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dc.contributor.authorAbdalla, Abdalla M.
dc.contributor.authorHossain, Shahzad
dc.contributor.authorZhou, Jun
dc.contributor.authorPetra, Pg M. I.
dc.contributor.authorErikson, Stene
dc.contributor.authorSavaniu, Cristian D.
dc.contributor.authorIrvine, John T. S.
dc.contributor.authorAzad, Abul K.
dc.date.accessioned2018-08-29T23:33:45Z
dc.date.available2018-08-29T23:33:45Z
dc.date.issued2017-12-01
dc.identifier.citationAbdalla , A M , Hossain , S , Zhou , J , Petra , P M I , Erikson , S , Savaniu , C D , Irvine , J T S & Azad , A K 2017 , ' NdBaMn 2 O 5+δ layered perovskite as an active cathode material for solid oxide fuel cells ' , Ceramics International , vol. 43 , no. 17 , pp. 15932-15938 . https://doi.org/10.1016/j.ceramint.2017.08.170en
dc.identifier.issn0272-8842
dc.identifier.otherPURE: 251008961
dc.identifier.otherPURE UUID: 3408eb19-7ecf-452b-9731-b474727658df
dc.identifier.otherRIS: urn:48F1EFB6D342411BE5748812D5854FCA
dc.identifier.otherScopus: 85028469359
dc.identifier.otherWOS: 000413175300187
dc.identifier.otherORCID: /0000-0002-8394-3359/work/68280657
dc.identifier.urihttp://hdl.handle.net/10023/15905
dc.description.abstractA layered perovskite, NdBaMn2O5+δ (NBMO), was synthesized by solid state reaction method in air. Rietveld analysis of X-Ray Diffraction (XRD) data showed the material crystallizing in orthorhombic symmetry (Pmmm space group). Scanning electron microscopy (SEM) was used to check the morphology and, the analysis of the micrographs exhibited a porous structure with in-situ growth of nanoparticles. Electrochemical Impedance Spectroscopy (EIS) measurements from 600 °C to 800 °Cshows the highest conductivity value of 1.17 × 10−1 S/cm obtained at 800 °C with low activation energy (Ea) of 0.3 eV in air. In 5% H2/Ar gas mixture, the conductivity and activation energy values were 1.97 × 10−2 S/cm and 0.4 eV, respectively at 800 °C. The DC conductivity measurements also showed that this material is highly conductive in air with a conductivity value of 0.75 S/cm at 850 °C. Dual chamber fuel cell measurements on Ni-YSZ/YSZ/NBMO cell using 5% H2/Ar as fuel (from 700 °C to 800 °C) showed a maximum power density of 0.202 W/cm2 at 800 °C. The relatively high conductivity of the material in air and low activation energy makes it a potential candidate as cathode for solid oxide fuel cells.
dc.language.isoeng
dc.relation.ispartofCeramics Internationalen
dc.rights© 2017 Elsevier Ltd. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1016/j.ceramint.2017.08.170en
dc.subjectLayered perovskiteen
dc.subjectSOFCen
dc.subjectCathode materialsen
dc.subjectExsolutionen
dc.subjectImpedance measurementsen
dc.subjectQD Chemistryen
dc.subjectNDASen
dc.subject.lccQDen
dc.titleNdBaMn2O5+δ layered perovskite as an active cathode material for solid oxide fuel cellsen
dc.typeJournal articleen
dc.description.versionPostprinten
dc.contributor.institutionUniversity of St Andrews.School of Chemistryen
dc.contributor.institutionUniversity of St Andrews.EaSTCHEMen
dc.identifier.doihttps://doi.org/10.1016/j.ceramint.2017.08.170
dc.description.statusPeer revieweden
dc.date.embargoedUntil2018-08-30


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