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Joseph S. Francisco

President’s Distinguished Professor


B.S.:  Chemistry, University of Texas at Austin, 1977

Ph.D.: Chemical Physics, Massachusetts Institute of Technology, 1983.

Research Fellow: University of Cambridge, 1983-1985

Provost Postdoctoral Fellow: Massachusetts Institute of Technology, 1985-1986


Research Interests

Atmospheric Chemistry, Tropospheric and Stratospheric Chemical Kinetics and Modeling, Atmospheric Spectroscopy and Photochemistry, Aerosol and Cloud Chemistry

Selected Publications

M. Kumar, and J.S. Francisco, Mechanistic Insight into Ion-Pair Particle Formation from Methanesulfonic Acid-Amines Chemistry at the Air-Water Interface,  Proc. Natl. Acad. Sci. USA., 114, 12401-12406 (2017).


L. Artiglia, J. Edebeli,  F. Orlando, S. Chen, P. C. Arroyo, A. Gilgen, T. Bartels-Rausch, A. Kleibert, M. Vazdar, M. A. Carignano, J.S. Francisco,  P.B. Shepson, I. Gladich, and M. Ammann, A Surface-Stabilized Ozonide Triggers Bromide Oxidation at the Aqueous Solution-Vapor Interface, Nature Communications, 8, 700 (2017).


C.Q. Zhu, J. Zhong, M. Kumar, J.S. Francisco, X.C. Zeng, New Mechanistic Pathways for Creigee-Water Chemistry at the Air/Water Interface  J. Am. Chem. Soc., 138, 11164-11169 (2016).


R. Hoehn, M.A. Carignano, S. Kais,  J.S. Francisco, and  I. Gladich, Hydrogen Bonding and Orientation Effects on the Accommodation of Methylamine at the Air-Water Interface, J. Chem. Phys., 144, 214701 (2016).


M. Kumar, A. Sinha, and J. S. Francisco, Role of Double Hydrogen Atom Transfer Reactions in Atmospheric Chemistry, Acc. Chem. Res., 49, 877- 833 (2016).


M. Kumar and J.S. Francisco, Red-Light Induced Decomposition of Organic Peroxy Radical: A New Source of the HO2 Radical, Angew. Chem. Int. Ed., 54, 15711-15714 (2015).


J.M. Anglada, M. Martins-Costa, M.F. Ruiz-Lopez, J.S. Francisco, Spectroscopic Signatures of Ozone at the Air/Water Interface and Photochemistry Implications, Proc. Natl. Acad. Sci. USA., 111, 11618-11623 (2014).


Fellow of the American Physical Society

Fellow of the American Chemical Society

Fellow of the American Association for the Advancement of Science

Fellow of the American Academy of Arts and Sciences

Member, National Academy of Sciences

Department of Earth and Environmental Science / University of Pennsylvania, 251 Hayden Hall, 240 South 33rd Street, Philadelphia, PA 19104-6316