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Costa T, Sanchez-Vicente Y, Yang Z, Stevens LA, Dias FDS, Costa Pereira SC. Thermophysical properties of tetrabutylammonium chloride, paraffin and fatty acids for thermal energy applications. RSC Adv 2024; 14:26246-26258. [PMID: 39161432 PMCID: PMC11332589 DOI: 10.1039/d4ra03782k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2024] [Accepted: 08/09/2024] [Indexed: 08/21/2024] Open
Abstract
Investigating the thermophysical properties of substances is crucial for using them as phase change materials (PCMs) and heat transfer fluids (HTFs) in thermal energy applications. In this study, the thermophysical properties of three medium-temperature PCMs (around 338 K) and one ionic liquid, tetrabutylammonium chloride ([N4444 +][Cl-]), were evaluated and compared. The commercial PCMs were two fatty acids (OM65 and stearic acid) and one paraffin (RT64HC). The characterised thermophysical properties were the viscosity, density, phase change temperatures, melting and solidification enthalpies, and thermal conductivity for the solid and liquid phases. The uncertainties for each property were calculated, and two empirical equations were obtained from the correlation of viscosity and thermal conductivity data along isotherms. This paper also compared the thermophysical properties of commercial PCMs and HTFs against the ionic liquid, discussing the potential use of the ionic liquid as a thermal energy storage material and HTFs.
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Affiliation(s)
- Tomás Costa
- Department of Mechanical and Construction Engineering, Northumbria University Newcastle Upon Tyne NE1 8ST UK
| | - Yolanda Sanchez-Vicente
- Department of Mechanical and Construction Engineering, Northumbria University Newcastle Upon Tyne NE1 8ST UK
| | - Zili Yang
- Department of Mechanical and Construction Engineering, Northumbria University Newcastle Upon Tyne NE1 8ST UK
| | - Lee A Stevens
- University of Nottingham, Low Carbon Energy and Resources Technologies Group, Faculty of Engineering Energy Technologies Building, Triumph Road Nottingham NG7 2TU UK
| | - Fabio de S Dias
- Universidade Federal da Bahia, Instituto de Química, Departamento de Química Analítica 40170-280 Salvador Bahia Brazil
| | - Sol-Carolina Costa Pereira
- Department of Mechanical and Construction Engineering, Northumbria University Newcastle Upon Tyne NE1 8ST UK
- School of Computing, Engineering & the Built Environment, Edinburgh Napier University EH10 5DT UK
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2
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Dzida M, Boncel S, Jóźwiak B, Greer HF, Dulski M, Scheller Ł, Golba A, Flamholc R, Dzido G, Dziadosz J, Kolanowska A, Jędrysiak R, Blacha A, Cwynar K, Zorębski E, Bernardes CE, Lourenço MJ, Nieto de Castro CA. High-Performance Ionanofluids from Subzipped Carbon Nanotube Networks. ACS APPLIED MATERIALS & INTERFACES 2022; 14:50836-50848. [PMID: 36331877 PMCID: PMC9673059 DOI: 10.1021/acsami.2c14057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 10/19/2022] [Indexed: 06/16/2023]
Abstract
Investments in the transfer and storage of thermal energy along with renewable energy sources strengthen health and economic infrastructure. These factors intensify energy diversification and the more rapid post-COVID recovery of economies. Ionanofluids (INFs) composed of long multiwalled carbon nanotubes (MWCNTs) rich in sp2-hybridized atoms and ionic liquids (ILs) display excellent thermal conductivity enhancement with respect to the pure IL, high thermal stability, and attractive rheology. However, the influence of the morphology, physicochemistry of nanoparticles and the IL-nanostructure interactions on the mechanism of heat transfer and rheological properties of INFs remain unidentified. Here, we show that intertube nanolayer coalescence, supported by 1D geometry assembly, leads to the subzipping of MWCNT bundles and formation of thermal bridges toward 3D networks in the whole INF volume. We identified stable networks of straight and bent MWCNTs separated by a layer of ions at the junctions. We found that the interactions between the ultrasonication-induced breaking nanotubes and the cations were covalent in nature. Furthermore, we found that the ionic layer imposed by close MWCNT surfaces favored enrichment of the cis conformer of the bis(trifluoromethylsulfonyl)imide anion. Our results demonstrate how the molecular perfection of the MWCNT structure with its supramolecular arrangement affects the extraordinary thermal conductivity enhancement of INFs. Thus, we gave the realistic description of the interactions at the IL-CNT interface with its (super)structure and chemistry as well as the molecular structure of the continuous phase. We anticipate our results to be a starting point for more complex studies on the supramolecular zipping mechanism. For example, ionically functionalized MWCNTs toward polyionic systems─of projected and controlled nanolayers─could enable the design of even more efficient heat-transfer fluids and miniaturization of flexible electronics.
