Since joining PNNL in 1976, Dr. Baer has specialized in the use of
surface sensitive techniques to study surface and interphase
reactions and material surface chemistry. He specializes in
adapting established and new surface sensitive methods to
unusual problems and has more than 220 publications. Specific
research activities include study of the reaction properties and
environmental variability of nanoparticles, synthesis and properties
of oxide nanostructures, nanoparticle preparation and
characterization for toxicology studies, corrosion and stress
corrosion cracking, and the surface chemistry and reactivity of
calcite. He has direct experience with vacuum-based surface
analysis methods (XPS, AES, SIMS) and methods used for direct
analysis of the solid-solution interface (atomic force microscopy,
electrochemical characterization).