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New water-based fluorescent nanofluid containing 2D titanium carbide MXene sheets: A comparative study of its thermophysical, electrical and optical properties with amine and carboxyl covalently functionalized graphene nanoplatelets

The aqueous colloidal suspension of two-dimensional (2D) sp(2)carbon and carbide materials has promising thermal and electrical properties to be used as a coolant for heat transfer applications. However, the application of graphene nanoplatelets (GNPs) nanofluids is extensively limited by its insuff...

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Main Authors: Rafieerad, M., Rafieerad, A. R., Mehmandoust, Babak, Dhingra, S., Shanbedi, M.
Format: Article
Published: Springer 2021
Subjects:
QD Chemistry
TA Engineering (General). Civil engineering (General)
Online Access:http://eprints.um.edu.my/28060/
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spelling my.um.eprints.280602022-07-20T01:09:04Z http://eprints.um.edu.my/28060/ New water-based fluorescent nanofluid containing 2D titanium carbide MXene sheets: A comparative study of its thermophysical, electrical and optical properties with amine and carboxyl covalently functionalized graphene nanoplatelets Rafieerad, M. Rafieerad, A. R. Mehmandoust, Babak Dhingra, S. Shanbedi, M. QD Chemistry TA Engineering (General). Civil engineering (General) The aqueous colloidal suspension of two-dimensional (2D) sp(2)carbon and carbide materials has promising thermal and electrical properties to be used as a coolant for heat transfer applications. However, the application of graphene nanoplatelets (GNPs) nanofluids is extensively limited by its insufficient dispersibility and stability in the base fluid of water. Therefore, surface modification and post-functionalization of GNPs should be considered as further treatments to enhance their nanofluid properties, which is not economical for large-scale production. In the current study, we presented the processing, thermophysical, electrical and optical properties of a new generation of carbon-based nanofluid containing highly exfoliated autofluorescent hydrophilic 2D titanium carbide MXene (Ti3C2Tx) nanosheets. For the first time, the microstructure and nanofluid properties of the water-based Ti(3)C(2)T(x)at two concentrations of 0.1 and 0.2 mass% have been further compared with covalently and non-covalently functionalized GNPs. Our results showed that the thermal/electrical conductivities of 0.1 and 0.2% MXene are remarkably higher (0.732 and 0.828 W m(1) K-1, 1213 and 2690 mu S cm(1), respectively) compared with non-covalent GNPs at same concentrations (0.679 and 0.702 W m(1) K-1, 723 and 1425 mu S cm(1), respectively) and competitive with COOH- and NH2-mediated GNPs samples. Additionally, the prominent stability and autofluorescence properties of MXene composite are other advantages supporting its nanofluid applications. The fluorescent MXene nanofluid at the different excitation/emission wavelengths (377-586 nm/447-647 nm) conferred a suitable optical contrast for visualization. Taken together, Ti(3)C(2)T(x)material might open up a robust gateway for the application of carbon-based nanofluids in advanced heat transfer systems. Springer 2021-11 Article PeerReviewed Rafieerad, M. and Rafieerad, A. R. and Mehmandoust, Babak and Dhingra, S. and Shanbedi, M. (2021) New water-based fluorescent nanofluid containing 2D titanium carbide MXene sheets: A comparative study of its thermophysical, electrical and optical properties with amine and carboxyl covalently functionalized graphene nanoplatelets. Journal of Thermal Analysis and Calorimetry, 146 (4). pp. 1491-1504. ISSN 1388-6150, DOI https://doi.org/10.1007/s10973-020-10088-0 <https://doi.org/10.1007/s10973-020-10088-0>. 10.1007/s10973-020-10088-0
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic QD Chemistry
TA Engineering (General). Civil engineering (General)
spellingShingle QD Chemistry
TA Engineering (General). Civil engineering (General)
Rafieerad, M.
Rafieerad, A. R.
Mehmandoust, Babak
Dhingra, S.
Shanbedi, M.
New water-based fluorescent nanofluid containing 2D titanium carbide MXene sheets: A comparative study of its thermophysical, electrical and optical properties with amine and carboxyl covalently functionalized graphene nanoplatelets
description The aqueous colloidal suspension of two-dimensional (2D) sp(2)carbon and carbide materials has promising thermal and electrical properties to be used as a coolant for heat transfer applications. However, the application of graphene nanoplatelets (GNPs) nanofluids is extensively limited by its insufficient dispersibility and stability in the base fluid of water. Therefore, surface modification and post-functionalization of GNPs should be considered as further treatments to enhance their nanofluid properties, which is not economical for large-scale production. In the current study, we presented the processing, thermophysical, electrical and optical properties of a new generation of carbon-based nanofluid containing highly exfoliated autofluorescent hydrophilic 2D titanium carbide MXene (Ti3C2Tx) nanosheets. For the first time, the microstructure and nanofluid properties of the water-based Ti(3)C(2)T(x)at two concentrations of 0.1 and 0.2 mass% have been further compared with covalently and non-covalently functionalized GNPs. Our results showed that the thermal/electrical conductivities of 0.1 and 0.2% MXene are remarkably higher (0.732 and 0.828 W m(1) K-1, 1213 and 2690 mu S cm(1), respectively) compared with non-covalent GNPs at same concentrations (0.679 and 0.702 W m(1) K-1, 723 and 1425 mu S cm(1), respectively) and competitive with COOH- and NH2-mediated GNPs samples. Additionally, the prominent stability and autofluorescence properties of MXene composite are other advantages supporting its nanofluid applications. The fluorescent MXene nanofluid at the different excitation/emission wavelengths (377-586 nm/447-647 nm) conferred a suitable optical contrast for visualization. Taken together, Ti(3)C(2)T(x)material might open up a robust gateway for the application of carbon-based nanofluids in advanced heat transfer systems.
format Article
author Rafieerad, M.
Rafieerad, A. R.
Mehmandoust, Babak
Dhingra, S.
Shanbedi, M.
author_facet Rafieerad, M.
Rafieerad, A. R.
Mehmandoust, Babak
Dhingra, S.
Shanbedi, M.
author_sort Rafieerad, M.
title New water-based fluorescent nanofluid containing 2D titanium carbide MXene sheets: A comparative study of its thermophysical, electrical and optical properties with amine and carboxyl covalently functionalized graphene nanoplatelets
title_short New water-based fluorescent nanofluid containing 2D titanium carbide MXene sheets: A comparative study of its thermophysical, electrical and optical properties with amine and carboxyl covalently functionalized graphene nanoplatelets
title_full New water-based fluorescent nanofluid containing 2D titanium carbide MXene sheets: A comparative study of its thermophysical, electrical and optical properties with amine and carboxyl covalently functionalized graphene nanoplatelets
title_fullStr New water-based fluorescent nanofluid containing 2D titanium carbide MXene sheets: A comparative study of its thermophysical, electrical and optical properties with amine and carboxyl covalently functionalized graphene nanoplatelets
title_full_unstemmed New water-based fluorescent nanofluid containing 2D titanium carbide MXene sheets: A comparative study of its thermophysical, electrical and optical properties with amine and carboxyl covalently functionalized graphene nanoplatelets
title_sort new water-based fluorescent nanofluid containing 2d titanium carbide mxene sheets: a comparative study of its thermophysical, electrical and optical properties with amine and carboxyl covalently functionalized graphene nanoplatelets
publisher Springer
publishDate 2021
url http://eprints.um.edu.my/28060/
_version_ 1739828431509520384
score 13.211869

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