Professional Experience

University of California, Davis, Department of Chemical Engineering and Materials Science: Professor, 1992-2003; Distinguished Professor, 2003- .
University of Delaware, Department of Chemical Engineering: Assistant Professor, 1969-1973; Associate Professor, 1973-1977; Professor, 1977-1985; H. Rodney Sharp Professor, 1985-1992.
Center for Catalytic Science and Technology, Associate Director, 1977-1981, 1988-1992; Director, 1981-1988. Department of Chemistry, Professor, 1987-1992.
Chevron Research Co., Richmond, CA, Research Engineer, 1967- 1969.
University of Munich, Institute of Physical Chemistry, Post- doctoral Fellow, 1966-1967; Visiting Professor, 1975-1976; 1983-1984; 1990-91; 1998-99.