Surface modification of Sr2Fe1.5Mo0.5O6-δ perovskite electrode with Ru nanoparticles via plasma-enhanced atomic layer deposition for solid oxide fuel cells
This study demonstrates the use of plasma-enhanced atomic layer deposition (PEALD) to deposit uniformly distributed Ru nanoparticles on a Sr2Fe1.5Mo0.5O6-δ (SFMO) perovskite cathode as a surface modification strategy to improve electrode performance. The PEALD Ru nanoparticles covered the SFMO surfa...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2025
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| Online Access: | https://hdl.handle.net/10356/182498 |
| _version_ | 1826113219092021248 |
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| author | Shin, Jeong Woo Park, Geonwoo Shin, Jiyoon Li, Hao-Yang An, Jihwan Su, Pei-Chen |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Shin, Jeong Woo Park, Geonwoo Shin, Jiyoon Li, Hao-Yang An, Jihwan Su, Pei-Chen |
| author_sort | Shin, Jeong Woo |
| collection | NTU |
| description | This study demonstrates the use of plasma-enhanced atomic layer deposition (PEALD) to deposit uniformly distributed Ru nanoparticles on a Sr2Fe1.5Mo0.5O6-δ (SFMO) perovskite cathode as a surface modification strategy to improve electrode performance. The PEALD Ru nanoparticles covered the SFMO surface with superior uniformity and high density, significantly enhancing the surface reaction steps of oxygen reduction reactions (ORR). SOFCs with Ru-coated SFMO cathode showed a peak power density of 983 mW/cm2 at 700 °C, a 47 % increase over the SOFCs using bare SFMO cathode. In addition, the presence of high-density Ru nanoparticles also suppressed the Sr surface segregation, which is a chronic issue that deteriorates the long-term stability of Sr-containing perovskite electrodes. The cell performance was maintained for more than 20 h without significant degradation compared to cells using a bare SFMO cathode. |
| first_indexed | 2025-03-09T10:47:55Z |
| format | Journal Article |
| id | ntu-10356/182498 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-03-09T10:47:55Z |
| publishDate | 2025 |
| record_format | dspace |
| spelling | ntu-10356/1824982025-02-05T02:02:28Z Surface modification of Sr2Fe1.5Mo0.5O6-δ perovskite electrode with Ru nanoparticles via plasma-enhanced atomic layer deposition for solid oxide fuel cells Shin, Jeong Woo Park, Geonwoo Shin, Jiyoon Li, Hao-Yang An, Jihwan Su, Pei-Chen School of Mechanical and Aerospace Engineering Engineering Solid oxide fuel cells Plasma-enhanced atomic layer deposition This study demonstrates the use of plasma-enhanced atomic layer deposition (PEALD) to deposit uniformly distributed Ru nanoparticles on a Sr2Fe1.5Mo0.5O6-δ (SFMO) perovskite cathode as a surface modification strategy to improve electrode performance. The PEALD Ru nanoparticles covered the SFMO surface with superior uniformity and high density, significantly enhancing the surface reaction steps of oxygen reduction reactions (ORR). SOFCs with Ru-coated SFMO cathode showed a peak power density of 983 mW/cm2 at 700 °C, a 47 % increase over the SOFCs using bare SFMO cathode. In addition, the presence of high-density Ru nanoparticles also suppressed the Sr surface segregation, which is a chronic issue that deteriorates the long-term stability of Sr-containing perovskite electrodes. The cell performance was maintained for more than 20 h without significant degradation compared to cells using a bare SFMO cathode. Ministry of Education (MOE) This paper was supported by AcRF Tier 1 Grant No. RG73/22 from Singapore Ministry of Education. 2025-02-05T02:02:28Z 2025-02-05T02:02:28Z 2025 Journal Article Shin, J. W., Park, G., Shin, J., Li, H., An, J. & Su, P. (2025). Surface modification of Sr2Fe1.5Mo0.5O6-δ perovskite electrode with Ru nanoparticles via plasma-enhanced atomic layer deposition for solid oxide fuel cells. Materials Chemistry and Physics, 332, 130255-. https://dx.doi.org/10.1016/j.matchemphys.2024.130255 0254-0584 https://hdl.handle.net/10356/182498 10.1016/j.matchemphys.2024.130255 2-s2.0-85211590395 332 130255 en RG73/22 Materials Chemistry and Physics © 2024 Published by Elsevier B.V. All rights reserved. |
| spellingShingle | Engineering Solid oxide fuel cells Plasma-enhanced atomic layer deposition Shin, Jeong Woo Park, Geonwoo Shin, Jiyoon Li, Hao-Yang An, Jihwan Su, Pei-Chen Surface modification of Sr2Fe1.5Mo0.5O6-δ perovskite electrode with Ru nanoparticles via plasma-enhanced atomic layer deposition for solid oxide fuel cells |
| title | Surface modification of Sr2Fe1.5Mo0.5O6-δ perovskite electrode with Ru nanoparticles via plasma-enhanced atomic layer deposition for solid oxide fuel cells |
| title_full | Surface modification of Sr2Fe1.5Mo0.5O6-δ perovskite electrode with Ru nanoparticles via plasma-enhanced atomic layer deposition for solid oxide fuel cells |
| title_fullStr | Surface modification of Sr2Fe1.5Mo0.5O6-δ perovskite electrode with Ru nanoparticles via plasma-enhanced atomic layer deposition for solid oxide fuel cells |
| title_full_unstemmed | Surface modification of Sr2Fe1.5Mo0.5O6-δ perovskite electrode with Ru nanoparticles via plasma-enhanced atomic layer deposition for solid oxide fuel cells |
| title_short | Surface modification of Sr2Fe1.5Mo0.5O6-δ perovskite electrode with Ru nanoparticles via plasma-enhanced atomic layer deposition for solid oxide fuel cells |
| title_sort | surface modification of sr2fe1 5mo0 5o6 δ perovskite electrode with ru nanoparticles via plasma enhanced atomic layer deposition for solid oxide fuel cells |
| topic | Engineering Solid oxide fuel cells Plasma-enhanced atomic layer deposition |
| url | https://hdl.handle.net/10356/182498 |
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