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Decomposition Process of Carboxylate MOF HKUST-1 Unveiled at the Atomic Scale Level

Michela Todaro, Gianpiero Buscarino, Luisa Sciortino, Antonino Alessi, Fabrizio Messina, Marco Taddei Orcid Logo, Marco Ranocchiari, Marco Cannas, Franco M. Gelardi

The Journal of Physical Chemistry C, Volume: 120, Issue: 23, Pages: 12879 - 12889

Swansea University Author: Marco Taddei Orcid Logo

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DOI (Published version): 10.1021/acs.jpcc.6b03237

Abstract

HKUST-1 is a metal–organic framework (MOF) which plays a significant role in both applicative and basic fields of research, thanks to its outstanding properties of adsorption and catalysis but also because it is a reference material for the study of many general properties of MOFs. Its metallic grou...

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Published in: The Journal of Physical Chemistry C
ISSN: 1932-7447 1932-7455
Published: American Chemical Society (ACS) 2016
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URI: https://cronfa.swan.ac.uk/Record/cronfa32740
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first_indexed 2017-03-29T13:47:14Z
last_indexed 2018-02-09T05:20:59Z
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spelling 2017-07-07T15:47:43.7490808 v2 32740 2017-03-29 Decomposition Process of Carboxylate MOF HKUST-1 Unveiled at the Atomic Scale Level 5cffd1038508554d8596dee8b4e51052 0000-0003-2805-6375 Marco Taddei Marco Taddei true false 2017-03-29 EEN HKUST-1 is a metal–organic framework (MOF) which plays a significant role in both applicative and basic fields of research, thanks to its outstanding properties of adsorption and catalysis but also because it is a reference material for the study of many general properties of MOFs. Its metallic group comprises a pair of Cu2+ ions chelated by four carboxylate bridges, forming a structure known as paddle-wheel unit, which is the heart of the material. However, previous studies have well established that the paddle-wheel is incline to hydrolysis. In fact, the prolonged exposure of the material to moisture promotes the hydrolysis of Cu–O bonds in the paddle-wheels, so breaking the crystalline network. The main objective of the present experimental investigation is the determination of the details of the structural defects induced by this process in the crystal, and it has been successfully pursued by coupling the electron paramagnetic resonance spectroscopy with other more commonly considered techniques, such as X-ray diffraction, surface area estimation, and scanning electron microscopy. Thanks to this original approach we have recognized three stages of the process of decomposition of HKUST-1, and we have unveiled the details of the corresponding equilibrium structures of the paddle-wheels at the atomic scale level. Journal Article The Journal of Physical Chemistry C 120 23 12879 12889 American Chemical Society (ACS) 1932-7447 1932-7455 16 6 2016 2016-06-16 10.1021/acs.jpcc.6b03237 COLLEGE NANME Engineering COLLEGE CODE EEN Swansea University 2017-07-07T15:47:43.7490808 2017-03-29T09:52:33.8968767 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised Michela Todaro 1 Gianpiero Buscarino 2 Luisa Sciortino 3 Antonino Alessi 4 Fabrizio Messina 5 Marco Taddei 0000-0003-2805-6375 6 Marco Ranocchiari 7 Marco Cannas 8 Franco M. Gelardi 9
title Decomposition Process of Carboxylate MOF HKUST-1 Unveiled at the Atomic Scale Level
spellingShingle Decomposition Process of Carboxylate MOF HKUST-1 Unveiled at the Atomic Scale Level
Marco Taddei
title_short Decomposition Process of Carboxylate MOF HKUST-1 Unveiled at the Atomic Scale Level
title_full Decomposition Process of Carboxylate MOF HKUST-1 Unveiled at the Atomic Scale Level
title_fullStr Decomposition Process of Carboxylate MOF HKUST-1 Unveiled at the Atomic Scale Level
title_full_unstemmed Decomposition Process of Carboxylate MOF HKUST-1 Unveiled at the Atomic Scale Level
title_sort Decomposition Process of Carboxylate MOF HKUST-1 Unveiled at the Atomic Scale Level
author_id_str_mv 5cffd1038508554d8596dee8b4e51052
author_id_fullname_str_mv 5cffd1038508554d8596dee8b4e51052_***_Marco Taddei
author Marco Taddei
author2 Michela Todaro
Gianpiero Buscarino
Luisa Sciortino
Antonino Alessi
Fabrizio Messina
Marco Taddei
Marco Ranocchiari
Marco Cannas
Franco M. Gelardi
format Journal article
container_title The Journal of Physical Chemistry C
container_volume 120
container_issue 23
container_start_page 12879
publishDate 2016
institution Swansea University
issn 1932-7447
1932-7455
doi_str_mv 10.1021/acs.jpcc.6b03237
publisher American Chemical Society (ACS)
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised
document_store_str 0
active_str 0
description HKUST-1 is a metal–organic framework (MOF) which plays a significant role in both applicative and basic fields of research, thanks to its outstanding properties of adsorption and catalysis but also because it is a reference material for the study of many general properties of MOFs. Its metallic group comprises a pair of Cu2+ ions chelated by four carboxylate bridges, forming a structure known as paddle-wheel unit, which is the heart of the material. However, previous studies have well established that the paddle-wheel is incline to hydrolysis. In fact, the prolonged exposure of the material to moisture promotes the hydrolysis of Cu–O bonds in the paddle-wheels, so breaking the crystalline network. The main objective of the present experimental investigation is the determination of the details of the structural defects induced by this process in the crystal, and it has been successfully pursued by coupling the electron paramagnetic resonance spectroscopy with other more commonly considered techniques, such as X-ray diffraction, surface area estimation, and scanning electron microscopy. Thanks to this original approach we have recognized three stages of the process of decomposition of HKUST-1, and we have unveiled the details of the corresponding equilibrium structures of the paddle-wheels at the atomic scale level.
published_date 2016-06-16T03:40:13Z
_version_ 1763751822219018240
score 11.016235

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