Air-liquid interfaces of aqueous metal-nitrate solutions

COLL 263

Man Xu, mxu@chemistry.ohio-state.edu1, James P. Larentzos, jplaren@sandia.gov2, Louise J. Criscenti, ljcrisc@sandia.gov2, and Heather C. Allen, allen@chemistry.ohio-state.edu1. (1) Department of Chemistry, The Ohio State University, 100 West 18th Avenue, Columbus, OH 43210, (2) Geochemistry Department, Sandia National Laboratories, Albuquerque, NM 87185
The nature of air-aqueous nitrate interfaces is of prime importance in atmospheric chemistry as well as nuclear waste. Investigations of the air-liquid interface of aqueous metal-nitrate solutions, Mg(NO3)2, Ca(NO3)2 and Sr(NO3)2, are carried out using vibrational sum frequency generation spectroscopy. The sum frequency spectral changes show the effects of different metal cations on the interfacial structure of water and nitrate, revealing that hydration and metal-nitrate ion pairing perturb the interfacial water and nitrate ions.
 

The Physical Chemistry of Environmental Interfaces
6:00 PM-8:00 PM, Monday, April 7, 2008 Morial Convention Center -- Rm. 244/245, Poster

Division of Colloid & Surface Chemistry

The 235th ACS National Meeting, New Orleans, LA, April 6-10, 2008