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Affiliation(s)
- Marzena Dzida
- Institute
of Chemistry, University of Silesia in Katowice, Szkolna 9, Katowice 40-006, Poland
| | - Sławomir Boncel
- Department
of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Silesian University of Technology, Bolesława Krzywoustego 4, Gliwice 44-100, Poland
- Centre
for Organic and Nanohybrid Electronics, Silesian University of Technology, Konarskiego 22B, Gliwice 44-100, Poland
| | - Bertrand Jóźwiak
- Department
of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Silesian University of Technology, Bolesława Krzywoustego 4, Gliwice 44-100, Poland
- Department
of Chemical Engineering and Process Design, Silesian University of Technology, Marcina Strzody 7, 44-100 Gliwice, Poland
| | - Heather F. Greer
- Department
of Chemistry, University of Cambridge, Cambridge CB2 1EW, U.K.
| | - Mateusz Dulski
- Faculty of
Science and Technology, Institute of Materials Science, University of Silesia in Katowice, 75 Pułku Piechoty 1a, Chorzów 41-500, Poland
| | - Łukasz Scheller
- Institute
of Chemistry, University of Silesia in Katowice, Szkolna 9, Katowice 40-006, Poland
| | - Adrian Golba
- Institute
of Chemistry, University of Silesia in Katowice, Szkolna 9, Katowice 40-006, Poland
| | | | - Grzegorz Dzido
- Department
of Chemical Engineering and Process Design, Silesian University of Technology, Marcina Strzody 7, 44-100 Gliwice, Poland
| | - Justyna Dziadosz
- Institute
of Chemistry, University of Silesia in Katowice, Szkolna 9, Katowice 40-006, Poland
| | - Anna Kolanowska
- Department
of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Silesian University of Technology, Bolesława Krzywoustego 4, Gliwice 44-100, Poland
- Department
of Physical Chemistry and Technology of Polymers, Silesian University of Technology, Marcina Strzody 9, Gliwice 44-100, Poland
| | - Rafał Jędrysiak
- Department
of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Silesian University of Technology, Bolesława Krzywoustego 4, Gliwice 44-100, Poland
- Centre
for Organic and Nanohybrid Electronics, Silesian University of Technology, Konarskiego 22B, Gliwice 44-100, Poland
| | - Anna Blacha
- Department
of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Silesian University of Technology, Bolesława Krzywoustego 4, Gliwice 44-100, Poland
- Centre
for Organic and Nanohybrid Electronics, Silesian University of Technology, Konarskiego 22B, Gliwice 44-100, Poland
| | - Krzysztof Cwynar
- Institute
of Chemistry, University of Silesia in Katowice, Szkolna 9, Katowice 40-006, Poland
| | - Edward Zorębski
- Institute
of Chemistry, University of Silesia in Katowice, Szkolna 9, Katowice 40-006, Poland
| | - Carlos E.S. Bernardes
- Centro
de Química Estrutural, Institute of Molecular Sciences, Departamento
de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, Lisboa 1749-016, Portugal
| | - Maria José
V. Lourenço
- Centro
de Química Estrutural, Institute of Molecular Sciences, Departamento
de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, Lisboa 1749-016, Portugal
| | - Carlos A. Nieto de Castro
- Centro
de Química Estrutural, Institute of Molecular Sciences, Departamento
de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, Lisboa 1749-016, Portugal
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3
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Anggraini Y, Yusuf A, Wonorahardjo S, Kurnia D, Viridi S, Magdalena Sutjahja I. Role of C2 Methylation and Anion Type on the Physicochemical and Thermal Properties of Imidazolium-Based Ionic Liquids. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.103963] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
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4
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Cavieres J, José Inestrosa-Izurieta M, Vasco DA, Urzúa JI. Ionanofluids based on ionic liquid mixtures, a new approach as an alternative material for solar energy storage. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.118677] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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5
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Parmar NS, Bendová M, Wagner Z, Jacquemin J. Study of change in heat capacity of carbon nanotubes based ionanofluid prepared from a series of imidazolium ionic liquids. Phys Chem Chem Phys 2022; 24:22181-22190. [DOI: 10.1039/d2cp02110b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ionanofluids (INFs), nanoparticles dispersed into a base fluid, e.g. an ionic liquid, are a novel class of an alternative heat transfer fluids. An addition of nanoparticles into base ionic liquid...
