Robust Ruddlesden‐Popper phase Sr3Fe1.3Mo0.5Ni0.2O7‐δ decorated with in‐situ exsolved Ni nanoparticles as an efficient anode for hydrocarbon fueled solid oxide fuel cells
Abstract A highly efficient Ruddlesden‐Popper structure anode material with a formula of Sr3Fe1.3Mo0.5Ni0.2O7‐δ (RP‐SFMN) has been developed for hydrocarbon fueled solid oxide fuel cells (HF‐SOFC) application. It is demonstrated that a nanostructured RP‐SFMN anode decorated with in‐situ exsolved Ni...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2022-08-01
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| Series: | SusMat |
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| Online Access: | https://doi.org/10.1002/sus2.58 |
| _version_ | 1811281102843674624 |
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| author | Xiaoyu Zhang Yawen Tong Tong Liu Dong Zhang Na Yu Jian Zhou Yueqin Li Xiang‐Kui Gu Yao Wang |
| author_facet | Xiaoyu Zhang Yawen Tong Tong Liu Dong Zhang Na Yu Jian Zhou Yueqin Li Xiang‐Kui Gu Yao Wang |
| author_sort | Xiaoyu Zhang |
| collection | DOAJ |
| description | Abstract A highly efficient Ruddlesden‐Popper structure anode material with a formula of Sr3Fe1.3Mo0.5Ni0.2O7‐δ (RP‐SFMN) has been developed for hydrocarbon fueled solid oxide fuel cells (HF‐SOFC) application. It is demonstrated that a nanostructured RP‐SFMN anode decorated with in‐situ exsolved Ni nanoparticles (Ni@RP‐SFMN) has been successfully prepared by annealing the anode in reducing atmosphere similar to the operating conditions. The phase compositions, valence states, morphologies, and electrocatalytic activities of RP‐SFMN material have been characterized in detail. In addition, the in‐situ exsolution mechanism of the metallic Ni phase from the parent oxide is clearly explained by using density function theory calculation. The peak output power density at 800°C is significantly enhanced from 0.163 to 0.409 W/cm2 while the electrode polarization resistance is effectively lowered from 0.96 to 0.30 Ω cm2 by the substitution of B‐site Fe by Ni, which is attributed to the improved electrocatalytic activities induced by the in‐situ exsolved Ni nanocatalysts. Moreover, the single cell with RP‐SFMN anode exhibits good stability in 3% H2O humidified H2 and syngas for 110 and 60 h at 800°C, respectively. Our findings indicate that RP‐SFMN is a greatly promising anode candidate of HF‐SOFCs due to its good electrochemical performance and stability during the operation. |
| first_indexed | 2024-04-13T01:26:16Z |
| format | Article |
| id | doaj.art-3ff344e9c5cf483eb2ed2e3dcc2469c2 |
| institution | Directory Open Access Journal |
| issn | 2692-4552 |
| language | English |
| last_indexed | 2024-04-13T01:26:16Z |
| publishDate | 2022-08-01 |
| publisher | Wiley |
| record_format | Article |
| series | SusMat |
| spelling | doaj.art-3ff344e9c5cf483eb2ed2e3dcc2469c22022-12-22T03:08:37ZengWileySusMat2692-45522022-08-012448750110.1002/sus2.58Robust Ruddlesden‐Popper phase Sr3Fe1.3Mo0.5Ni0.2O7‐δ decorated with in‐situ exsolved Ni nanoparticles as an efficient anode for hydrocarbon fueled solid oxide fuel cellsXiaoyu Zhang0Yawen Tong1Tong Liu2Dong Zhang3Na Yu4Jian Zhou5Yueqin Li6Xiang‐Kui Gu7Yao Wang8Key Laboratory of Hydraulic Machinery Transients (Wuhan University) Ministry of Education, School of Power and Mechanical Engineering Wuhan University Wuhan Hubei ChinaKey Laboratory of Hydraulic Machinery Transients (Wuhan University) Ministry of Education, School of Power and Mechanical Engineering Wuhan University Wuhan Hubei ChinaKey Laboratory of Hydraulic Machinery Transients (Wuhan University) Ministry of Education, School of Power and Mechanical Engineering Wuhan University Wuhan Hubei ChinaKey Laboratory of Hydraulic Machinery Transients (Wuhan University) Ministry of Education, School of Power and Mechanical Engineering Wuhan University Wuhan Hubei ChinaKey Laboratory of Hydraulic Machinery Transients (Wuhan University) Ministry of Education, School of Power and Mechanical