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Electrochemical investigation of mixed metal oxide nanocomposite electrode for low temperature solid oxide fuel cell
KTH, School of Industrial Engineering and Management (ITM), Energy Technology. COMSATS Institute of Information Technology, Pakistan.
KTH, School of Industrial Engineering and Management (ITM), Energy Technology. COMSATS Institute of Information Technology, Pakistan.
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2017 (English)In: International Journal of Modern Physics B, ISSN 0217-9792, Vol. 31, no 27, article id 1750193Article in journal (Refereed) Published
Abstract [en]

Zinc-based nanostructured nickel (Ni) free metal oxide electrode material Zn-0.60/CU0.20Mn0.20 oxide (CMZO) was synthesized by solid state reaction and investigated for low temperature solid oxide fuel cell (LTSOFC) applications. The crystal structure and surface morphology of the synthesized electrode material were examined by XRD and SEM techniques respectively. The particle size of ZnO phase estimated by Scherer's equation was 31.50 nm. The maximum electrical conductivity was found to be 12.567 S/cm and 5.846 S/cm in hydrogen and air atmosphere, respectively at 600 degrees C. The activation energy of the CMZO material was also calculated from the DC conductivity data using Arrhenius plots and it was found to be 0.060 and 0.075 eV in hydrogen and air atmosphere, respectively. The CMZO electrode-based fuel cell was tested using carbonated samarium doped ceria composite (NSDC) electrolyte. The three layers 13 mm in diameter and 1 mm thickness of the symmetric fuel cell were fabricated by dry pressing. The maximum power density of 728.86 mW/cm(2) was measured at 550 degrees C.

Place, publisher, year, edition, pages
WORLD SCIENTIFIC PUBL CO PTE LTD , 2017. Vol. 31, no 27, article id 1750193
Keywords [en]
Solid oxide fuel cell, anode, catalyst, power density
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:kth:diva-217427DOI: 10.1142/S0217979217501934ISI: 000413771400006Scopus ID: 2-s2.0-85020444320OAI: oai:DiVA.org:kth-217427DiVA, id: diva2:1158173
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QC 20171117

Available from: 2017-11-17 Created: 2017-11-17 Last updated: 2017-11-17Bibliographically approved

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