The Role of Covalent Functionalization in the Thermal Stability and Decomposition of Hybrid Layered Hydroxides
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The Role of Covalent Functionalization in the Thermal Stability and Decomposition of Hybrid Layered Hydroxides

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The Role of Covalent Functionalization in the Thermal Stability and Decomposition of Hybrid Layered Hydroxides

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dc.contributor.author Oestreicher, Víctor
dc.contributor.author Abellán Sáez, Gonzalo
dc.contributor.author Coronado Miralles, Eugenio
dc.date.accessioned 2021-05-25T16:43:22Z
dc.date.available 2021-05-25T16:43:22Z
dc.date.issued 2020
dc.identifier.uri https://hdl.handle.net/10550/79411
dc.description.abstract The room temperature synthesis of two Co-based hybrid layered hydroxides containing the same organic ligand (suberate [Sub]), one connected through purely electrostatic interactions (CoAl layered double hydroxide [LDH]), and the other covalently functionalized (α-CoII simonkolleite phase) has been carried out. The magnetic properties exhibit an acute difference in the magnetization temperatures (from ≈10 K for the CoAl-LDH to ≈55 K for the α-CoII). Moreover, the role of the covalent functionalization in the thermal stability and the decomposition has been investigated by a forefront characterization tool consisting of thermogravimetric analysis coupled with gas chromatography and mass spectrometry (TG-GC-MS). The LDH exhibits a higher thermal stability of ≈50 ºC with broad mass loss steps, whereas the water molecules interact stronger with the α-CoII(Sub) hybrid, suggesting a higher confinement in the interlayer space. Interestingly, at higher temperatures (>400 ºC), the α-CoII(Sub) gives rise to the selective formation of cycloheptanone, in contrast to the LDH phase leading to different carbonyl containing compounds. These findings offer new fundamental insights into the thermal behavior of hybrid materials based on layered hydroxides, highlighting the important role of covalent functionalization in its properties.
dc.language.iso eng
dc.relation.ispartof Physica Status Solidi-Rapid Research Letters, 2020, vol. 14, num. 12, p. 2000380
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source Oestreicher, Víctor Abellán Sáez, Gonzalo Coronado Miralles, Eugenio 2020 The Role of Covalent Functionalization in the Thermal Stability and Decomposition of Hybrid Layered Hydroxides Physica Status Solidi-Rapid Research Letters 14 12 2000380
dc.subject Materials
dc.subject Materials compostos
dc.subject Cromatografia de gasos
dc.title The Role of Covalent Functionalization in the Thermal Stability and Decomposition of Hybrid Layered Hydroxides
dc.type info:eu-repo/semantics/article
dc.date.updated 2021-05-25T16:43:22Z
dc.identifier.doi https://doi.org/10.1002/pssr.202000380
dc.identifier.idgrec 140664

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