFS and diffraction study of arsenate sorption on hematite single crystals
Glenn Waychunas, Thomas P. Trainor, Peter Eng, Matthew Newville, Jeffrey G. Catalano, Gordon E. Brown Jr.
9:20 AM 68Atomic structure at rutile TiO2 (110)-aqueous interface with crystal truncation rod measurements
Zhan Zhang, Paul Fenter, Michael J. Bedzyk, Neil C. Sturchio, Michael L. Machesky, David J. Wesolowski
9:40 AM Intermission
9:50 AM 69Periodic density functional theory calculations of the TiO2-H2O interface and Zn(II) adsorption onto the (110) face of rutile
J. D. Kubicki, A. V. Bandura
10:10 AM 70Hydrogen bonding and hydrolysis at the rutile-water interface: Ab initio and molecular dynamics insights and implications for surface complexation modeling
Michael L. Machesky, James D. Kubicki, A. V. Bandura, Milan Predota, David J. Wesolowski, Moira K. Ridley, Pascale Bénézeth
10:30 AM 71New approach for predicting acidity constants: Combining bond-valence and ab initio methods
Barry R. Bickmore, Christopher J. Tadanier, Kevin M Rosso
10:50 AM 72Neutron scattering from interfacial systems
Robert K Thomas
11:20 AM 73Importance of defects on the reactivity of pyrite
Martin A Schoonen, Daniel R Strongin

Interfacial Phenomena: Linking Atomistic and Macroscopic Properties -- Next Session

Symposium Grid -- Division of Geochemistry -- Session Listing

The 227th ACS National Meeting, Anaheim, CA, March 28-April 1, 2004