Highly active and stable Er0.4Bi1.6O3 decorated La0.76Sr0.19MnO3+δ nanostructured oxygen electrodes for reversible solid oxide cells
Bismuth based oxides have excellent ionic conductivity and fast oxygen surface kinetics and show promising potential as highly active electrode materials in solid oxide cells (SOCs) such as solid oxide fuel cells (SOFCs) and solid oxide electrolysis cells (SOECs). However, the low melting temperatur...
| Main Authors: | , , , , , , , |
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| Format: | Journal Article |
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R S C Publications
2017
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| Online Access: | http://purl.org/au-research/grants/arc/DP150102025 http://hdl.handle.net/20.500.11937/57053 |
| _version_ | 1848760003654057984 |
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| author | Ai, N. Li, N. He, S. Cheng, Y. Saunders, M. Chen, K. Zhang, T. Jiang, San Ping |
| author_facet | Ai, N. Li, N. He, S. Cheng, Y. Saunders, M. Chen, K. Zhang, T. Jiang, San Ping |
| author_sort | Ai, N. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Bismuth based oxides have excellent ionic conductivity and fast oxygen surface kinetics and show promising potential as highly active electrode materials in solid oxide cells (SOCs) such as solid oxide fuel cells (SOFCs) and solid oxide electrolysis cells (SOECs). However, the low melting temperature and high activity of bismuth based oxides severely limit their wide applications in SOCs. Herein, we successfully synthesized a 40 wt% Er 0.4 Bi 1.6 O 3 decorated La 0.76 Sr 0.19 MnO 3+d (ESB-LSM) electrode via a new gelation method and directly assembled it on a Ni-yttria-stabilized zirconia (Ni-YSZ) cermet supported YSZ electrolyte cell without the conventional high temperature pre-sintering step. ESB decoration substantially enhances the electrocatalytic activity of the LSM electrode for the oxygen reduction/evolution reactions (ORR/OER). A YSZ electrolyte cell with the directly assembled ESB-LSM electrode exhibits a peak power density of 1.62 W cm -2 at 750 °C, significantly higher than 0.48 and 0.88 W cm -2 obtained on cells with a directly assembled pristine LSM and LSM-YSZ composite electrode, respectively. Most importantly the cells with the directly assembled ESB-LSM oxygen electrodes show excellent stability in SOFC, SOEC and reversible SOC operating modes for over 200 h. The present study demonstrates a significant advancement in the development of bismuth based oxide decorated high performance and stable oxygen electrodes for reversible SOCs. |
| first_indexed | 2025-11-14T10:08:52Z |
| format | Journal Article |
| id | curtin-20.500.11937-57053 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:08:52Z |
| publishDate | 2017 |
| publisher | R S C Publications |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-570532022-10-12T06:33:27Z Highly active and stable Er0.4Bi1.6O3 decorated La0.76Sr0.19MnO3+δ nanostructured oxygen electrodes for reversible solid oxide cells Ai, N. Li, N. He, S. Cheng, Y. Saunders, M. Chen, K. Zhang, T. Jiang, San Ping Bismuth based oxides have excellent ionic conductivity and fast oxygen surface kinetics and show promising potential as highly active electrode materials in solid oxide cells (SOCs) such as solid oxide fuel cells (SOFCs) and solid oxide electrolysis cells (SOECs). However, the low melting temperature and high activity of bismuth based oxides severely limit their wide applications in SOCs. Herein, we successfully synthesized a 40 wt% Er 0.4 Bi 1.6 O 3 decorated La 0.76 Sr 0.19 MnO 3+d (ESB-LSM) electrode via a new gelation method and directly assembled it on a Ni-yttria-stabilized zirconia (Ni-YSZ) cermet supported YSZ electrolyte cell without the conventional high temperature pre-sintering step. ESB decoration substantially enhances the electrocatalytic activity of the LSM electrode for the oxygen reduction/evolution reactions (ORR/OER). A YSZ electrolyte cell with the directly assembled ESB-LSM electrode exhibits a peak power density of 1.62 W cm -2 at 750 °C, significantly higher than 0.48 and 0.88 W cm -2 obtained on cells with a directly assembled pristine LSM and LSM-YSZ composite electrode, respectively. Most importantly the cells with the directly assembled ESB-LSM oxygen electrodes show excellent stability in SOFC, SOEC and reversible SOC operating modes for over 200 h. The present study demonstrates a significant advancement in the development of bismuth based oxide decorated high performance and stable oxygen electrodes for reversible SOCs. 2017 Journal Article http://hdl.handle.net/20.500.11937/57053 10.1039/c7ta02950k http://purl.org/au-research/grants/arc/DP150102025 http://purl.org/au-research/grants/arc/DP150102044 http://creativecommons.org/licenses/by/3.0/ R S C Publications fulltext |
| spellingShingle | Ai, N. Li, N. He, S. Cheng, Y. Saunders, M. Chen, K. Zhang, T. Jiang, San Ping Highly active and stable Er0.4Bi1.6O3 decorated La0.76Sr0.19MnO3+δ nanostructured oxygen electrodes for reversible solid oxide cells |
| title | Highly active and stable Er0.4Bi1.6O3 decorated La0.76Sr0.19MnO3+δ nanostructured oxygen electrodes for reversible solid oxide cells |
| title_full | Highly active and stable Er0.4Bi1.6O3 decorated La0.76Sr0.19MnO3+δ nanostructured oxygen electrodes for reversible solid oxide cells |
| title_fullStr | Highly active and stable Er0.4Bi1.6O3 decorated La0.76Sr0.19MnO3+δ nanostructured oxygen electrodes for reversible solid oxide cells |
| title_full_unstemmed | Highly active and stable Er0.4Bi1.6O3 decorated La0.76Sr0.19MnO3+δ nanostructured oxygen electrodes for reversible solid oxide cells |
| title_short | Highly active and stable Er0.4Bi1.6O3 decorated La0.76Sr0.19MnO3+δ nanostructured oxygen electrodes for reversible solid oxide cells |
| title_sort | highly active and stable er0.4bi1.6o3 decorated la0.76sr0.19mno3+δ nanostructured oxygen electrodes for reversible solid oxide cells |
| url | http://purl.org/au-research/grants/arc/DP150102025 http://purl.org/au-research/grants/arc/DP150102025 http://hdl.handle.net/20.500.11937/57053 |