التفاصيل البيبلوغرافية
| العنوان: |
The impact of host-guest interactions on the dielectric properties of MFM-300 materials |
| المؤلفون: |
Chen, Xi, Sapchenko, Sergei, Lu, Wanpeng, Li, Ming, He, Meng, Chen, Yinlin, Frogley, Mark D, Silva, Ivan da, Yang, Sihai, Schroder, Martin |
| المصدر: |
Chen , X , Sapchenko , S , Lu , W , Li , M , He , M , Chen , Y , Frogley , M D , Silva , I D , Yang , S & Schroder , M 2023 , ' The impact of host-guest interactions on the dielectric properties of MFM-300 materials ' , Inorganic Chemistry . |
| سنة النشر: |
2023 |
| المجموعة: |
The University of Manchester: Research Explorer - Publications |
| مصطلحات موضوعية: |
MOFs, dielectric constant, host-guest interaction, ammonia, impedance spectroscopy |
| الوصف: |
Metal–organic framework (MOF) materials are attracting increasing interest in the field of electronics due to their structural diversity, intrinsic porosity, and designable host-guest interactions. Here, we report the dielectric properties of a series of robust materials, MFM-300(M) (M = Al, Sc, Cr, Fe, Ga, In) when exposed to different guest molecules. MFM-300(Fe) exhibits the most notable increase in dielectric constant to 35.3± 0.30 at 10 kHz upon adsorption of NH3. Structural analysis suggests that the electron delocalisation induced by host-guest interactions between NH3 and the MOF host, as confirmed by neutron powder diffraction studies, leads to structural polarisation resulting in a high dielectric constant for NH3@MFM-300(Fe). This is further supported by ligand-to-metal charge-transfer transitions observed by solid-state UV/Vis spectroscopy. The high detection sensitivity and stability to NH3 suggests that MFM-300(Fe) may act as a powerful dielectric-based sensor for NH3. |
| نوع الوثيقة: |
article in journal/newspaper |
| اللغة: |
English |
| الاتاحة: |
https://research.manchester.ac.uk/en/publications/eb4f380f-ff01-4d30-9cc8-79e91bbace51 |
| Rights: |
info:eu-repo/semantics/closedAccess |
| رقم الانضمام: |
edsbas.2F6F2578 |
| قاعدة البيانات: |
BASE |