| Autor: |
Wen-Long Xue, Guo-Qiang Li, Hui Chen, Yu-Chen Han, Li Feng, Lu Wang, Xiao-Ling Gu, Si-Yuan Hu, Yu-Heng Deng, Lei Tan, Martin T. Dove, Wei Li, Jiangwei Zhang, Hongliang Dong, Zhiqiang Chen, Wei-Hua Deng, Gang Xu, Guo Wang, Chong-Qing Wan |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
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| Zdroj: |
Nature Communications, Vol 15, Iss 1, Pp 1-13 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2041-1723 |
| DOI: |
10.1038/s41467-024-46311-x |
| Popis: |
Abstract Metal-organic framework (MOF) glasses are an emerging class of glasses which complement traditional inorganic, organic and metallic counterparts due to their hybrid nature. Although a few zeolitic imidazolate frameworks have been made into glasses, how to melt and quench the largest subclass of MOFs, metal carboxylate frameworks, into glasses remains challenging. Here, we develop a strategy by grafting the zwitterions on the carboxylate ligands and incorporating organic acids in the framework channels to enable the glass formation. The charge delocalization of zwitterion-acid subsystem and the densely filled channels facilitate the coordination bonding mismatch and thus reduce the melting temperature. Following melt-quenching realizes the glass formation of a family of carboxylate MOFs (UiO-67, UiO-68 and DUT-5), which are usually believed to be un-meltable. Our work opens up an avenue for melt-quenching porous molecular solids into glasses. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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