Thermal Analysis of a Metal–Organic Framework ZnxCo<sub>1-X</sub>-ZIF-8 for Recent Applications

Zeolitic imidazolate frameworks (ZIFs) are interesting materials for use in several aspects: energy storage material, gas sensing, and photocatalysis. The thermal stability and pyrolysis process are crucial in determining the active phase of the material. A deep understanding of the pyrolysis mechan...

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Autores principales: Moustafa Ahmed, Yas M Al-Hadeethi, Ahmed Alshahrie, Arwa T Kutbee, Essam R. Shaaban, Ahmed F. Al-Hossainy
Formato: article
Lenguaje:EN
Publicado: MDPI AG 2021
Materias:
TG
DSC
XRD
DFT
Acceso en línea:https://doaj.org/article/ce3412b4d0c341248201e342045f8d93
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spelling oai:doaj.org-article:ce3412b4d0c341248201e342045f8d932021-11-25T18:49:46ZThermal Analysis of a Metal–Organic Framework ZnxCo<sub>1-X</sub>-ZIF-8 for Recent Applications10.3390/polym132240512073-4360https://doaj.org/article/ce3412b4d0c341248201e342045f8d932021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4360/13/22/4051https://doaj.org/toc/2073-4360Zeolitic imidazolate frameworks (ZIFs) are interesting materials for use in several aspects: energy storage material, gas sensing, and photocatalysis. The thermal stability and pyrolysis process are crucial in determining the active phase of the material. A deep understanding of the pyrolysis mechanism is in demand. Therefore, the thermodynamics and combustion process with different heating rates was examined, and the kinetic parameters were computed employing thermogravimetric tests. Based on the TG analysis of combustion, pyrolysis moves to the high-temperature region with an increase in heating rate. The decomposition process can be separated into the dehydration (300–503 K) and the pyrolysis reaction (703–1100 K). Three points of the decomposition process are performed by dynamical analysis owing to shifts of slopes, but the combustion process has only one stage. The Zeolitic imidazolate framework’s structure properties were examined using TDDFT-DFT/DMOl<sup>3</sup> simulation techniques. Dynamical parameters, for instance, the possible mechanism, the pre-exponential factor, and the apparent activation energy are obtained through comparison using the Kissinger formula. The thermodynamics analysis of the Zn<sub>1-x</sub>Co<sub>x</sub>-ZIF-8 materials is an effective way to explore the temperature influence on the process of pyrolysis, which can benefit several environment purifications, photocatalyst, and recent applications.Moustafa AhmedYas M Al-HadeethiAhmed AlshahrieArwa T KutbeeEssam R. ShaabanAhmed F. Al-HossainyMDPI AGarticleZn<sub>x</sub>Co<sub>1-x</sub>-ZIF-8 metal–organic frameworkphotocatalystTGDSCXRDDFTOrganic chemistryQD241-441ENPolymers, Vol 13, Iss 4051, p 4051 (2021)
institution DOAJ
collection DOAJ
language EN
topic Zn<sub>x</sub>Co<sub>1-x</sub>-ZIF-8 metal–organic framework
photocatalyst
TG
DSC
XRD
DFT
Organic chemistry
QD241-441
spellingShingle Zn<sub>x</sub>Co<sub>1-x</sub>-ZIF-8 metal–organic framework
photocatalyst
TG
DSC
XRD
DFT
Organic chemistry
QD241-441
Moustafa Ahmed
Yas M Al-Hadeethi
Ahmed Alshahrie
Arwa T Kutbee
Essam R. Shaaban
Ahmed F. Al-Hossainy
Thermal Analysis of a Metal–Organic Framework ZnxCo<sub>1-X</sub>-ZIF-8 for Recent Applications
description Zeolitic imidazolate frameworks (ZIFs) are interesting materials for use in several aspects: energy storage material, gas sensing, and photocatalysis. The thermal stability and pyrolysis process are crucial in determining the active phase of the material. A deep understanding of the pyrolysis mechanism is in demand. Therefore, the thermodynamics and combustion process with different heating rates was examined, and the kinetic parameters were computed employing thermogravimetric tests. Based on the TG analysis of combustion, pyrolysis moves to the high-temperature region with an increase in heating rate. The decomposition process can be separated into the dehydration (300–503 K) and the pyrolysis reaction (703–1100 K). Three points of the decomposition process are performed by dynamical analysis owing to shifts of slopes, but the combustion process has only one stage. The Zeolitic imidazolate framework’s structure properties were examined using TDDFT-DFT/DMOl<sup>3</sup> simulation techniques. Dynamical parameters, for instance, the possible mechanism, the pre-exponential factor, and the apparent activation energy are obtained through comparison using the Kissinger formula. The thermodynamics analysis of the Zn<sub>1-x</sub>Co<sub>x</sub>-ZIF-8 materials is an effective way to explore the temperature influence on the process of pyrolysis, which can benefit several environment purifications, photocatalyst, and recent applications.
format article
author Moustafa Ahmed
Yas M Al-Hadeethi
Ahmed Alshahrie
Arwa T Kutbee
Essam R. Shaaban
Ahmed F. Al-Hossainy
author_facet Moustafa Ahmed
Yas M Al-Hadeethi
Ahmed Alshahrie
Arwa T Kutbee
Essam R. Shaaban
Ahmed F. Al-Hossainy
author_sort Moustafa Ahmed
title Thermal Analysis of a Metal–Organic Framework ZnxCo<sub>1-X</sub>-ZIF-8 for Recent Applications
title_short Thermal Analysis of a Metal–Organic Framework ZnxCo<sub>1-X</sub>-ZIF-8 for Recent Applications
title_full Thermal Analysis of a Metal–Organic Framework ZnxCo<sub>1-X</sub>-ZIF-8 for Recent Applications
title_fullStr Thermal Analysis of a Metal–Organic Framework ZnxCo<sub>1-X</sub>-ZIF-8 for Recent Applications
title_full_unstemmed Thermal Analysis of a Metal–Organic Framework ZnxCo<sub>1-X</sub>-ZIF-8 for Recent Applications
title_sort thermal analysis of a metal–organic framework znxco<sub>1-x</sub>-zif-8 for recent applications
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/ce3412b4d0c341248201e342045f8d93
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