Maria Flytzani-Stephanopoulos
Professor
Department of Chemical & Biological Engineering
4 Colby Street, Rm. 146, Medford, MA 02155
Telephone: 617-627-3048 ~ Fax: 617-627-3991
maria.flytzani-stephanopoulos@tufts.edu

Lab:
Nano Catalysis and Energy Laboratory

Education:
1973 B.S., Chemical Engineering, National Technical University of Athens, Greece
1975 M.S., Chemical Engineering, University of Florida
1978 Ph.D., Chemical Engineering, University of Minnesota

Brief Biography:
Dr. Flytzani-Stephanopoulos joined the Chemical Engineering Faculty of Tufts University as the Raytheon Professor of Pollution Prevention in January 1994. From 1985-93, she was a Principal Research Associate of Chemical Engineering at MIT. Prior to that, she was a member of the Technical Staff at the Jet Propulsion Laboratory, in Pasadena, CA. Her research is in the field of clean energy technologies; specifically she investigates novel nanoscale catalysts and sorbents for air pollutant control in power generation, and for the production of clean hydrogen for fuel cell use. She is the North and South American Editor of Applied Catalysis B: Environmental; has authored or co-authored more than one hundred twenty technical papers; and holds seven patents.

Honors and Awards:

• NASA - New Technology Awards # NPO-14826, 14827, 15758 (1983; 1984)
• NASA - Space Act Award and Certificate of Recognition (1987)
• NSF - Career Advancement Award (1987)
• Associate Director of the ERRC (Emissions Reduction Research Center); NSF /Ind./Univ.(MIT, NJIT, OSU, PSU) Cooperative Center (1992-97)
• National Chemical Laboratory, Pune, India; Golden Jubilee Lecture (1999)
• Tufts University - Raytheon Professorship in Pollution Prevention (1994-99)
• UNIDO – Lectureship, Beijing Research Institute of Coal Chemistry, Beijing, PRC (1994)
• Editorial Board, Applied Catalysis B: Environmental (1998-2002)
• Director, AIChE/CRE Division (2001- 2004)
• Editor, North and South America, Applied Catalysis B: Environmental (2002-)
• Advisory Board, Energy and Fuels (2003-)
• Editor, Special Issue of APCATB on Catalytic Fuel Processing for Fuel Cells (2005)
• Mellon Senior Faculty Research Semester Fellowship (Fall 2006)
• 2007 Distinguished Scholar Award, Tufts University
• Henry J. Albert award, International Precious Metals Institute, 2008

Courses Taught in Past Five Years
ChE 103/160 Reaction Kinetics of Chemical and Biological Systems
ChE 22 Heat and Mass Transfer
ChE 173 Clean Energy Technologies and Policy
ChE 102 Chemical and Biological Reactor Design
EN 65 Fuel Cell Technology

Research Interests:

• Fuel Processing Catalysis and Fuel Cells
• Nanoscale Redox Catalysts
• Advanced Desulfurization Sorbents
• Lean-NO_x Reduction Catalysts

Selected Recent Publications

W. Deng, A.I. Frenkel, R. Si, M. Flytzani-Stephanopoulos, "Reaction-relevant gold structures in the low temperature water-gas shift reaction on Au-CeO₂ ," J. Phys. Chem. C (2008), in press.

Z. Zhou, M. Flytzani-Stephanopoulos, S. Kooi, H. Saltsburg, "The Role of the Interface in CO Oxidation on Au/CeO₂ Multi-layer Nanotowers," Advanced Functional Materials (2008), in press.

X. She and M. Flytzani-Stephanopoulos, "Activity and stability of Ag-alumina for the selective catalytic reduction of NO_x with methane in high-content SO₂ gas streams," Catalysis Today 127: 207-218 (2007).

M. Manzoli, F. Boccuzzi, A. Chiorino, F. Vindigni, W. Deng, and M. Flytzani-Stephanopoulos, "Spectroscopic features and reactivity of CO adsorbed on different Au/CeO₂ catalysts," Journal of Catalysis 245: 308-15 (2007).

M. Flytzani-Stephanopoulos, M. Sakbodin, Z. Wang. "Regenerative adsorption and removal of H₂S from hot fuel gas streams by rare earth oxides." Science 312: 1508-10 (2006).

W. Deng and M. Flytzani-Stephanopoulos, "On the deactivation of nanostructured gold-ceria and platinum-ceria catalysts for the water-gas shift reaction in practical fuel cell applications", Angewandte Chemie International Edition 45: 2285-2289 (2006).

X. She and M. Flytzani-Stephanopoulos, "The role of Ag-O-Al species in silver-alumina catalysts for the selective catalytic reduction of NO_X with methane" J. Catalysis 237, 79-93 (2006).

Q. Fu, W. Deng, H. Saltsburg and M. Flytzani-Stephanopoulos, "Activity and stability of low-content gold-ceria catalysts for the water-gas shift reaction", invited paper, Appl. Catal. B 56 (1-2), 57-68 (2005).

Z. Wang and M. Flytzani-Stephanopoulos, "Cerium Oxide Based Sorbents for Regenerative Hot Reformate Gas Desulfurization", Energy and Fuels 19, 2089-2097 (2005).

W. Deng, J. DeJesus, H. Saltsburg and M. Flytzani-Stephanopoulos; "Low-content gold-ceria catalysts for the water-gas shift and preferential CO oxidation reactions", Appl. Catal. A 291 (1-2), 126-135 (2005).

X. Qi and M. Flytzani-Stephanopoulos, "Activity and stability of Cu-CeO₂ catalysts in high-temperature water-gas shift for fuel cell applications", invited paper, Ind. & Eng. Chem. Res., 43, 3055-3062 (2004).

Q. Fu, H. Saltsburg, and M. Flytzani-Stephanopoulos, "Active non-metallic Au and Pt Species on Ceria-based Water-gas shift Catalysts", Science 301, 935-938 (2003).

Q. Fu, A. Weber and M. Flytzani-Stephanopoulos, "Nanostructured Au-CeO₂ Catalysts for Low-Temperature Water-Gas Shift Reaction," Catal. Letters 77 (1/3) 87-95 (2001).

Review more publications

Patents

"High-Temperature Regenerative H₂S Sorbents," U.S. Patent No. 4,729,889; issued March 8, 1988.
"Methods and Devices for Gas Cleaning," International Patent Application. Published under PCT. No. WO89/03720, May, 1989.
"Preparation of Extrusions of Bulk Mixed Oxide Compounds with High Macroporosity and Mechanical Strength," U.S. Patent No. 4,977,123; issued December 11, 1990.
"Elemental Sulfur Recovery from SO₂-Containing Streams," U.S. Patent No. 5,242,673; issued September 7, 1993.
"Cell-Culturing Apparatus and Method Employing a Macroporous Support," U.S. Patent No. 5,262,320; issued November 16, 1993.
"Elemental Sulfur Recovery Process," U.S. Patent No. 5,384,301; issued January 24, 1995.
"Composite Catalyst for Carbon Monoxide and Hydrocarbon Oxidation," U.S. Patent No. 5,500,198; issued March 19, 1996.
"Duct Injection of Regenerable Zinc-based Sorbents for Hot Gas Cleanup," U.S. Patent No. 5,538,703; issued July 23, 1996.