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Metal–Organic Framework Co-MOF-74-Based Host–Guest Composites for Resistive Gas Sensing
[Image: see text] Increasing demands in the field of sensing, especially for gas detection applications, require new approaches to chemical sensors. Metal–organic frameworks (MOFs) can play a decisive role owing to their outstanding performances regarding gas selectivity and sensitivity. The tetrath...
Autores principales: | , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American
Chemical Society
2019
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6492948/ https://www.ncbi.nlm.nih.gov/pubmed/30900448 http://dx.doi.org/10.1021/acsami.8b22002 |
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author | Strauss, Ina Mundstock, Alexander Treger, Marvin Lange, Karsten Hwang, Seungtaik Chmelik, Christian Rusch, Pascal Bigall, Nadja C. Pichler, Thomas Shiozawa, Hidetsugu Caro, Jürgen |
author_facet | Strauss, Ina Mundstock, Alexander Treger, Marvin Lange, Karsten Hwang, Seungtaik Chmelik, Christian Rusch, Pascal Bigall, Nadja C. Pichler, Thomas Shiozawa, Hidetsugu Caro, Jürgen |
author_sort | Strauss, Ina |
collection | PubMed |
description | [Image: see text] Increasing demands in the field of sensing, especially for gas detection applications, require new approaches to chemical sensors. Metal–organic frameworks (MOFs) can play a decisive role owing to their outstanding performances regarding gas selectivity and sensitivity. The tetrathiafulvalene (TTF)-infiltrated MOF, Co-MOF-74, has been prepared following the host–guest concept and evaluated in resistive gas sensing. The Co-MOF-74-TTF crystal morphology has been characterized via X-ray diffraction and scanning electron microscopy, while the successful incorporation of TTF into the MOF has been validated via X-ray photoemission spectroscopy, thermogravimetric analysis, UV/vis, infrared (IR), and Raman investigations. We demonstrate a reduced yet ample uptake of CO(2) in the pores of the new material by IR imaging and adsorption isotherms. The nanocomposite Co-MOF-74-TTF exhibits an increased electrical conductivity in comparison to Co-MOF-74 which can be influenced by gas adsorption from a surrounding atmosphere. This effect could be used for gas sensing. |
format | Online Article Text |
id | pubmed-6492948 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | American
Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-64929482019-05-02 Metal–Organic Framework Co-MOF-74-Based Host–Guest Composites for Resistive Gas Sensing Strauss, Ina Mundstock, Alexander Treger, Marvin Lange, Karsten Hwang, Seungtaik Chmelik, Christian Rusch, Pascal Bigall, Nadja C. Pichler, Thomas Shiozawa, Hidetsugu Caro, Jürgen ACS Appl Mater Interfaces [Image: see text] Increasing demands in the field of sensing, especially for gas detection applications, require new approaches to chemical sensors. Metal–organic frameworks (MOFs) can play a decisive role owing to their outstanding performances regarding gas selectivity and sensitivity. The tetrathiafulvalene (TTF)-infiltrated MOF, Co-MOF-74, has been prepared following the host–guest concept and evaluated in resistive gas sensing. The Co-MOF-74-TTF crystal morphology has been characterized via X-ray diffraction and scanning electron microscopy, while the successful incorporation of TTF into the MOF has been validated via X-ray photoemission spectroscopy, thermogravimetric analysis, UV/vis, infrared (IR), and Raman investigations. We demonstrate a reduced yet ample uptake of CO(2) in the pores of the new material by IR imaging and adsorption isotherms. The nanocomposite Co-MOF-74-TTF exhibits an increased electrical conductivity in comparison to Co-MOF-74 which can be influenced by gas adsorption from a surrounding atmosphere. This effect could be used for gas sensing. American Chemical Society 2019-03-22 2019-04-17 /pmc/articles/PMC6492948/ /pubmed/30900448 http://dx.doi.org/10.1021/acsami.8b22002 Text en Copyright © 2019 American Chemical Society This is an open access article published under a Creative Commons Attribution (CC-BY) License (http://pubs.acs.org/page/policy/authorchoice_ccby_termsofuse.html) , which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited. |
spellingShingle | Strauss, Ina Mundstock, Alexander Treger, Marvin Lange, Karsten Hwang, Seungtaik Chmelik, Christian Rusch, Pascal Bigall, Nadja C. Pichler, Thomas Shiozawa, Hidetsugu Caro, Jürgen Metal–Organic Framework Co-MOF-74-Based Host–Guest Composites for Resistive Gas Sensing |
title | Metal–Organic
Framework Co-MOF-74-Based Host–Guest
Composites for Resistive Gas Sensing |
title_full | Metal–Organic
Framework Co-MOF-74-Based Host–Guest
Composites for Resistive Gas Sensing |
title_fullStr | Metal–Organic
Framework Co-MOF-74-Based Host–Guest
Composites for Resistive Gas Sensing |
title_full_unstemmed | Metal–Organic
Framework Co-MOF-74-Based Host–Guest
Composites for Resistive Gas Sensing |
title_short | Metal–Organic
Framework Co-MOF-74-Based Host–Guest
Composites for Resistive Gas Sensing |
title_sort | metal–organic
framework co-mof-74-based host–guest
composites for resistive gas sensing |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6492948/ https://www.ncbi.nlm.nih.gov/pubmed/30900448 http://dx.doi.org/10.1021/acsami.8b22002 |
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