Synergistic proton conduction via Ca-vacancy coupled with Li+-bridge in Ca5(PO4)3OH
Abstract Proton conductivity plays a crucial role in the advancement of materials for proton ceramic fuel cells (PCFCs) and a variety of electrochemical devices. Traditional approaches to enhancing proton conductivity in perovskites have largely relied on doping strategies to induce structural oxyge...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-01-01
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| Series: | Communications Materials |
| Online Access: | https://doi.org/10.1038/s43246-024-00719-6 |
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| _version_ | 1841544413712482304 |
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| author | Nabeela Akbar Qing Pang Yaokai Lu Yifu Jing Manish Singh Jun Wang Bin Zhu Faze Wang Sining Yun |
| author_facet | Nabeela Akbar Qing Pang Yaokai Lu Yifu Jing Manish Singh Jun Wang Bin Zhu Faze Wang Sining Yun |
| author_sort | Nabeela Akbar |
| collection | DOAJ |
| description | Abstract Proton conductivity plays a crucial role in the advancement of materials for proton ceramic fuel cells (PCFCs) and a variety of electrochemical devices. Traditional approaches to enhancing proton conductivity in perovskites have largely relied on doping strategies to induce structural oxygen vacancies. However, these methods have yet to overcome the challenges associated with achieving desired proton conductivity. Here, we introduce an approach wherein intermediate Li+ ions act as a bridge linked to Ca vacancies, fostering a mechanism for accelerated proton transport. Utilizing protonated Ca5(PO4)3OH-H(Li) as an electrolyte, we achieve a proton conductivity of 0.1 S cm−1 and a fuel cell performance of 661 mW cm−2 at an operational temperature of 550 °C for realizing low temperature PCFCs. This proton transport synergy overcomes traditional doping limitations, enabling the advancement of proton-conducting electrolytes and enhancing the efficiency of proton conducting electrolyte fuel cells, with implications in energy conversion and storage technologies. |
| format | Article |
| id | doaj-art-18b4fceb2a854b5d9c8bcadb847ce33a |
| institution | Kabale University |
| issn | 2662-4443 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Communications Materials |
| spelling | doaj-art-18b4fceb2a854b5d9c8bcadb847ce33a2025-01-12T12:32:49ZengNature PortfolioCommunications Materials2662-44432025-01-016111010.1038/s43246-024-00719-6Synergistic proton conduction via Ca-vacancy coupled with Li+-bridge in Ca5(PO4)3OHNabeela Akbar0Qing Pang1Yaokai Lu2Yifu Jing3Manish Singh4Jun Wang5Bin Zhu6Faze Wang7Sining Yun8School of Energy and Environment, Southeast UniversityCollege of Science, Xi’an University of Architecture and TechnologySchool of Energy and Environment, Southeast UniversityDepartment of Material Science, Shenzhen MSU-BIT UniversityDepartment of Metallurgical and Materials Engineering, Indian Institute of Technology PatnaSchool of Energy and Environment, Southeast UniversitySchool of Energy and Environment, Southeast UniversitySchool of Energy and Environment, Southeast UniversitySchool of Materials Science and Engineering, Xi’an University of Architecture and TechnologyAbstract Proton conductivity plays a crucial role in the advancement of materials for proton ceramic fuel cells (PCFCs) and a variety of electrochemical devices. Traditional approaches to enhancing proton conductivity in perovskites have largely relied on doping strategies to induce structural oxygen vacancies. However, these methods have yet to overcome the challenges associated with achieving desired proton conductivity. Here, we introduce an approach wherein intermediate Li+ ions act as a bridge linked to Ca vacancies, fostering a mechanism for accelerated proton transport. Utilizing protonated Ca5(PO4)3OH-H(Li) as an electrolyte, we achieve a proton conductivity of 0.1 S cm−1 and a fuel cell performance of 661 mW cm−2 at an operational temperature of 550 °C for realizing low temperature PCFCs. This proton transport synergy overcomes traditional doping limitations, enabling the advancement of proton-conducting electrolytes and enhancing the efficiency of proton conducting electrolyte fuel cells, with implications in energy conversion and storage technologies.https://doi.org/10.1038/s43246-024-00719-6 |
| spellingShingle | Nabeela Akbar Qing Pang Yaokai Lu Yifu Jing Manish Singh Jun Wang Bin Zhu Faze Wang Sining Yun Synergistic proton conduction via Ca-vacancy coupled with Li+-bridge in Ca5(PO4)3OH Communications Materials |
| title | Synergistic proton conduction via Ca-vacancy coupled with Li+-bridge in Ca5(PO4)3OH |
| title_full | Synergistic proton conduction via Ca-vacancy coupled with Li+-bridge in Ca5(PO4)3OH |
| title_fullStr | Synergistic proton conduction via Ca-vacancy coupled with Li+-bridge in Ca5(PO4)3OH |
| title_full_unstemmed | Synergistic proton conduction via Ca-vacancy coupled with Li+-bridge in Ca5(PO4)3OH |
| title_short | Synergistic proton conduction via Ca-vacancy coupled with Li+-bridge in Ca5(PO4)3OH |
| title_sort | synergistic proton conduction via ca vacancy coupled with li bridge in ca5 po4 3oh |
| url | https://doi.org/10.1038/s43246-024-00719-6 |
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