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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 2:25 |
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Conference: Bucharest University Faculty of Physics 2015 Meeting
Section: Physics and Technology of Renewable and Alternative Energy Sources
Title:
Carbon paper infused with xerogels as gas diffusion layer in PEM fuel cells
Authors:
Alexandra M.I. TREFILOV(1), Laurentiu POPOVICI(1), Adriana BALAN(1), Cristina E. SERBAN(1), Sanda VOINEA(1,2)
Affiliation:
1)University of Bucharest, Physics Department, 3 Nano-SAE Research Centre, Bucharest-Magurele, Romania.
2)University of Bucharest, Faculty of Physics, Bucharest-Magurele, Romania
E-mail
sanda.voinea@3nanosae.org
Keywords:
carbon xerogels, graphene, gas diffusion layer, PEMFCs
Abstract:
Novel gas diffusion layer containing carbon paper infused with carbon xerogels, as an alternative to carbon paper and microporos substrate, have been tested in proton exchange membrane fuel cells (PEMFCs). Xerogel synthesis inside the carbon paper pores requires the catalytic polycondensation of resorcinol and formaldehyde in the presence of an acid catalyst in a centrifugal field at: 250G, 125G, 65G and 0G, followed by aging treatment and pyrolysis at high temperatures. Platinum-ink, serving as FC catalyst, is directly sprayed on the xerogel plate and incorporated in the FC assembly by hot-pressing against a Nafion membrane. The integrated PEMFCs present open circuit voltages as high as 0.9V and current densities between 100 and 700mA/cm2 for the given catalyst loading ─ 0.5 mg/cm2 at anode and 1 mg/cm2 at cathode.
Acknowledgement:
Alexandra M.I. Trefilov was supported by the strategic grant POSDRU/159/1.5/S/133652, ”Integrated system to improve the quality of doctoral and postdoctoral research in Romania and promotion of the role of science in society” cofinanced by the European Social Found within the Sectorial Operational Program Human Resources Development 2007 – 2013.The authors were supported by a grant of the Romanian National Authority for Scientific Research, CNCS-UEFISCDI – project number PN-II-ID-PCE-2011-3-0815 ctr. 64/2011, 15/2012, PCCA-66/2013 and 46/2014.
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