Investigation by Raman Spectroscopy of the Decomposition Process of HKUST-1 upon Exposure to Air
We report an experimental investigation by Raman spectroscopy of the decomposition process of Metal-Organic Framework (MOF) HKUST-1 upon exposure to air moisture (T=300 K, 70% relative humidity). The data collected here are compared with the indications obtained from a model of the process of decomp...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | Journal of Spectroscopy |
| Online Access: | http://dx.doi.org/10.1155/2016/8074297 |
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| _version_ | 1832545266311364608 |
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| author | Michela Todaro Antonino Alessi Luisa Sciortino Simonpietro Agnello Marco Cannas Franco Mario Gelardi Gianpiero Buscarino |
| author_facet | Michela Todaro Antonino Alessi Luisa Sciortino Simonpietro Agnello Marco Cannas Franco Mario Gelardi Gianpiero Buscarino |
| author_sort | Michela Todaro |
| collection | DOAJ |
| description | We report an experimental investigation by Raman spectroscopy of the decomposition process of Metal-Organic Framework (MOF) HKUST-1 upon exposure to air moisture (T=300 K, 70% relative humidity). The data collected here are compared with the indications obtained from a model of the process of decomposition of this material proposed in literature. In agreement with that model, the reported Raman measurements indicate that for exposure times longer than 20 days relevant irreversible processes take place, which are related to the occurrence of the hydrolysis of Cu-O bonds. These processes induce small but detectable variations of the peak positions and intensities of the main Raman bands of the material, which can be related to Cu-Cu, Cu-O, and O-C-O stretching modes. The critical analyses of these changes have permitted us to obtain a more detailed description of the process of decomposition taking place in HKUST-1 upon interaction with moisture. Furthermore, the reported Raman data give further strong support to the recently proposed model of decomposition of HKUST-1, contributing significantly to the development of a complete picture of the properties of this considerable deleterious effect. |
| format | Article |
| id | doaj-art-d3380e5ebd014c1c836536d6a1ad2a74 |
| institution | Kabale University |
| issn | 2314-4920 2314-4939 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Spectroscopy |
| spelling | doaj-art-d3380e5ebd014c1c836536d6a1ad2a742025-02-03T07:26:19ZengWileyJournal of Spectroscopy2314-49202314-49392016-01-01201610.1155/2016/80742978074297Investigation by Raman Spectroscopy of the Decomposition Process of HKUST-1 upon Exposure to AirMichela Todaro0Antonino Alessi1Luisa Sciortino2Simonpietro Agnello3Marco Cannas4Franco Mario Gelardi5Gianpiero Buscarino6Dipartimento di Fisica e Chimica, Università di Palermo, 90123 Palermo, ItalyDipartimento di Fisica e Chimica, Università di Palermo, 90123 Palermo, ItalyDipartimento di Fisica e Chimica, Università di Palermo, 90123 Palermo, ItalyDipartimento di Fisica e Chimica, Università di Palermo, 90123 Palermo, ItalyDipartimento di Fisica e Chimica, Università di Palermo, 90123 Palermo, ItalyDipartimento di Fisica e Chimica, Università di Palermo, 90123 Palermo, ItalyDipartimento di Fisica e Chimica, Università di Palermo, 90123 Palermo, ItalyWe report an experimental investigation by Raman spectroscopy of the decomposition process of Metal-Organic Framework (MOF) HKUST-1 upon exposure to air moisture (T=300 K, 70% relative humidity). The data collected here are compared with the indications obtained from a model of the process of decomposition of this material proposed in literature. In agreement with that model, the reported Raman measurements indicate that for exposure times longer than 20 days relevant irreversible processes take place, which are related to the occurrence of the hydrolysis of Cu-O bonds. These processes induce small but detectable variations of the peak positions and intensities of the main Raman bands of the material, which can be related to Cu-Cu, Cu-O, and O-C-O stretching modes. The critical analyses of these changes have permitted us to obtain a more detailed description of the process of decomposition taking place in HKUST-1 upon interaction with moisture. Furthermore, the reported Raman data give further strong support to the recently proposed model of decomposition of HKUST-1, contributing significantly to the development of a complete picture of the properties of this considerable deleterious effect.http://dx.doi.org/10.1155/2016/8074297 |
| spellingShingle | Michela Todaro Antonino Alessi Luisa Sciortino Simonpietro Agnello Marco Cannas Franco Mario Gelardi Gianpiero Buscarino Investigation by Raman Spectroscopy of the Decomposition Process of HKUST-1 upon Exposure to Air Journal of Spectroscopy |
| title | Investigation by Raman Spectroscopy of the Decomposition Process of HKUST-1 upon Exposure to Air |
| title_full | Investigation by Raman Spectroscopy of the Decomposition Process of HKUST-1 upon Exposure to Air |
| title_fullStr | Investigation by Raman Spectroscopy of the Decomposition Process of HKUST-1 upon Exposure to Air |
| title_full_unstemmed | Investigation by Raman Spectroscopy of the Decomposition Process of HKUST-1 upon Exposure to Air |
| title_short | Investigation by Raman Spectroscopy of the Decomposition Process of HKUST-1 upon Exposure to Air |
| title_sort | investigation by raman spectroscopy of the decomposition process of hkust 1 upon exposure to air |
| url | http://dx.doi.org/10.1155/2016/8074297 |
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