Professor Gellman received his BS in Chemistry from the California Institute of Technology in 1981 and his PhD from the University of California, Berkeley, in 1985. Thereafter, he was an ICI postdoctoral fellow at Cambridge University in Physical Chemistry. He became a faculty member of the chemistry department at the University of Illinois before joining Carnegie Mellon in 1992 where he was appointed the Lord Professor of Chemical Engineering in 1999. Prof. Gellman also holds courtesy appointments in Materials Science and Engineering and in Chemistry. From Jan. 2003 – Nov. 2013 Prof. Gellman served as Department Head of Chemical Engineering. He promulgated a $28 million renovation of Doherty Hall between 2004 -2008. Prof. Gellman organized a consortium involving Carnegie Mellon, University of Pittsburgh, and West Virginia University and in 2007 became the founding Director of the Institute for Advanced Energy Solutions, an outgrowth of the Department of Energy - National Energy Technology Laboratory. In 2012 he was appointed co-Director of Carnegie Mellon’s W.E. Scott Institute for Energy Innovation.
Gellman's expertise includes chemical reactions on surfaces, catalysis, and the conversion of molecules from one form to another.