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http://hdl.handle.net/10773/29079
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DC Field | Value | Language |
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dc.contributor.author | Yaremchenko, Aleksey | pt_PT |
dc.contributor.author | Arias-Serrano, Blanca I. | pt_PT |
dc.contributor.author | Zakharchuk, Kiryl | pt_PT |
dc.contributor.author | Frade, Jorge R. | pt_PT |
dc.date.accessioned | 2020-08-19T14:47:48Z | - |
dc.date.available | 2020-08-19T14:47:48Z | - |
dc.date.issued | 2019 | - |
dc.identifier.issn | 1938-5862 | pt_PT |
dc.identifier.uri | http://hdl.handle.net/10773/29079 | - |
dc.description.abstract | Perovskite-like LaNiO3-δ was evaluated as potential oxygen electrode material for solid oxide electrolysis cells. Compared to the Ruddlesden-Popper Lan+1NinO3n+1 (n = 1,2,3) counterparts, LaNiO3-δ exhibits higher p-type metallic-like conductivity under oxidizing conditions (450 S×cm-1 at 800°C for highly porous ceramics) together with a moderate thermal expansion coefficient (13.7 ppm×K-1 in air at 25-800°C) compatible with common solid electrolytes. The measured electrode polarization resistance (Rη) in contact with YSZ, CGO and LSGM solid electrolytes was 1.4, 0.77 and 0.22 Ω×cm2 at 800°C, and 208, 123 and 7.1 Ω×cm2 at 600°C, respectively, under zero-current conditions in air. Surface modification of via PrOx infiltration resulted in lower values of Rη (0.024 Ω×cm2 at 800°C and 0.76 Ω×cm2 at 600°C) and low anodic overpotentials (20 mV at 800°C and 500 mA×cm-2) in contact with LSGM. | pt_PT |
dc.language.iso | eng | pt_PT |
dc.publisher | Electrochemical Society | pt_PT |
dc.relation | POCI-01-0145-FEDER-032295 | pt_PT |
dc.relation | UID/CTM/50011/2019 | pt_PT |
dc.rights | openAccess | pt_PT |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | pt_PT |
dc.title | Perovskite-like LaNiO3-δ as oxygen electrode material for solid oxide electrolysis cells | pt_PT |
dc.type | article | pt_PT |
dc.description.version | published | pt_PT |
dc.peerreviewed | yes | pt_PT |
degois.publication.firstPage | 2399 | pt_PT |
degois.publication.issue | 1 | pt_PT |
degois.publication.lastPage | 2408 | pt_PT |
degois.publication.title | ECS Transactions | pt_PT |
degois.publication.volume | 91 | pt_PT |
dc.identifier.doi | 10.1149/09101.2399ecst | pt_PT |
dc.identifier.essn | 1938-6737 | pt_PT |
Appears in Collections: | CICECO - Artigos DEMaC - Artigos |
Files in This Item:
File | Description | Size | Format | |
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ECSTrans_91_(2019)_2399.pdf | 576.01 kB | Adobe PDF | View/Open |
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