A highly proton conductive perfluorinated covalent triazine framework via low-temperature synthesis
Abstract Proton-conducting materials are essential to the emerging hydrogen economy. Covalent triazine frameworks (CTFs) are promising proton-conducting materials at high temperatures but need more effective sites to strengthen interaction for proton carriers. However, their construction and design...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2023-12-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-023-43829-4 |
| _version_ | 1797397903190261760 |
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| author | Lijiang Guan Zhaoqi Guo Qi Zhou Jin Zhang Cheng Cheng Shengyao Wang Xiang Zhu Sheng Dai Shangbin Jin |
| author_facet | Lijiang Guan Zhaoqi Guo Qi Zhou Jin Zhang Cheng Cheng Shengyao Wang Xiang Zhu Sheng Dai Shangbin Jin |
| author_sort | Lijiang Guan |
| collection | DOAJ |
| description | Abstract Proton-conducting materials are essential to the emerging hydrogen economy. Covalent triazine frameworks (CTFs) are promising proton-conducting materials at high temperatures but need more effective sites to strengthen interaction for proton carriers. However, their construction and design in a concise condition are still challenges. Herein, we show a low temperature approach to synthesize CTFs via a direct cyclotrimerization of aromatic aldehyde using ammonium iodide as facile nitrogen source. Among the CTFs, the perfluorinated CTF (CTF-TF) was successfully synthesized with much lower temperature ( ≤ 160 °C) and open-air atmosphere. Due to the additional hydrogen-bonding interaction between fluorine atoms and proton carriers (H3PO4), the CTF-TF achieves a proton conductivity of 1.82 × 10−1 S cm−1 at 150 °C after H3PO4 loading. Moreover, the CTF-TF can be readily integrated into mixed matrix membranes, displaying high proton conduction abilities and good mechanical strength. This work provides an alternative strategy for rational design of proton conducting media. |
| first_indexed | 2024-03-09T01:17:56Z |
| format | Article |
| id | doaj.art-c482c836cac34aeeb96453d830690466 |
| institution | Directory Open Access Journal |
| issn | 2041-1723 |
| language | English |
| last_indexed | 2024-03-09T01:17:56Z |
| publishDate | 2023-12-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj.art-c482c836cac34aeeb96453d8306904662023-12-10T12:23:31ZengNature PortfolioNature Communications2041-17232023-12-011411910.1038/s41467-023-43829-4A highly proton conductive perfluorinated covalent triazine framework via low-temperature synthesisLijiang Guan0Zhaoqi Guo1Qi Zhou2Jin Zhang3Cheng Cheng4Shengyao Wang5Xiang Zhu6Sheng Dai7Shangbin Jin8School of Chemical Engineering and Technology, Xi’an Jiaotong UniversitySchool of Chemical Engineering, Northwest UniversitySchool of Chemical Engineering and Technology, Xi’an Jiaotong UniversitySchool of Chemical Engineering and Technology, Xi’an Jiaotong UniversitySchool of Chemical Engineering and Technology, Xi’an Jiaotong UniversityCollege of Science, Huazhong Agricultural UniversityState Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of Lanzhou Institute of Chemical Physics, Chinese Academy of SciencesChemical Sciences Division, Oak Ridge National LaboratorySchool of Chemical Engineering and Technology, Xi’an Jiaotong UniversityAbstract Proton-conducting materials are essential to the emerging hydrogen economy. Covalent triazine frameworks (CTFs) are promising proton-conducting materials at high temperatures but need more effective sites to strengthen interaction for proton carriers. However, their construction and design in a concise condition are still challenges. Herein, we show a low temperature approach to synthesize CTFs via a direct cyclotrimerization of aromatic aldehyde using ammonium iodide as facile nitrogen source. Among the CTFs, the perfluorinated CTF (CTF-TF) was successfully synthesized with much lower temperature ( ≤ 160 °C) and open-air atmosphere. Due to the additional hydrogen-bonding interaction between fluorine atoms and proton carriers (H3PO4), the CTF-TF achieves a proton conductivity of 1.82 × 10−1 S cm−1 at 150 °C after H3PO4 loading. Moreover, the CTF-TF can be readily integrated into mixed matrix membranes, displaying high proton conduction abilities and good mechanical strength. This work provides an alternative strategy for rational design of proton conducting media.https://doi.org/10.1038/s41467-023-43829-4 |
| spellingShingle | Lijiang Guan Zhaoqi Guo Qi Zhou Jin Zhang Cheng Cheng Shengyao Wang Xiang Zhu Sheng Dai Shangbin Jin A highly proton conductive perfluorinated covalent triazine framework via low-temperature synthesis Nature Communications |
| title | A highly proton conductive perfluorinated covalent triazine framework via low-temperature synthesis |
| title_full | A highly proton conductive perfluorinated covalent triazine framework via low-temperature synthesis |
| title_fullStr | A highly proton conductive perfluorinated covalent triazine framework via low-temperature synthesis |
| title_full_unstemmed | A highly proton conductive perfluorinated covalent triazine framework via low-temperature synthesis |
| title_short | A highly proton conductive perfluorinated covalent triazine framework via low-temperature synthesis |
| title_sort | highly proton conductive perfluorinated covalent triazine framework via low temperature synthesis |
| url | https://doi.org/10.1038/s41467-023-43829-4 |
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