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6
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Qureshi MI, Qureshi B. Probing the Use of Silane-Grafted Fumed Silica Nanoparticles to Produce Stable Transformer Oil-Based Nanofluids. MATERIALS 2021; 14:ma14247649. [PMID: 34947243 PMCID: PMC8703595 DOI: 10.3390/ma14247649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 12/06/2021] [Accepted: 12/10/2021] [Indexed: 12/05/2022]
Abstract
In this experimental investigation, hydrophobic silane-grafted fumed nano-silica was employed in transformer oil to formulate nanofluids (NFs). A cold-air atmosphere-pressure plasma reactor working on the principle of dielectric barrier discharge was designed and utilized to functionalize the surface of these nanoparticles. A field emission scanning electron microscope (FE-SEM) coupled with energy-dispersive X-ray (EDX) module and Fourier transform infrared (FTIR) spectroscopy were used to scan surface features of new and plasma-treated nanoparticles. The study revealed considerable changes in the surface chemistry of nanoparticles, which led to good dispersibility and stability of nanofluids. The measurements of AC breakdown voltages (AC-BDV) of nanofluids so prepared were conducted according to IEC-Std 60156, and a significant improvement in the dielectric strength was achieved. A statistical analysis of these results was performed using Weibull probabilistic law. At a 5% probability of failure, modified nanofluid remarkably exhibited a 60% increase in breakdown voltage. The dielectric properties such as variation of εr and tan δ in temperature of up to 70 °C were measured and compared with untreated fluid. Results exhibit an increase in tan δ and a slight decrease in permittivity of nanofluids. The analysis also revealed that while unpolar silane coating of NPs increased the breakdown strength, the polar-amino-silane-coated NPs in oil resulted in a drastic reduction. Details of this antagonistic trend are elaborated in this paper.
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Affiliation(s)
- Muhammad I. Qureshi
- Department of Electrical Engineering, Lahore University of Management Sciences, Lahore 54792, Pakistan;
| | - Basit Qureshi
- Department of Computer Science, Prince Sultan University, Riyadh 11586, Saudi Arabia
- Correspondence:
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7
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Grasser MA, Pietsch T, Blasius J, Hollóczki O, Brunner E, Doert T, Ruck M. Coexistence of Tellurium Cations and Anions in Phosphonium-Based Ionic Liquids. Chemistry 2021; 28:e202103770. [PMID: 34890100 PMCID: PMC9304316 DOI: 10.1002/chem.202103770] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Indexed: 11/08/2022]
Abstract
Elemental tellurium readily dissolves in ionic liquids (ILs) based on tetraalkylphosphonium cations even at temperatures below 100 °C. In the case of ILs with acetate, decanoate, or dicyanamide anions, dark red to purple colored solutions form. A study combining NMR, UV‐Vis and Raman spectroscopy revealed the formation of tellurium anions (Ten)2− with chain lengths up to at least n=5, which are in dynamic equilibrium with each other. Since external influences could be excluded and no evidence of an ionic liquid reaction was found, disproportionation of the tellurium is the only possible dissolution mechanism. Although the spectroscopic detection of tellurium cations in these solutions is difficult, the coexistence of tellurium cations, such as (Te4)2+ and (Te6)4+, and tellurium anions could be proven by cyclic voltammetry and electrodeposition experiments. DFT calculations indicate that electrostatic interactions with the ions of the ILs are sufficient to stabilize both types of tellurium ions in solution.
