Graphene Project, Assoc. Prof. Selmiye ALKAN GÜRSEL
Transkript
Graphene Project, Assoc. Prof. Selmiye ALKAN GÜRSEL
GRAPHENE FLAGSHIP PROJECT AT SABANCI UNIVERSITY Assoc.Prof.Dr. Selmiye Alkan Gürsel Sabancı University Faculty of Engineering and Natural Sciences SABANCI UNIVERSITY July 1994 Resolution by Sabancı Holding Executive Board August 1995 Search Conference with 52 participants from 22 countries & Formulation of the ‘’The Philosopy’’ February 1996 Various Task Forces Start Working on Curricular and Administrative Structure July 1997 Groundbreaking by the President of Turkey October 1999 First Academic Year SABANCI UNIVERSITY-PHILOSOPHY “Creating and Developing Together” Student Focused Participative Responsible and Responsive Practice Relevance Developing science and technology Disseminating knowledge Interdisciplinary Self-Managing / Self-Sustaining Teamwork Local / Regional / Global Learning to Learn • School of Engineering and Natural Sciences (FENS) • School of Arts and Social Sciences (FASS) • School of Management (FMAN) • A total of 12 undergraduate, 18 graduate, and 3 minor honors programs • 3.000 undergraduate and 700 graduate students • The student-to- faculty ratio is a very desirable 10:1 ratio SCHOOL OF ENGINEERING AND NATURAL SCIENCES An academic staff of 100 members, about 750 undergraduate and 325 graduate students. Competitive and dynamic faculty Student participation to research from undergraduate level National and international cooperation Close relations with industry Interdisciplinary Research Activites Effective collaboration within faculty Multidisciplinary research laboratories established with an cumulative investment exceeding 50 Million EUR Highest sponsored research funds per faculty member in Turkey THE ANNUAL PROGRESS OF THE EXTERNALLY FUNDED PROJECTS (2005-2013) (TL) 40.000.000 34.087.166 35.000.000 30.000.000 24.939.950 25.000.000 20.000.000 15.000.000 8.396.000 10.000.000 5.000.000 11.982.000 10.964.000 10.706.000 9.980.000 9.000.000 0 2005 16.214.000 2006 2007 2008 2009 2010 2011 2012 2013 * The projects in the contract phase are included. BUDGET DISTRIBUTIONS OF ONGOING PROJECTS (DECEMBER 2013) SPO 3% BUSINESS ENTERPRISES 20% OTHER 8% TUBITAK 52% EU 17% * The projects in the contract phase are included. FP7 PERFORMANCE OF THE TURKISH UNIVERSITIES (2007 - JUNE 2012) According to TUBITAK official results, SU is highly successful at the EU FP7 and is the leading university among Turkish universities with 43 projects. Source: "EU 7th Framework Program Interim Evaluation Report (1 January 2007-30 June 2012) Graphene appointed an EU Future Emerging Technology (FET) Flagship The European Commission has chosen Graphene as one of Europe’s first 10-year, 1,000 million euro FET Flagships ‘’Graphene-Driven Revolutions in ICT and Beyond’’ 75 partners, (126 groups) from 17 European countries, selected by coordinator and work-package leaders based on their contributions to flagship goals Sabancı University is the only partner of Graphene Flagship Project from Turkey steady state phase Horizon 2020 Programme ramp-up phase 7th Framework Programme 10 year project period, 1 B€ Carl-Christian Buhr of the European Commission congratulates Jari Kinaret, Director of The Graphene Flagship, at the flagship launch at Chalmers University of Technology (October 11, 2013) 16 use of graphene in polymer electrolyte membrane fuel cells POLYMER ELECTROLYTE MEMBRANE (PEM) FUEL CELL Membrane Electrode Assembly (MEA) L. Gubler, S. Alkan Gürsel, G. G. Scherer, Fuel Cells 5, 317 (2005) CATALYST AND CATALYST SUPPORT Membrane Gas Difussion Electrode GDL Catalyst Catalyst Layer Support Platinum (Pt) nanoparticles used as the catalyst Carbon blacks (e.g., Vulcan XC-72, Acetylene Black, Ketjen Black, etc.) are used support materials M. Uchida, Y. Fukuoka, Y. Sugawara, N. Eda, A. Ohta, J. Electrochem. Soc.143(7): 2245 (1996) Type of catalyst support has a dramatic effect on fuel cell performance CATALYST SUPPORT MATERIALS- LIMITATIONS electrochemical instability presence of sulfur impurities • loss of Pt nanoparticles or aggregation of particles • Pt poisoning formation of microporous structure • preventing easy access of the reactants presence of deep cracks • difficulty in the formation of three-phase boundary long-term