Facile separation of lithium fluoride to boost the electrical conductivity of MXene sediment
Printing technologies have enabled the low-cost and large-scale production of MXene-based transparent conductive electrodes. Fabrication of inks with MXene monolayers in liquid phase for printing requires bespoke centrifugation separation, and the yield is low. MXene sediment, a byproduct of the cen...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2025-01-01
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| Series: | Materials Research Express |
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| Online Access: | https://doi.org/10.1088/2053-1591/add240 |
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| author | Jiale Huang Zhiyin Cai Jingjin Cai Chengming Yu Shanglin Xiang Dongyu Cai |
| author_facet | Jiale Huang Zhiyin Cai Jingjin Cai Chengming Yu Shanglin Xiang Dongyu Cai |
| author_sort | Jiale Huang |
| collection | DOAJ |
| description | Printing technologies have enabled the low-cost and large-scale production of MXene-based transparent conductive electrodes. Fabrication of inks with MXene monolayers in liquid phase for printing requires bespoke centrifugation separation, and the yield is low. MXene sediment, a byproduct of the centrifugation separation process, is a rich source for creating concentrated MXene inks. However, removing impurities, particularly lithium fluoride, from sediment remains a significant challenge for producing high-quality inks. This study reported the first purification route for removing lithium fluoride from sediment by controlling the addition of lithium fluoride during the etching of MAX precursors. This approach resulted in formation of a concentrated ink consisting of large-sized MXene monolayers. The vacuum-filtered film exhibited ultra-high conductivity exceeding 20,000 S cm ^−1 . Furthermore, gravure printing produced a TCE with a low sheet resistance of 560 Ω sq ^−1 and 84% transmittance without the need of annealing post-treatment. |
| format | Article |
| id | doaj-art-0b345b1674a74cafb018ddcf6ea45ed7 |
| institution | OA Journals |
| issn | 2053-1591 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj-art-0b345b1674a74cafb018ddcf6ea45ed72025-08-20T02:15:16ZengIOP PublishingMaterials Research Express2053-15912025-01-0112505640210.1088/2053-1591/add240Facile separation of lithium fluoride to boost the electrical conductivity of MXene sedimentJiale Huang0Zhiyin Cai1Jingjin Cai2Chengming Yu3Shanglin Xiang4Dongyu Cai5https://orcid.org/0000-0001-9602-8718School of Flexible Electronics (Future Technologies), Institute of Advanced Materials, and Key Laboratory of Flexible Electronics, Nanjing Tech University , 30 South PuZhu Road, Nanjing, Jiangsu, 211816, People’s Republic of ChinaSchool of Flexible Electronics (Future Technologies), Institute of Advanced Materials, and Key Laboratory of Flexible Electronics, Nanjing Tech University , 30 South PuZhu Road, Nanjing, Jiangsu, 211816, People’s Republic of ChinaSchool of Flexible Electronics (Future Technologies), Institute of Advanced Materials, and Key Laboratory of Flexible Electronics, Nanjing Tech University , 30 South PuZhu Road, Nanjing, Jiangsu, 211816, People’s Republic of ChinaSchool of Flexible Electronics (Future Technologies), Institute of Advanced Materials, and Key Laboratory of Flexible Electronics, Nanjing Tech University , 30 South PuZhu Road, Nanjing, Jiangsu, 211816, People’s Republic of ChinaCollege of Materials Science & Engineering, Nanjing Tech University , 30 South PuZhu Road, Nanjing, Jiangsu, 211816, People’s Republic of ChinaSchool of Flexible Electronics (Future Technologies), Institute of Advanced Materials, and Key Laboratory of Flexible Electronics, Nanjing Tech University , 30 South PuZhu Road, Nanjing, Jiangsu, 211816, People’s Republic of ChinaPrinting technologies have enabled the low-cost and large-scale production of MXene-based transparent conductive electrodes. Fabrication of inks with MXene monolayers in liquid phase for printing requires bespoke centrifugation separation, and the yield is low. MXene sediment, a byproduct of the centrifugation separation process, is a rich source for creating concentrated MXene inks. However, removing impurities, particularly lithium fluoride, from sediment remains a significant challenge for producing high-quality inks. This study reported the first purification route for removing lithium fluoride from sediment by controlling the addition of lithium fluoride during the etching of MAX precursors. This approach resulted in formation of a concentrated ink consisting of large-sized MXene monolayers. The vacuum-filtered film exhibited ultra-high conductivity exceeding 20,000 S cm ^−1 . Furthermore, gravure printing produced a TCE with a low sheet resistance of 560 Ω sq ^−1 and 84% transmittance without the need of annealing post-treatment.https://doi.org/10.1088/2053-1591/add240MXene sedimentlithium fluorideprintinginkpurification |
| spellingShingle | Jiale Huang Zhiyin Cai Jingjin Cai Chengming Yu Shanglin Xiang Dongyu Cai Facile separation of lithium fluoride to boost the electrical conductivity of MXene sediment Materials Research Express MXene sediment lithium fluoride printing ink purification |
| title | Facile separation of lithium fluoride to boost the electrical conductivity of MXene sediment |
| title_full | Facile separation of lithium fluoride to boost the electrical conductivity of MXene sediment |
| title_fullStr | Facile separation of lithium fluoride to boost the electrical conductivity of MXene sediment |
| title_full_unstemmed | Facile separation of lithium fluoride to boost the electrical conductivity of MXene sediment |
| title_short | Facile separation of lithium fluoride to boost the electrical conductivity of MXene sediment |
| title_sort | facile separation of lithium fluoride to boost the electrical conductivity of mxene sediment |
| topic | MXene sediment lithium fluoride printing ink purification |
| url | https://doi.org/10.1088/2053-1591/add240 |
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