Esposito, Vincenzo

Hjelm, Johan

Jensen, Jens Oluf

Ramousse, Severine

Shao, Jing

Simonsen, Søren

Zhang, Wei

Zhang, Wenjing (Angela)

Online Research Database In Technology

                       General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.  • Users may download and print one copy of any publication from the public portal for the purpose of private study or research. • You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal   If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim.     Downloaded from orbit.dtu.dk on: Dec 17, 2017Three-dimensional Nanofiber Cathode for Low Temperature and High TemperatureFuel CellsZhang, Wenjing (Angela); Zhang, Wei; Simonsen, Søren ; Esposito, Vincenzo; Hjelm, Johan; Ramousse,Severine; Jensen, Jens Oluf; Shao, JingPublication date:2013Link back to DTU OrbitCitation (APA):Zhang, W. . A., Zhang, W., Simonsen, S., Esposito, V., Hjelm, J., Ramousse, S., ... Shao, J. (2013). Three-dimensional Nanofiber Cathode for Low Temperature and High Temperature Fuel Cells. Abstract from Annualmeeting of the Danish Electrochemical Society, Ringsted, Denmark.    Three-dimensional Nanofiber Cathode for Low Temperature and High Temperature Fuel Cells  Wenjing Angela Zhang1, Wei Zhang1, Søren Simonsen1, Vincenzo Esposito1, Johan Hjelm1, Severine Ramousse1, Jens Oluf Jensen1, Jing Shao1  1Department of Energy Conversion, Technical University of Denmark, Denmark, wenz@dtu.dk   Electrochemical devices for clean energy conversion such as proton exchange membrane fuel cells (PEMFCs)1-3 and solid oxide fuel cells (SOFCs)4-5 are currently and for the foreseeable future very much in the spotlight. Although these developing energy technologies have seen a rapid development, new break-through developments are needed to improve their durability, efficiency, power density and cost to make them commercial viable.  Electrospinning provides possibilities of generating composite networks from a rich variety of materials with the ability to control composition, morphology and secondary structure. Moreover, it is easy to scale up for inductrial production. This simple and versatile method has been used in this research to address the sizable challenges facing those involved in materials research into energy conversion devices. The objective of this poster is to show the potential of electrospinning in designing nanostructures of both organic and inorganic materials in electrochemical devices. Herein, we present results on 1) Nafion/ Pt-C composite cathodes for PEMFCs; 2) LSCF nanofiber cathode for SOFCs. Exceptionally high power densities and platinum mass activity are achieved when using the nanofiber mat as cathode in PEMFCs. The nanofiber cathode also exhibits outstanding stability in accelerated durability tests.6 In case of SOFCs, lanthanum strontium cobaltite ion perovskite nanofibers with controllable nanostructure were synthesized by combining sol-gel synthesis, electrospinning and sintering.  References [1] Christie, A. M.; Lilley, S. J.; Staunton, E.; Andreev, Y. G.; Bruce, P. G. Nature (2005) 433: 50-53. [2] Gasteiger, H. A.; Kocha, S. S.; Sompalli, B.; Wagner, F. T. Appl Catal B-Environ (2005) 56: 9-35. [3] Litster, S.; McLean, G. J Power Sources (2004) 130: 61-76. [4] Eric D. Wachsman, Kang Taek Lee. Science (2011) 334: 935-939. [5] Brian C. H. Steele, Angelika Heinzel,  Nature (2001) 414: 345-352. [6] W. Zhang, P. N. Pintauro. ChemSusChem, 2011, 4, 1753–1757.  

Three-dimensional Nanofiber Cathode for Low Temperature and High Temperature Fuel Cells

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Three-dimensional Nanofiber Cathode for Low Temperature and High Temperature Fuel Cells

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