GDC-Based Infiltrated Electrodes for Solid Oxide Electrolyzer Cells (SOECs)

GDC-Based Infiltrated Electrodes for Solid Oxide Electrolyzer Cells (SOECs)

In this work, porous complex and metal-free cathodes based on a (La<sub>0.6</sub>Sr<sub>0.4</sub>) (Cr<sub>0.5</sub>Mn<sub>0.5</sub>) O<sub>3</sub> (LSCM) screen-printed backbone infiltrated with Ce<sub>0.9</sub>Gd<sub>0.1...

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Main Authors: Luca Spiridigliozzi, Elisabetta Di Bartolomeo, Gianfranco Dell’Agli, Francesca Zurlo
Format: Article
Language:English
Published: MDPI AG 2020-06-01
Series:Applied Sciences
Subjects:
SOEC
infiltration
doped-ceria
cathodes
Online Access:https://www.mdpi.com/2076-3417/10/11/3882
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spelling doaj-f25a1ef505674de48b73a90f94f177662020-11-25T02:39:16ZengMDPI AGApplied Sciences2076-34172020-06-01103882388210.3390/app10113882GDC-Based Infiltrated Electrodes for Solid Oxide Electrolyzer Cells (SOECs)Luca Spiridigliozzi0Elisabetta Di Bartolomeo1Gianfranco Dell’Agli2Francesca Zurlo3Department of Civil and Mechanical Engineering, University of Cassino and Southern Lazio, Via G. Di Biasio 43, 03043 Cassino (FR), ItalyDepartment of Chemical Sciences and Technology, University of Roma Tor Vergata, 00133 Roma, ItalyDepartment of Civil and Mechanical Engineering, University of Cassino and Southern Lazio, Via G. Di Biasio 43, 03043 Cassino (FR), ItalyDepartment of Chemical Sciences and Technology, University of Roma Tor Vergata, 00133 Roma, ItalyIn this work, porous complex and metal-free cathodes based on a (La<sub>0.6</sub>Sr<sub>0.4</sub>) (Cr<sub>0.5</sub>Mn<sub>0.5</sub>) O<sub>3</sub> (LSCM) screen-printed backbone infiltrated with Ce<sub>0.9</sub>Gd<sub>0.1</sub>O<sub>2</sub> (GDC) were fabricated for solid oxide electrolyzer cells. GDC infiltration has been optimized by structural and microstructural investigation and tested by electrochemical measurements in CO/CO<sub>2</sub> mixtures. Infiltrated electrodes with a non-aqueous GDC solution showed the best electro-catalytic activity towards CO<sub>2</sub> reduction, exhibiting a much lower polarization resistance, i.e., R<sub>pol</sub> = 0.3 Ω·cm<sup>2</sup> at 900 °C. The electrochemical performance of LSCM/GDCE in terms of R<sub>pol</sub> is comparable to the best-performing Ni-YSZ cathode in the same operating conditions (R<sub>pol</sub> = 0.23 Ω·cm<sup>2</sup>).https://www.mdpi.com/2076-3417/10/11/3882SOECinfiltrationdoped-ceriacathodes
collection DOAJ
language English
format Article
sources DOAJ
author Luca Spiridigliozzi
Elisabetta Di Bartolomeo
Gianfranco Dell’Agli
Francesca Zurlo
spellingShingle Luca Spiridigliozzi
Elisabetta Di Bartolomeo
Gianfranco Dell’Agli
Francesca Zurlo
GDC-Based Infiltrated Electrodes for Solid Oxide Electrolyzer Cells (SOECs)
Applied Sciences
SOEC
infiltration
doped-ceria
cathodes
author_facet Luca Spiridigliozzi
Elisabetta Di Bartolomeo
Gianfranco Dell’Agli
Francesca Zurlo
author_sort Luca Spiridigliozzi
title GDC-Based Infiltrated Electrodes for Solid Oxide Electrolyzer Cells (SOECs)
title_short GDC-Based Infiltrated Electrodes for Solid Oxide Electrolyzer Cells (SOECs)
title_full GDC-Based Infiltrated Electrodes for Solid Oxide Electrolyzer Cells (SOECs)
title_fullStr GDC-Based Infiltrated Electrodes for Solid Oxide Electrolyzer Cells (SOECs)
title_full_unstemmed GDC-Based Infiltrated Electrodes for Solid Oxide Electrolyzer Cells (SOECs)
title_sort gdc-based infiltrated electrodes for solid oxide electrolyzer cells (soecs)
publisher MDPI AG
series Applied Sciences
issn 2076-3417
publishDate 2020-06-01
description In this work, porous complex and metal-free cathodes based on a (La<sub>0.6</sub>Sr<sub>0.4</sub>) (Cr<sub>0.5</sub>Mn<sub>0.5</sub>) O<sub>3</sub> (LSCM) screen-printed backbone infiltrated with Ce<sub>0.9</sub>Gd<sub>0.1</sub>O<sub>2</sub> (GDC) were fabricated for solid oxide electrolyzer cells. GDC infiltration has been optimized by structural and microstructural investigation and tested by electrochemical measurements in CO/CO<sub>2</sub> mixtures. Infiltrated electrodes with a non-aqueous GDC solution showed the best electro-catalytic activity towards CO<sub>2</sub> reduction, exhibiting a much lower polarization resistance, i.e., R<sub>pol</sub> = 0.3 Ω·cm<sup>2</sup> at 900 °C. The electrochemical performance of LSCM/GDCE in terms of R<sub>pol</sub> is comparable to the best-performing Ni-YSZ cathode in the same operating conditions (R<sub>pol</sub> = 0.23 Ω·cm<sup>2</sup>).
topic SOEC
infiltration
doped-ceria
cathodes
url https://www.mdpi.com/2076-3417/10/11/3882
work_keys_str_mv AT lucaspiridigliozzi gdcbasedinfiltratedelectrodesforsolidoxideelectrolyzercellssoecs
AT elisabettadibartolomeo gdcbasedinfiltratedelectrodesforsolidoxideelectrolyzercellssoecs
AT gianfrancodellagli gdcbasedinfiltratedelectrodesforsolidoxideelectrolyzercellssoecs
AT francescazurlo gdcbasedinfiltratedelectrodesforsolidoxideelectrolyzercellssoecs
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