Lee

							            UNIVERSITEIT LEIDEN
            Faculteit der Wiskunde en Natuurwetenschappen

            Van MARUM COLLOQUIUM
Date:       Friday May 27, 2011
Time:       1.15PM (coffee available at 1PM)
Place:      room 07 (Gorlaeus building)

Speaker:    Professor Jaeyoung Lee
            Ertl center for Electrochemistry and Catalysis and School of Environmental
Science            and Engineering, Gwangju, South Korea
            Department of Physical Chemistry, Fritz‐Haber‐Institut der
                          Max‐Planck‐Gesellschaft, Berlin,



         Understanding underlying processes in
                 formic acid fuel cells
A basic understanding of electrode structure and the characteristics of its
components can be powerfully utilized in fuel cell applications such as direct
formic acid fuel cell (DFAFC) system integration and HCOOH concentration
controlled systems. There have been, thus, tremendous efforts made to
elucidate theoretical aspects of electrochemical processes involving new
anode catalysts and put them into practical effect on formic acid fuel cells.
Herein, we highlight recent studies for better understanding of the underlying
processes in DFAFC: (i) a systematic approach for developing cost‐effective
and stable anode catalysts and electrode structures that incorporate mass
transport characteristics of HCOOH; (ii) a clear evaluation of the HCOOH
crossover rate based on its physicochemical properties; and (iii) a theoretical
assessment process of individual electrodes and related components during
DFAFC operation using EIS and a reversible hydrogen reference electrode.
Indeed, from an industrial point of view, the most cost effective and
competitive variants of fuel cell applications will establish themselves in the
market. To this end, formic acid fuel cells are definitely one of the most
promising candidates with ethanol.
             UNIVERSITEIT LEIDEN
             Faculteit der Wiskunde en Natuurwetenschappen

             Van MARUM COLLOQUIUM




References
[1] H. Jeon, S. Uhm, B. Jeong, J. Lee, On the origin of reactive Pd catalysts for an
electrooxidation of formic acid, Physical Chemistry Chemical Physics 13 (2011) 6192.
[2] S. Uhm, Hye Jin Lee, J. Lee, Understanding underlying processes in formic acid fuel
cells, Physcal Chemistry Chemical Physics 11 (2009) 9326. Perspective
[3] J. Lee, Y. Kwon, R. L Machunda, H. J. Lee, Electrocatalytic Recycling of CO2 and
Small Organic Molecules, Chemistry ‐ An Asian Journal 4 (2009) 1516. Focus Review
[4] S. Uhm, H. J. Lee, Y. Kwon, J. Lee, A Stable and Cost‐effective Anode Catalyst
Structure in a Formic Acid Fuel Cells, Angewandte Chemie International Edition 47
(2008) 10163.
[5] C. M. Miesse, J. Lee et al., Direct formic acid fuel cell portable power system for the
operation of a laptop computer, Journal of Power Sources 162 (2006) 532.
[6] J. Lee, J. Christoph, T. Noh, M. Eiswirth, G. Ertl, Edge effects in an electrochemical
reaction: HCOOH oxidation on a Pt ribbon, The Journal of Chemical Physics 126 (2007)
144702.
[7] J. Lee, P. Strasser, M. Eiswirth, G. Ertl, On the origin of oscillations in the
electrocatalytic oxidation of HCOOH on Pt electrode modified by Bi deposition,
Electrochimica Acta 47 (2001) 501.
[8] J. Lee, J. Christoph, P. Strasser, M. Eiswirth, G. Ertl, Spatio‐temporal interfacial
potential patterns during the electrocatalyzed oxidation of formic acid on Bi‐modified
Pt, The Journal of Chemical Physics 115 (2001) 1485.




Host: Prof.dr. Marc Koper, m.koper@chem.leidenuniv.nl, http://casc.lic.leidenuniv.nl
      Phone: 4250