Engineering Wuhan University Wuhan Hubei ChinaKey Laboratory of Hydraulic Machinery Transients (Wuhan University) Ministry of Education, School of Power and Mechanical Engineering Wuhan University Wuhan Hubei ChinaKey Laboratory of Hydraulic Machinery Transients (Wuhan University) Ministry of Education, School of Power and Mechanical Engineering Wuhan University Wuhan Hubei ChinaKey Laboratory of Hydraulic Machinery Transients (Wuhan University) Ministry of Education, School of Power and Mechanical Engineering Wuhan University Wuhan Hubei ChinaKey Laboratory of Hydraulic Machinery Transients (Wuhan University) Ministry of Education, School of Power and Mechanical Engineering Wuhan University Wuhan Hubei ChinaAbstract A highly efficient Ruddlesden‐Popper structure anode material with a formula of Sr3Fe1.3Mo0.5Ni0.2O7‐δ (RP‐SFMN) has been developed for hydrocarbon fueled solid oxide fuel cells (HF‐SOFC) application. It is demonstrated that a nanostructured RP‐SFMN anode decorated with in‐situ exsolved Ni nanoparticles (Ni@RP‐SFMN) has been successfully prepared by annealing the anode in reducing atmosphere similar to the operating conditions. The phase compositions, valence states, morphologies, and electrocatalytic activities of RP‐SFMN material have been characterized in detail. In addition, the in‐situ exsolution mechanism of the metallic Ni phase from the parent oxide is clearly explained by using density function theory calculation. The peak output power density at 800°C is significantly enhanced from 0.163 to 0.409 W/cm2 while the electrode polarization resistance is effectively lowered from 0.96 to 0.30 Ω cm2 by the substitution of B‐site Fe by Ni, which is attributed to the improved electrocatalytic activities induced by the in‐situ exsolved Ni nanocatalysts. Moreover, the single cell with RP‐SFMN anode exhibits good stability in 3% H2O humidified H2 and syngas for 110 and 60 h at 800°C, respectively. Our findings indicate that RP‐SFMN is a greatly promising anode candidate of HF‐SOFCs due to its good electrochemical performance and stability during the operation.https://doi.org/10.1002/sus2.58density function theoryin‐situ exsolutionnanostructured anodeRuddlesden‐Popper oxidesolid oxide fuel cells |
| spellingShingle | Xiaoyu Zhang Yawen Tong Tong Liu Dong Zhang Na Yu Jian Zhou Yueqin Li Xiang‐Kui Gu Yao Wang Robust Ruddlesden‐Popper phase Sr3Fe1.3Mo0.5Ni0.2O7‐δ decorated with in‐situ exsolved Ni nanoparticles as an efficient anode for hydrocarbon fueled solid oxide fuel cells SusMat density function theory in‐situ exsolution nanostructured anode Ruddlesden‐Popper oxide solid oxide fuel cells |
| title | Robust Ruddlesden‐Popper phase Sr3Fe1.3Mo0.5Ni0.2O7‐δ decorated with in‐situ exsolved Ni nanoparticles as an efficient anode for hydrocarbon fueled solid oxide fuel cells |
| title_full | Robust Ruddlesden‐Popper phase Sr3Fe1.3Mo0.5Ni0.2O7‐δ decorated with in‐situ exsolved Ni nanoparticles as an efficient anode for hydrocarbon fueled solid oxide fuel cells |
| title_fullStr | Robust Ruddlesden‐Popper phase Sr3Fe1.3Mo0.5Ni0.2O7‐δ decorated with in‐situ exsolved Ni nanoparticles as an efficient anode for hydrocarbon fueled solid oxide fuel cells |
| title_full_unstemmed | Robust Ruddlesden‐Popper phase Sr3Fe1.3Mo0.5Ni0.2O7‐δ decorated with in‐situ exsolved Ni nanoparticles as an efficient anode for hydrocarbon fueled solid oxide fuel cells |
| title_short | Robust Ruddlesden‐Popper phase Sr3Fe1.3Mo0.5Ni0.2O7‐δ decorated with in‐situ exsolved Ni nanoparticles as an efficient anode for hydrocarbon fueled solid oxide fuel cells |
| title_sort | robust ruddlesden popper phase sr3fe1 3mo0 5ni0 2o7 δ decorated with in situ exsolved ni nanoparticles as an efficient anode for hydrocarbon fueled solid oxide fuel cells |
| topic | density function theory in‐situ exsolution nanostructured anode Ruddlesden‐Popper oxide solid oxide fuel cells |
| url | https://doi.org/10.1002/sus2.58 |
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