Joseph S. Francisco

University of Pennsylvania
Chemist; Educator
Mathematical and Physical Sciences
Member Since
President's Distinguished Professor of Earth and Environmental Science and Professor of Chemistry. Research merged physical chemistry tools with atmospheric sciences to enable deeper understanding, at a molecular level, of chemical processes in the atmosphere. Discovered new class of association species involving radical-molecule complexes, held together by strong hydrogen bonding. Mapping of photo-oxidation pathways laid foundation for understanding atmospheric chemistry of proposed alternative halocarbons. Research in chlorofluorocarbons showed their contributions to atmospheric global warming. Current research focus is on chemistry and photochemistry of atmospheric species on the surfaces/interface of clouds and aerosol. President of the American Chemical Society (2010). Atmospheric science and ocean editor, Journal of Pure and Applied Geophysics, and Associate Editor, Journal of the American Chemical Society.
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