Reversible, all-perovskite SOFCs based on La, Sr gallates

Antonella Glisenti; Andrea Bedon; Giovanni Carollo; Cristian Savaniu; John T.S. Irvine

doi:10.1016/j.ijhydene.2020.07.142

Reversible, all-perovskite SOFCs based on La, Sr gallates

Antonella Glisenti, Andrea Bedon, Giovanni Carollo, Cristian Savaniu, John T.S. Irvine

Research output: Contribution to journal › Article › peer-review

Abstract

In this contribution, a reversible Solid Oxide Cell based on perovskites was developed. La_0.6Sr_0.4Ga_0.3Fe_0.7O₃ (LSGF) was chosen as electrode and deposited onto La_0.9Sr_0.1Ga_0.8Mg_0.2O₃ (LSGM) electrolyte. The cell was investigated from the morphological (SEM) and compatibility (XRD) point of view. Electrochemical investigation confirmed that the cell can operate in fuel cell and in electrolyser modes. Impregnation with CGO and Pd allowed a 15 times increment of the power density (until limit is the cell architecture). The same cell with an impregnated negative electrode was then tested in steam electrolysis mode in a non-reducing environment. The overall performance is slightly lower than state-of-the-art materials and comparable with similar perovskites, and in general is fair considering the needed cell optimization (i.e an anode supported configuration is necessary). The cell (impregnated and not) activates at 0.7 V. Obtained data suggest thus LSGF/LSGM/LSGF cell, is promising as reversible SOC for intermediate temperature.

Original language	English
Journal	International Journal of Hydrogen Energy
Volume	In press
Early online date	10 Aug 2020
DOIs	https://doi.org/10.1016/j.ijhydene.2020.07.142
Publication status	E-pub ahead of print - 10 Aug 2020

Keywords

Reversible solid oxide fuel cell
Symmetric SOFC
Energy storage
Perovskites
LSGF/LSGM
Anode

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10.1016/j.ijhydene.2020.07.142

Glisenti_2020_IJHE_Reversible_AAM
Copyright © 2020 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved. This work has been made available online in accordance with publisher policies or with permission. Permission for further reuse of this content should be sought from the publisher or the rights holder. This is the author created accepted manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1016/j.ijhydene.2020.07.142
Accepted author manuscript, 863 KBLicence: CC BY-NC-ND

Cite this

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title = "Reversible, all-perovskite SOFCs based on La, Sr gallates",

abstract = "In this contribution, a reversible Solid Oxide Cell based on perovskites was developed. La0.6Sr0.4Ga0.3Fe0.7O3 (LSGF) was chosen as electrode and deposited onto La0.9Sr0.1Ga0.8Mg0.2O3 (LSGM) electrolyte. The cell was investigated from the morphological (SEM) and compatibility (XRD) point of view. Electrochemical investigation confirmed that the cell can operate in fuel cell and in electrolyser modes. Impregnation with CGO and Pd allowed a 15 times increment of the power density (until limit is the cell architecture). The same cell with an impregnated negative electrode was then tested in steam electrolysis mode in a non-reducing environment. The overall performance is slightly lower than state-of-the-art materials and comparable with similar perovskites, and in general is fair considering the needed cell optimization (i.e an anode supported configuration is necessary). The cell (impregnated and not) activates at 0.7 V. Obtained data suggest thus LSGF/LSGM/LSGF cell, is promising as reversible SOC for intermediate temperature.",

keywords = "Reversible solid oxide fuel cell, Symmetric SOFC, Energy storage, Perovskites, LSGF/LSGM, Anode",

author = "Antonella Glisenti and Andrea Bedon and Giovanni Carollo and Cristian Savaniu and Irvine, {John T.S.}",

year = "2020",

month = aug,

day = "10",

doi = "10.1016/j.ijhydene.2020.07.142",

language = "English",

volume = "In press",

journal = "International Journal of Hydrogen Energy",

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T1 - Reversible, all-perovskite SOFCs based on La, Sr gallates

AU - Glisenti, Antonella

AU - Bedon, Andrea

AU - Carollo, Giovanni

AU - Savaniu, Cristian

AU - Irvine, John T.S.

PY - 2020/8/10

Y1 - 2020/8/10

N2 - In this contribution, a reversible Solid Oxide Cell based on perovskites was developed. La0.6Sr0.4Ga0.3Fe0.7O3 (LSGF) was chosen as electrode and deposited onto La0.9Sr0.1Ga0.8Mg0.2O3 (LSGM) electrolyte. The cell was investigated from the morphological (SEM) and compatibility (XRD) point of view. Electrochemical investigation confirmed that the cell can operate in fuel cell and in electrolyser modes. Impregnation with CGO and Pd allowed a 15 times increment of the power density (until limit is the cell architecture). The same cell with an impregnated negative electrode was then tested in steam electrolysis mode in a non-reducing environment. The overall performance is slightly lower than state-of-the-art materials and comparable with similar perovskites, and in general is fair considering the needed cell optimization (i.e an anode supported configuration is necessary). The cell (impregnated and not) activates at 0.7 V. Obtained data suggest thus LSGF/LSGM/LSGF cell, is promising as reversible SOC for intermediate temperature.

AB - In this contribution, a reversible Solid Oxide Cell based on perovskites was developed. La0.6Sr0.4Ga0.3Fe0.7O3 (LSGF) was chosen as electrode and deposited onto La0.9Sr0.1Ga0.8Mg0.2O3 (LSGM) electrolyte. The cell was investigated from the morphological (SEM) and compatibility (XRD) point of view. Electrochemical investigation confirmed that the cell can operate in fuel cell and in electrolyser modes. Impregnation with CGO and Pd allowed a 15 times increment of the power density (until limit is the cell architecture). The same cell with an impregnated negative electrode was then tested in steam electrolysis mode in a non-reducing environment. The overall performance is slightly lower than state-of-the-art materials and comparable with similar perovskites, and in general is fair considering the needed cell optimization (i.e an anode supported configuration is necessary). The cell (impregnated and not) activates at 0.7 V. Obtained data suggest thus LSGF/LSGM/LSGF cell, is promising as reversible SOC for intermediate temperature.

KW - Reversible solid oxide fuel cell

KW - Symmetric SOFC

KW - Energy storage

KW - Perovskites

KW - LSGF/LSGM

KW - Anode

U2 - 10.1016/j.ijhydene.2020.07.142

DO - 10.1016/j.ijhydene.2020.07.142

M3 - Article

SN - 0360-3199

VL - In press

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

ER -

Reversible, all-perovskite SOFCs based on La, Sr gallates

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Keywords

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