dc.creator | Toscani, Lucía María | |
dc.creator | Volpe Giangiordano, María Florencia | |
dc.creator | Nichio, Nora Nancy | |
dc.creator | Pompeo, Francisco | |
dc.creator | Larrondo, Susana Adelina | |
dc.date.accessioned | 2021-11-10T16:58:51Z | |
dc.date.accessioned | 2022-10-15T11:45:21Z | |
dc.date.available | 2021-11-10T16:58:51Z | |
dc.date.available | 2022-10-15T11:45:21Z | |
dc.date.created | 2021-11-10T16:58:51Z | |
dc.date.issued | 2020-09 | |
dc.identifier | Toscani, Lucía María; Volpe Giangiordano, María Florencia; Nichio, Nora Nancy; Pompeo, Francisco; Larrondo, Susana Adelina; In-situ Ni exsolution from NiTiO3 as potential anode for solid oxide fuel cells; Pergamon-Elsevier Science Ltd; International Journal of Hydrogen Energy; 45; 43; 9-2020; 1-11 | |
dc.identifier | 0360-3199 | |
dc.identifier | http://hdl.handle.net/11336/146590 | |
dc.identifier | CONICET Digital | |
dc.identifier | CONICET | |
dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/4382359 | |
dc.description.abstract | Sample NiTiO3 (NTO) is prepared by the molten salts synthesis route as a potential anode material for solid oxide fuel cell (SOFC) applications. An additional sample impregnated with 5 mol%Ni (N-NTO) is also presented. Structural characterization reveal a pure NiTiO3 phase upon calcination at 850 °C and 1000 °C. Redox characterization by temperature programmed reduction tests indicate the transition from NiTiO3 to Ni/TiO2 at ca. 700 °C. Ni nanoparticles (ca. 26 nm) are exsolved in-situ from the structure after a reducing treatment at 850 °C. Catalytic activity tests for partial oxidation of methane performed in a fixed bed reactor reveal excellent values of activity and selectivity due to the highly dispersed Ni nanoparticles in the support surface. Time-on-stream behavior during 100 h operation in reaction conditions for sample N-NTO yield a stable CH4 conversion. Electrolyte supported symmetrical cells are prepared with both materials achieving excellent polarization resistance of 0.023 Ω cm2 in 7%H2/N2 atmosphere at 750 °C with sample N-NTO. The maximum power density achieved is of 273 mW cm−2 at 800 °C with a commercial Pt ink used as a reference cathode, indicating further improvement of the system can be achieved and positioning the N-NTO material as a promising SOFC anode material. | |
dc.language | eng | |
dc.publisher | Pergamon-Elsevier Science Ltd | |
dc.relation | info:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S0360319920322564 | |
dc.relation | info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.ijhydene.2020.06.118 | |
dc.rights | https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ | |
dc.rights | info:eu-repo/semantics/restrictedAccess | |
dc.subject | ANODE | |
dc.subject | CATALYST | |
dc.subject | NITIO3 | |
dc.subject | PARTIAL OXIDATION OF METHANE | |
dc.subject | SOFC | |
dc.subject | TITANATE | |
dc.title | In-situ Ni exsolution from NiTiO3 as potential anode for solid oxide fuel cells | |
dc.type | info:eu-repo/semantics/article | |
dc.type | info:ar-repo/semantics/artículo | |
dc.type | info:eu-repo/semantics/publishedVersion | |