degradation of the catalyst performance CATALYST SUPPORT MATERIALS-REQUIREMENTS Large surface area High conductivity Challanges Development of catalysts minimal loading maximum catalytic activity Catalyst Support Affinity to Corrosion resistant CO tolerance nanoparticles high durability Free from impurities the unique structure and properties of graphene can fullfill these requirements OBJECTIVE Increase catalyst dispersion, utilization and stability Reduce the amount of catalyst loading in the electrodes utilization stability dispersion reduction of Pt catalyst loading GRAPHENE SUPPORTED CATALYST (Pt/GRAPHENE) Pt Pt Pt Pt Pt Pt Pt Pt Pt Pt Pt Pt Pt nanoparticles Pt nanoparticles carbon paper Electrode fabrication Pt/G fuel cell electrode Fuel cell testing membrane MEA fabrication MEA RESEARCH ACTIVITIES Gas Difusion Electrodes and Proton Exchange Membrane Membranes for PEM Electrode Assemblies Fuel Cells PEM Fuel Cells Lithium Ion Batteries Materials for Artifical Muscles Conducting Polymers ORFSO2F Radiation-Induced Grafting H3C F 1.0 Durability: 5200 hours 0.8 ETFE25 ( 0% DVB) 165 h ETFE25 ( 5% DVB) 210 h ETFE25 ( 8% DVB) 136 h ETFE25(10% DVB) 169 h ETFE25(15% DVB) 149 h FEP 25 (10% DVB) 174 h Nafion® 112 0.4 0.6 0.3 0.4 0.2 0.2 0.1 0.0 0.0 2000 0 500 1000 1500 -2 Current Density (mA cm ) F F H C C C C F F H H CF2 H n 0.5 Resistance (Ohm cm2) Cell Voltage (V) PEM FUEL CELLS: PROTON EXCHANGE MEMBRANES FOR LOW T OPERATION H. Ben youcef, S. Alkan Gürsel, A. Buisson, L. Gubler, A. Wokaun, G. G. Scherer, Fuel Cells, 10, 401 (2010) H. Ben youcef, L. Gubler, S. Alkan Gürsel, D. Henkensmeier, A. Wokaun, G. G. Scherer, Electrochem. Comm. 11, 941 (2009 L. Gubler, H. Ben youcef, S. Alkan Gürsel, A. Wokaun, G. G. Scherer, J. Electrochem. Soc. 155(9), B921 (2008) H. Ben youcef, S. Alkan Gürsel, A. Wokaun, G. G. Scherer, J. Memb. Sci. 311, 208 (2008) M. G. Roelofs, Z. Yang, S. Alkan Gürsel, G. G. Scherer ‘Process to Prepare Stable Trifluorostyrene Containing Compounds Grafted to Base Polymers using an Alcohol/Water Mixture’ WO2006102672 (28-09-2006) o 120 ® 1.0 0.9 o Nafion NR 211 80 C o ETFE-g-P4VP 120 C o ETFE-g-P4VP 130 C 100 80 0 80 C 0 100 C 0 120 C ETFE-g-P4VP 0.8 0.7 60 40 20 0.8 2 ® Nafion NR 211 120 C o ETFE-g-P4VP 80 C 0.6 0.6 0.5 0.4 0.4 0.3 0.2 0.2 0 0 20 40 60 RH (%) 80 100 0.0 0.1 0 • L. Işıkel Şanlı, S.Taş, Y. Yürüm, S. Alkan Gürsel, Fuel Cells (accepted) • L. Işıkel Şanlı, S. Alkan Gürsel, Patent Application PCT/EP2013/066945 (filed 13.08.2013) 200 400 600 800 1000 1200 1400 1600 2 Current Density (mA/cm ) Power Density (W/cm ) 140 Voltage (V) Proton Conductivity (mS/cm) PEM FUEL CELLS: PROTON EXCHANGE MEMBRANES FOR HIGH T OPERATION PEM FUEL CELLS: MICROSTRUCTURED MEMBRANES irradiation 200 µm proton conductivity good mechanical properties • P. Farquet, C. Padeste, M. Börner, H. Ben youcef, S. Alkan. Gürsel, G. G. Scherer, H. H. Solak, V. Saile A. Wokaun, J. Memb. Sci. 325(2), 658 (2008) • H. P. Brack, C. Padeste, M. Slaski, S. Alkan, H. H. Solak J. Am. Chem. Soc. 126, 1004 (2004) PEM FUEL CELLS: GAS DIFFUSION ELECTRODES & MEAS Direct deposition of Pt Wet-Laying Process C fiber +10%PTFE Chemical deposition of Pt G. G. Scherer, L. Gubler, S. Alkan Gürsel ‘A Method for Preparing a Membrane to be Assembled in a Membrane Electrode Assembly and Membrane Electrode Assembly’ WO2006081970 (10-08-2006), EP1689014 (08-09-2006), US2009053611 (26-02-2009) L. Işıkel , MSc thesis, Auburn University, 2007 D. Çilingir Doğan, S. Alkan Gürsel, Fuel Cells, 11, 361 (2011) SUCCESS TIPS Distinguished researcher profile Networking Collaborations Following grant opportunies GRAPHENE FLAGSHIP PROJECT TEAM FROM SABANCI UNIVERSITY Assoc. Prof. Selmiye Alkan Gürsel (scientific representative) Dr. Veera Sadhu (senior researcher) Dr. Lale Işıkel Şanlı (postdoctoral researcher) Begüm Yarar (PhD student) Vildan Bayram (MSc student) Esaam Jamil (MSc student) Ahmet Can Kırlıoğlu (undergraduate student) Zain Fuad (undergraduate student) Ece Arıcı (undergraduate student) COLLABORATIONS Dr. Şölen Kınayyiğit, Sabancı University Dr. Ayşe Bayrakçeken, Atatürk University Dr. Cesar Merino Sanchez , Grupo Antolin-Ingeniera ---------------------------------------------------------------------------- Dr. Burcu Saner Okan, Sabancı University (until 24.02.2014)