Tailoring Pr0.5Sr0.5FeO3 oxides with Mn cations as a cathode for proton-conducting solid oxide fuel cells
The traditional Pr0.5Sr0.5FeO3 (PSF) cathode is customized with Mn cations to generate the new Pr0.5Sr0.5Fe0.9Mn0.1O3 (PSFMn) cathode for proton-conducting solid oxide fuel cells (H-SOFCs). Compared to the PSF oxide, the new PSFMn has a reduced thermal expansion, making it more compatible with elect...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-04-01
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| Series: | Electrochemistry Communications |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1388248124000286 |
| _version_ | 1797287644670984192 |
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| author | Xin Yang Guoqiang Li Yue Zhou Chongzheng Sun Lei Bi |
| author_facet | Xin Yang Guoqiang Li Yue Zhou Chongzheng Sun Lei Bi |
| author_sort | Xin Yang |
| collection | DOAJ |
| description | The traditional Pr0.5Sr0.5FeO3 (PSF) cathode is customized with Mn cations to generate the new Pr0.5Sr0.5Fe0.9Mn0.1O3 (PSFMn) cathode for proton-conducting solid oxide fuel cells (H-SOFCs). Compared to the PSF oxide, the new PSFMn has a reduced thermal expansion, making it more compatible with electrolytes. Furthermore, Mn-doping enhances oxygen vacancy production in PSF, as revealed by experimental and first-principle calculations. More crucially, doping Mn into PSF improves proton diffusion kinetics, resulting in quicker proton diffusion and surface exchange. As a result, the H-SOFC with the PSFMn cathode achieves an output of 1446 mW cm−2 at 700 °C, but the PSF cell only achieves fuel cell performance of 1009 mW cm−2. The fundamental cause of the increased cell performance is the significantly reduced polarization resistance, implying that using the Mn-doping strategy enhances the cathode kinetics of conventional PSF cathodes for H-SOFC. |
| first_indexed | 2024-03-07T18:36:22Z |
| format | Article |
| id | doaj.art-9270f22165004bec926d2ca6c47d27f1 |
| institution | Directory Open Access Journal |
| issn | 1388-2481 |
| language | English |
| last_indexed | 2024-03-07T18:36:22Z |
| publishDate | 2024-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Electrochemistry Communications |
| spelling | doaj.art-9270f22165004bec926d2ca6c47d27f12024-03-02T04:53:49ZengElsevierElectrochemistry Communications1388-24812024-04-01161107685Tailoring Pr0.5Sr0.5FeO3 oxides with Mn cations as a cathode for proton-conducting solid oxide fuel cellsXin Yang0Guoqiang Li1Yue Zhou2Chongzheng Sun3Lei Bi4College of Energy Storage Technology, Shandong University of Science and Technology, Qingdao 266590, China; Corresponding authors.College of Energy Storage Technology, Shandong University of Science and Technology, Qingdao 266590, ChinaCollege of Energy Storage Technology, Shandong University of Science and Technology, Qingdao 266590, ChinaCollege of Energy Storage Technology, Shandong University of Science and Technology, Qingdao 266590, ChinaSchool of Resource Environment and Safety Engineering, University of South China, Hengyang 421001, China; Corresponding authors.The traditional Pr0.5Sr0.5FeO3 (PSF) cathode is customized with Mn cations to generate the new Pr0.5Sr0.5Fe0.9Mn0.1O3 (PSFMn) cathode for proton-conducting solid oxide fuel cells (H-SOFCs). Compared to the PSF oxide, the new PSFMn has a reduced thermal expansion, making it more compatible with electrolytes. Furthermore, Mn-doping enhances oxygen vacancy production in PSF, as revealed by experimental and first-principle calculations. More crucially, doping Mn into PSF improves proton diffusion kinetics, resulting in quicker proton diffusion and surface exchange. As a result, the H-SOFC with the PSFMn cathode achieves an output of 1446 mW cm−2 at 700 °C, but the PSF cell only achieves fuel cell performance of 1009 mW cm−2. The fundamental cause of the increased cell performance is the significantly reduced polarization resistance, implying that using the Mn-doping strategy enhances the cathode kinetics of conventional PSF cathodes for H-SOFC.http://www.sciencedirect.com/science/article/pii/S1388248124000286Pr0.5Sr0.5FeO3CathodeProton-conducting oxidesSOFCs |
| spellingShingle | Xin Yang Guoqiang Li Yue Zhou Chongzheng Sun Lei Bi Tailoring Pr0.5Sr0.5FeO3 oxides with Mn cations as a cathode for proton-conducting solid oxide fuel cells Electrochemistry Communications Pr0.5Sr0.5FeO3 Cathode Proton-conducting oxides SOFCs |
| title | Tailoring Pr0.5Sr0.5FeO3 oxides with Mn cations as a cathode for proton-conducting solid oxide fuel cells |
| title_full | Tailoring Pr0.5Sr0.5FeO3 oxides with Mn cations as a cathode for proton-conducting solid oxide fuel cells |
| title_fullStr | Tailoring Pr0.5Sr0.5FeO3 oxides with Mn cations as a cathode for proton-conducting solid oxide fuel cells |
| title_full_unstemmed | Tailoring Pr0.5Sr0.5FeO3 oxides with Mn cations as a cathode for proton-conducting solid oxide fuel cells |
| title_short | Tailoring Pr0.5Sr0.5FeO3 oxides with Mn cations as a cathode for proton-conducting solid oxide fuel cells |
| title_sort | tailoring pr0 5sr0 5feo3 oxides with mn cations as a cathode for proton conducting solid oxide fuel cells |
| topic | Pr0.5Sr0.5FeO3 Cathode Proton-conducting oxides SOFCs |
| url | http://www.sciencedirect.com/science/article/pii/S1388248124000286 |
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