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Affiliation(s)
- Matthias A Grasser
- Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01062, Dresden, Germany
| | - Tobias Pietsch
- Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01062, Dresden, Germany
| | - Jan Blasius
- Mulliken Center for Theoretical Chemistry, Institute for Physical and Theoretical Chemistry, University of Bonn, Beringstr. 4+6, 53115, Bonn, Germany
| | - Oldamur Hollóczki
- Mulliken Center for Theoretical Chemistry, Institute for Physical and Theoretical Chemistry, University of Bonn, Beringstr. 4+6, 53115, Bonn, Germany.,Department of Physical Chemistry, University of Debrecen, Egyetem tér 1, H-4032, Debrecen, Hungary
| | - Eike Brunner
- Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01062, Dresden, Germany
| | - Thomas Doert
- Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01062, Dresden, Germany
| | - Michael Ruck
- Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01062, Dresden, Germany.,Max Planck Institute for Chemical Physics of Solids, Nöthnitzer Str. 40, 01187, Dresden, Germany
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8
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Development of artificial neural network model for predicting dynamic viscosity and specific heat of MWCNT nanoparticle-enhanced ionic liquids with different [HMIM]-cation base agents. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117356] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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9
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Jóźwiak B, Greer HF, Dzido G, Kolanowska A, Jędrysiak R, Dziadosz J, Dzida M, Boncel S. Effect of ultrasonication time on microstructure, thermal conductivity, and viscosity of ionanofluids with originally ultra-long multi-walled carbon nanotubes. ULTRASONICS SONOCHEMISTRY 2021; 77:105681. [PMID: 34340121 PMCID: PMC8346682 DOI: 10.1016/j.ultsonch.2021.105681] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 07/19/2021] [Accepted: 07/19/2021] [Indexed: 06/13/2023]
Abstract
The stability along with thermal and rheological characteristics of ionanofluids (INFs) profoundly depend on the protocol of preparation. Therefore, in this work, the effect of ultrasonication time on microstructure, thermal conductivity, and viscosity of INFs containing 0.2 wt% of originally ultra-long multi-walled carbon nanotubes (MWCNTs) and four different ILs, namely 1-propyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide, 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide, 1-ethyl-3-methylimidazolium thiocyanate, or 1-ethyl-3-methylimidazolium tricyanomethanide, was studied. The INFs were obtained by a two-step method using an ultrasonic probe. The ultrasonication process was performed for 1, 3, 10, or 30 min at a constant nominal power value of 200 W. The obtained results showed that for the shortest sonication time, the highest thermal conductivity enhancement of 12% was obtained. The extended sonication time from 1 to 30 min caused the cutting of MWCNTs and breaking the nanoparticle clusters, leading to a decrease in the average length of the nanotube bundles by approx. 70%. This resulted in a decline in thermal conductivity even by 7.2% and small deviations from the Newtonian behavior of INFs.
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Affiliation(s)
- Bertrand Jóźwiak
- Silesian University of Technology, Department of Organic Chemistry, Bioorganic, Chemistry and Biotechnology, Bolesława Krzywoustego 4, 44-100 Gliwice, Poland.
