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Electrochemical behaviour of propane-fed solid oxide fuel cells based on low Ni content anode catalysts (Articolo in rivista)
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- Electrochemical behaviour of propane-fed solid oxide fuel cells based on low Ni content anode catalysts (Articolo in rivista) (literal)
- Anno
- 2009-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1016/j.electacta.2009.03.077 (literal)
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Lo Faro, M. ; La Rosa, D. ; Nicotera, I. ; Antonucci, V. ; Aricò, A. S. (2009)
Electrochemical behaviour of propane-fed solid oxide fuel cells based on low Ni content anode catalysts
in Electrochimica acta; Pergamon-Elsevier Press Science LDT, Oxford (Regno Unito)
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- Lo Faro, M. ; La Rosa, D. ; Nicotera, I. ; Antonucci, V. ; Aricò, A. S. (literal)
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- CNR-ITAE Institute, Via Salita S. Lucia sopra Contesse 5, IT-98126 Messina, Italy ; Università degli Studi della Calabria, IT-87036 Arcavacata di Rende (CS), Italy (literal)
- Titolo
- Electrochemical behaviour of propane-fed solid oxide fuel cells based on low Ni content anode catalysts (literal)
- Abstract
- Two different low Ni content (10 wt.%) anode catalysts were investigated for intermediate temperature (800 oC) operation in solid oxide fuel cells fed with dry propane. Both catalysts were prepared by the impregnation of a Ni-precursor on different oxide supports, i.e. gadolinia doped ceria (CGO) and
La0.6Sr0.4Fe0.8Co0.2O3 perovskite, and thermal treated at 1100 oC for 2 h. The Ni-modified perovskite catalyst was mixed with a CGO powder and deposited on a CGO electrolyte to form a composite catalytic layer with a proper triple-phase boundary. Anode reduction was carried out in-situ in H2 at 800 oC for
2 h during cell conditioning. Electrochemical performance was recorded at different times during 100 h operation in dry propane. The Ni-modified perovskite showed significantly better performance than the Ni/CGO anode. A power density of about 300mWcm-2 was obtained for the electrolyte supported SOFC
in dry propane at 800 oC. Structural investigation of the composite anode layer after SOFC operation indicated a modification of the perovskite structure and the occurrence of a La2NiO4 phase. The occurrence of metallic Ni in the Ni/CGO system caused catalyst deactivation due to the formation of carbon deposits. (literal)
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