Ball-milling-induced amorphization of zeolitic imidazolate frameworks (ZIFs) for the irreversible trapping of iodine.
The I2-sorption and -retention properties of several existing zeolitic imidazolate frameworks (ZIF-4, -8, -69) and a novel framework, ZIF-mnIm ([Zn(mnIm)2 ]; mnIm=4-methyl-5-nitroimidazolate), have been characterised using microanalysis, thermogravimetric analysis and X-ray diffraction. The topologi...
| Main Authors: | , , , , |
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| Format: | Journal article |
| Language: | English |
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2013
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| _version_ | 1797083527843414016 |
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| author | Bennett, T Saines, P Keen, D Tan, J Cheetham, A |
| author_facet | Bennett, T Saines, P Keen, D Tan, J Cheetham, A |
| author_sort | Bennett, T |
| collection | OXFORD |
| description | The I2-sorption and -retention properties of several existing zeolitic imidazolate frameworks (ZIF-4, -8, -69) and a novel framework, ZIF-mnIm ([Zn(mnIm)2 ]; mnIm=4-methyl-5-nitroimidazolate), have been characterised using microanalysis, thermogravimetric analysis and X-ray diffraction. The topologically identical ZIF-8 ([Zn(mIm)2]; mIm=2-methylimidazolate) and ZIF-mnIm display similar sorption abilities, though strikingly different guest-retention behaviour upon heating. We discover that this guest retention is greatly enhanced upon facile amorphisation by ball milling, particularly in the case of ZIF-mnIm, for which I2 loss is retarded by as much as 200 °C. It is anticipated that this general approach should be applicable to the wide range of available metal-organic framework-type materials for the permanent storage of harmful guest species. |
| first_indexed | 2024-03-07T01:42:53Z |
| format | Journal article |
| id | oxford-uuid:9775f182-5455-419b-a392-647faf8c4c24 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T01:42:53Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | oxford-uuid:9775f182-5455-419b-a392-647faf8c4c242022-03-26T23:59:42ZBall-milling-induced amorphization of zeolitic imidazolate frameworks (ZIFs) for the irreversible trapping of iodine.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:9775f182-5455-419b-a392-647faf8c4c24EnglishSymplectic Elements at Oxford2013Bennett, TSaines, PKeen, DTan, JCheetham, AThe I2-sorption and -retention properties of several existing zeolitic imidazolate frameworks (ZIF-4, -8, -69) and a novel framework, ZIF-mnIm ([Zn(mnIm)2 ]; mnIm=4-methyl-5-nitroimidazolate), have been characterised using microanalysis, thermogravimetric analysis and X-ray diffraction. The topologically identical ZIF-8 ([Zn(mIm)2]; mIm=2-methylimidazolate) and ZIF-mnIm display similar sorption abilities, though strikingly different guest-retention behaviour upon heating. We discover that this guest retention is greatly enhanced upon facile amorphisation by ball milling, particularly in the case of ZIF-mnIm, for which I2 loss is retarded by as much as 200 °C. It is anticipated that this general approach should be applicable to the wide range of available metal-organic framework-type materials for the permanent storage of harmful guest species. |
| spellingShingle | Bennett, T Saines, P Keen, D Tan, J Cheetham, A Ball-milling-induced amorphization of zeolitic imidazolate frameworks (ZIFs) for the irreversible trapping of iodine. |
| title | Ball-milling-induced amorphization of zeolitic imidazolate frameworks (ZIFs) for the irreversible trapping of iodine. |
| title_full | Ball-milling-induced amorphization of zeolitic imidazolate frameworks (ZIFs) for the irreversible trapping of iodine. |
| title_fullStr | Ball-milling-induced amorphization of zeolitic imidazolate frameworks (ZIFs) for the irreversible trapping of iodine. |
| title_full_unstemmed | Ball-milling-induced amorphization of zeolitic imidazolate frameworks (ZIFs) for the irreversible trapping of iodine. |
| title_short | Ball-milling-induced amorphization of zeolitic imidazolate frameworks (ZIFs) for the irreversible trapping of iodine. |
| title_sort | ball milling induced amorphization of zeolitic imidazolate frameworks zifs for the irreversible trapping of iodine |
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