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http://hdl.handle.net/10261/184073
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dc.contributor.author | Cascos, Vanessa | - |
dc.contributor.author | Troncoso, Loreto | - |
dc.contributor.author | Alonso, J. A. | - |
dc.date.accessioned | 2019-06-14T07:54:06Z | - |
dc.date.available | 2019-06-14T07:54:06Z | - |
dc.date.issued | 2015-09-14 | - |
dc.identifier | doi: 10.1016/j.ijhydene.2015.03.134 | - |
dc.identifier | issn: 0360-3199 | - |
dc.identifier.citation | International Journal of Hydrogen Energy 40(34): 11333-11341 (2015) | - |
dc.identifier.uri | http://hdl.handle.net/10261/184073 | - |
dc.description.abstract | We have investigated the effect of M = Ti and V doping on the crystal structure and on the thermal, electrical, and electrochemical properties of SrCoMO (x = 0.03 and 0.05) perovskite oxides performing as cathodes in solid oxide fuel cells (SOFC). The characterization of these materials included x-ray (XRD) and neutron powder diffraction (NPD) measurements. The introduction of Ti and V replacing Co in SrCoO leads to the stabilization of a tetragonal perovskite superstructure at room temperature with a = a, c = 2a (a≈ 3.9 Å) defined in the P4/mmm space group, containing two inequivalent Co positions. Flattened and elongated (Co,M)O octahedra alternate along the c axis sharing corners in a three-dimensional array (3C-like structure). The thermal expansion coefficients of SrCoTiO and SrCoVO have been measured between 25 and 850 °C. The electrical conductivity at the SOFCs working temperatures (650-850 °C) seems to be sufficient to yield a good performance in IT-SOFC; the polarization resistance in symmetrical cells is as low as 0.016 Ω cm at 850 °C for M = Ti. In single test cells these materials generated a maximum power of 824 mW/cm at 850 °C with pure H as a fuel. This good performance make these systems promising candidates as cathode materials in SOFC. | - |
dc.description.sponsorship | We thank the financial support of the Spanish Ministry of Science and Innovation to the project MAT2013-41099-R. | - |
dc.publisher | Pergamon Press | - |
dc.relation | info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2013-41099-R | - |
dc.rights | closedAccess | - |
dc.subject | SrCoO3−δ | - |
dc.subject | Neutron diffraction | - |
dc.subject | Energy conversion | - |
dc.subject | Hydrogen | - |
dc.subject | Cathode | - |
dc.subject | Solid oxide fuel cell | - |
dc.title | New families of Mn+-doped SrCo1-xMxO3-δ perovskites performing as cathodes in solid-oxide fuel cells | - |
dc.type | artículo | - |
dc.identifier.doi | 10.1016/j.ijhydene.2015.03.134 | - |
dc.relation.publisherversion | https://doi.org/10.1016/j.ijhydene.2015.03.134 | - |
dc.date.updated | 2019-06-14T07:54:06Z | - |
dc.language.rfc3066 | eng | - |
dc.contributor.funder | Ministerio de Economía y Competitividad (España) | - |
dc.relation.csic | Sí | - |
dc.identifier.funder | http://dx.doi.org/10.13039/501100003329 | es_ES |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.grantfulltext | none | - |
item.openairetype | artículo | - |
item.cerifentitytype | Publications | - |
item.fulltext | No Fulltext | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
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