Novel materials and nanomaterials for energy conversion

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June 2 - 5, 2010
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Session organizer

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Prof. Oumarou Savadogo is professor of Chemical Engineering at Polytechnique Montréal in Canada, researching new materials for energy and electrochemistry.

Oumarou Savadogo is a Full Professor in Material Science at École Polytechnique de Montréal. He earned a Science Doctorate in Physical Sciences (1985) at Institute of Materials Sciences at Caen National University in France and a post-doctoral fellow at Laboratory of Interfacial Electrochemistry of National Science Research Centre at Bellevue in France (1986-1987) . He joined the Materials Engineering Programme at Ecole Polytechnique de Montréal, Canada as a Senior Scientist (1987-1991) and Professor (since 1992). He is the Founder and the Editor of the Journal:”Journal of New Materials for Electrochemical Systems’’ and of the International Symposium of New Nano-Materials for Electrochemical Systems (www.newmaterials.polymtl.ca). He is also the Founder and Director of the Laboratory of New Materials for Electrochemistry and Energy Materials. His research interests lie in the area of nano-materials identification and development for PEM Fuel Cells, micro bio-fuel cells, solar cells and biomedical applications. He is the author and co-author of more than 130 original papers and 6 patents.

Confirmed speakers

Prof. Rice-York
Prof. Mandal
Prof. Brisard
    • Prof. Cynthia A. Rice-York, Tennessee Technological University, "PEM Fuel Cell for Automotive Subzero Cold-Starts-Supercooled Water Mobility and Ice Formation".

Prof. York is originally from upstate New York — Schroon Lake — and received a B.A. from SUNY-Potsdam in 1995 and Ph.D. in Analytical Chemistry from the University of Illinois at Urbana-Champaign in 2001. After spending 6 years at United Technologies Research Centers in East Hartford, CT, in 2008 she joined the faculty at Tennessee Technological University in a joint appointment between the Center for Manufacturing Research and the Department of Chemical Engineering. She has spent almost two decades conducting research on various fuel cell-related issues. She holds numerous publications and several patents in the area of fuel cells.

    • Prof. Krishna C. Mandal, Dept. of Electrical Engineering, University of South Carolina: "Ultralight, flexible, all solid-state nanocrystalline TiO2-polymer solar cells and arrays".
    • Prof. Gessie Brisard, Department of Chemistry, University of Sherbrooke: "Electrochemical investigations of Small Molecules on Copper base Surfaces."

Program

Thursday, June 3, 1:00 PM - 4:05 PM (Note change from printed program)

Novel Materials and Nanomaterials for Energy Conversion
Kellas 217

Organizer/Presider: Oumarou Savadogo

1:00       Ultralight, Flexible, All Solid-State Nanocrystalline TiO2 – Polymer Solar Cells and Arrays. Krishna C. Mandal, University of South Carolina. (see here for abstract)

1:30 239 Electrochemical Investigations of Small Molecules on Modified Surfaces. Gessie M. Brisard, Josee-Anne Cote and Patrick Dube, Universite de Sherbrooke

2:00 240 PEM Fuel Cell for Automotive Subzero Cold-Starts: Supercooled Water Mobility and Ice Formation. Cynthia A. Rice-York1 and Antonio Pistono2, (1)Tennessee Tech University, (2)Tennessee Tech University

2:30 241 Active and Stable Platinum-Based Multimetallic Nanoparticle Catalysts in PEMFCs. Bin Fang, Jin Luo, Rameshwori Loukrakpam, Bridgid Wanjala, Jun Yin, Xiang Hu and Chuan-Jian Zhong, State University of New York at Binghamton

2:50 Intermission

3:05 242 Preparation of Au/Pt Core-Shell Catalysts for PEM Fuel Cells Applications. Lu Lu, Ionel Halaciuga and Dan Goia, Clarkson University

3:25 243 Conductivity, Viscosity, and Enthalpy of Dissolution of LiNTF2 and NaNTF2 Solutions in Ionic Liquid BMINTF2. Lei Yu, Angelo Andriola, Kulwinder Singh and James Lewis, Rowan University

3:45 244 Degradation of PEM Fuel Cell Catalyst Due to Automotive Potential Cycling. Daniel Betancourt and Cynthia A. Rice-York, Tennessee Technological University

Abstract

Ultralight, Flexible, All Solid-State Nanocrystalline TiO2 – Polymer Solar Cells and Arrays

Krishna C. Mandal, Department of Electrical Engineering University of South Carolina, Columbia, SC 29208, USA

Dye sensitized solar cells (DSSCs) are reported with over 11% efficiency and are very promising as low cost and lightweight photovoltaic sources. Most reports are for low area cells fabricated on glass, which withstands processing temperatures of ~450oC. We will describe the fabrication and performance of cells made on flexible ITO-coated polyethylene terephthalate (PET) substrates with ≥ 6” x 3” dimensions. The cells were made using a ~150oC slow sintering process for the nano-oxides, a plasticized PAN or PVDF-based polymer electrolyte, and a sputtered Pt on PET counter electrode. Initially, these cells showed up to two orders of magnitude lower efficiency than the smaller glass cells. The lower efficiency originates from 1) a reduced processing temperature, and 2) a higher sheet resistivity of ITO on plastic. To improve the efficiency in the large area cells, we enhanced the ITO current collection efficiency with metallization fingers. The fingers occluded <10% of the light collection area and resulted in a 10 fold increase in short-circuit current under normal solar illumination compared to cells without metallization. Further improvements were realized by passivating the metallization fingers at the metal/polymer electrolyte interface. This talk will describe the current status and recent progress in producing large area flexible DSSC, and will provide an outlook for future work.