Comparative analysis of ceramic-carbonate nanocomposite fuel cells using composite GDC/NLC electrolyte with different perovskite structured cathode materials

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorAsghar, Imran
dc.contributor.authorLepikko, Sakari
dc.contributor.authorPatakangas, Janne
dc.contributor.authorHalme, Janne
dc.contributor.authorLund, Peter D.
dc.contributor.departmentDepartment of Applied Physics
dc.date.accessioned2020-01-17T13:30:21Z
dc.date.available2020-01-17T13:30:21Z
dc.date.issued2018
dc.description.abstractA comparative analysis of perovskite structured cathode materials, La0.65Sr0.35MnO3 (LSM), La0.8Sr0.2CoO3 (LSC), La0.6Sr0.4FeO3 (LSF) and La0.6Sr0.4Co0.2Fe0.8O3 (LSCF), was performed for a ceramic-carbonate nanocomposite fuel cell using composite electrolyte consisting of Gd0.1Ce0.9O1.95 (GDC) and a eutectic mixture of Na2CO3 and Li2CO3. The compatibility of these nanocomposite electrode powder materials was investigated under air, CO2 and air/CO2 atmospheres at 550 °C. Microscopy measurements together with energy dispersive X-ray spectroscopy (EDS) elementary analysis revealed few spots with higher counts of manganese relative to lanthanum and strontium under pure CO2 atmosphere. Furthermore, electrochemical impedance (EIS) analysis showed that LSC had the lowest resistance to oxygen reduction reaction (ORR) (14.12 Ω∙cm2) followed by LSF (15.23 Ω∙cm2), LSCF (19.38 Ω∙cm2) and LSM (>300 Ω∙cm2). In addition, low frequency EIS measurements (down to 50 μHz) revealed two additional semi-circles at frequencies around 1 Hz. These semicircles can yield additional information about electrochemical reactions in the device. Finally, a fuel cell was fabricated using GDC/NLC nanocomposite electrolyte and its composite with NiO and LSCF as anode and cathode, respectively. The cell produced an excellent power density of 1.06 W/cm2 at 550 °C under fuel cell conditions. [Figure not available: see fulltext.]en
dc.description.versionPeer revieweden
dc.format.extent12
dc.format.extent162–173
dc.format.mimetypeapplication/pdf
dc.identifier.citationAsghar , I , Lepikko , S , Patakangas , J , Halme , J & Lund , P D 2018 , ' Comparative analysis of ceramic-carbonate nanocomposite fuel cells using composite GDC/NLC electrolyte with different perovskite structured cathode materials ' , FRONTIERS OF CHEMICAL SCIENCE AND ENGINEERING , vol. 12 , no. 1 , pp. 162–173 . https://doi.org/10.1007/s11705-017-1642-2en
dc.identifier.doi10.1007/s11705-017-1642-2
dc.identifier.issn2095-0179
dc.identifier.otherPURE UUID: 92f09f22-d236-4ec6-a7f5-0e53ac989676
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/92f09f22-d236-4ec6-a7f5-0e53ac989676
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85020205761&partnerID=8YFLogxK
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/40359803/SCI_Asghar_Comparative_analysis_of_ceramic.pdf
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/42551
dc.identifier.urnURN:NBN:fi:aalto-202001171666
dc.language.isoenen
dc.publisherHigher Education Press
dc.relation.ispartofseriesFRONTIERS OF CHEMICAL SCIENCE AND ENGINEERINGen
dc.relation.ispartofseriesVolume 12, issue 1en
dc.rightsopenAccessen
dc.subject.keywordelectrode
dc.subject.keywordfuel cell
dc.subject.keywordlow-temperature
dc.subject.keywordnanocomposite
dc.subject.keywordperovskite
dc.titleComparative analysis of ceramic-carbonate nanocomposite fuel cells using composite GDC/NLC electrolyte with different perovskite structured cathode materialsen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
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