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Analysis of a perovskite-ceria functional layer-based solid oxide fuel cell
KTH, School of Industrial Engineering and Management (ITM), Energy Technology.
KTH, School of Industrial Engineering and Management (ITM), Energy Technology.
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2017 (English)In: International journal of hydrogen energy, ISSN 0360-3199, E-ISSN 1879-3487, Vol. 42, no 27, p. 17536-17543Article in journal (Refereed) Published
Abstract [en]

A fuel cell based on a functional layer of perovskite Ba0.5Sr0.5Co0.8Fe0.2O3-delta (BSCF) composited samarium doped ceria (SDC) has been developed. The device achieves a peak power density of 640.4 mW cm(-2) with an open circuit voltage (OCV) of 1.04 Vat 560 degrees C using hydrogen and air as the fuel and oxidant, respectively. A numerical model is applied to fit the experimental cell voltage. The kinetics of anodic and cathodic reactions are modeled based on the measurements obtained by electrochemical impedance spectroscopy (EIS). Modeling results are in well agreement with the experimental data. Mechanical stability of the cell is also examined by using analysis with field emission scanning electron microscope (FESEM) associated with energy dispersive spectroscopy (EDS) after testing the cell performance.

Place, publisher, year, edition, pages
Elsevier, 2017. Vol. 42, no 27, p. 17536-17543
Keywords [en]
Perovskite Ba0.5Sr0.5Co0.8Fe0.2O3-delta (BSCF), Samarium doped ceria (SDC), Solid oxide fuel cell, Functional layer, Numerical model
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:kth:diva-212943DOI: 10.1016/j.ijhydene.2017.05.024ISI: 000406725500062Scopus ID: 2-s2.0-85020138406OAI: oai:DiVA.org:kth-212943DiVA, id: diva2:1136126
Conference
2nd International Symposium on Catalytic Science and Technology in Sustainable Energy and Environment (EECAT), October 11-14, 2016, Tianjin, China
Funder
Swedish Research Council, 621-2011-4983
Note

QC 20170825

Available from: 2017-08-25 Created: 2017-08-25 Last updated: 2017-08-25Bibliographically approved

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