| | - Heather F Greer
- University of Cambridge, Department of Chemistry, Cambridge CB2 1EW, UK
| | - Grzegorz Dzido
- Silesian University of Technology, Department of Chemical Engineering and Process Design, Marcina Strzody 7, 44-100 Gliwice, Poland
| | - Anna Kolanowska
- Silesian University of Technology, Department of Organic Chemistry, Bioorganic, Chemistry and Biotechnology, Bolesława Krzywoustego 4, 44-100 Gliwice, Poland
| | - Rafał Jędrysiak
- Silesian University of Technology, Department of Organic Chemistry, Bioorganic, Chemistry and Biotechnology, Bolesława Krzywoustego 4, 44-100 Gliwice, Poland
| | - Justyna Dziadosz
- University of Silesia in Katowice, Institute of Chemistry, Szkolna 9, 40-006 Katowice, Poland
| | - Marzena Dzida
- University of Silesia in Katowice, Institute of Chemistry, Szkolna 9, 40-006 Katowice, Poland.
| | - Sławomir Boncel
- Silesian University of Technology, Department of Organic Chemistry, Bioorganic, Chemistry and Biotechnology, Bolesława Krzywoustego 4, 44-100 Gliwice, Poland.
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10
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Faizan M, Ahmed R, Ali HM. A critical review on thermophysical and electrochemical properties of Ionanofluids (nanoparticles dispersed in ionic liquids) and their applications. J Taiwan Inst Chem Eng 2021. [DOI: 10.1016/j.jtice.2021.02.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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11
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Parmar N, Bendová M, Wagner Z, Pěnkavová V, Douihri I, Jacquemin J. Carbon Nanotube-Based Ionanofluids for Efficient Energy Storage: Thermophysical Properties’ Determination and Advanced Data Analysis. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.0c06008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Nirmal Parmar
- Department of Chemistry and Physics of Aerosols, Institute of Chemical Process Fundamentals of the CAS, v.v.i., Rozvojová 135/1, 16502 Prague 6, Czech Republic
| | - Magdalena Bendová
- Department of Chemistry and Physics of Aerosols, Institute of Chemical Process Fundamentals of the CAS, v.v.i., Rozvojová 135/1, 16502 Prague 6, Czech Republic
| | - Zdeněk Wagner
- Department of Chemistry and Physics of Aerosols, Institute of Chemical Process Fundamentals of the CAS, v.v.i., Rozvojová 135/1, 16502 Prague 6, Czech Republic
| | - Věra Pěnkavová
- Department of Multiphase Reactors, Institute of Chemical Process Fundamentals of the CAS, v.v.i., Rozvojová 135/1, 16502 Prague 6, Czech Republic
| | - Ilias Douihri
- Laboratoire de Physico-Chimie des Matériaux et des Electrolytes pour l’Energie (EA 6299), Faculté des Sciences et Techniques, Universite de Tours, parc de Grandmont, 37200 Tours, France
| | - Johan Jacquemin
- Laboratoire de Physico-Chimie des Matériaux et des Electrolytes pour l’Energie (EA 6299), Faculté des Sciences et Techniques, Universite de Tours, parc de Grandmont, 37200 Tours, France
- Materials Science and Nano-Engineering, Mohammed VI Polytechnic University, Lot 660-Hay Moulay Rachid, 43150 Ben Guerir, Morocco
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12
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Bakthavatchalam B, Habib K, Saidur R, Aslfattahi N, Yahya SM, Rashedi A, Khanam T. Optimization of Thermophysical and Rheological Properties of Mxene Ionanofluids for Hybrid Solar Photovoltaic/Thermal Systems. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:320. [PMID: 33513770 PMCID: PMC7912670 DOI: 10.3390/nano11020320] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Revised: 01/22/2021] [Accepted: 01/25/2021] [Indexed: 11/16/2022]
Abstract
Since technology progresses, the need to optimize the thermal system's heat transfer efficiency is continuously confronted by researchers. A primary constraint in the production of heat transfer fluids needed for ultra-high performance was its intrinsic poor heat transfer properties. MXene, a novel 2D nanoparticle possessing fascinating properties has emerged recently as a potential heat dissipative solute in nanofluids. In this research, 2D MXenes (Ti3C2) are synthesized via chemical etching and blended with a binary solution containing Diethylene Glycol (DEG) and ionic liquid (IL) to formulate stable nanofluids at concentrations of 0.1, 0.2, 0.3 and 0.4 wt%. Furthermore, the effect of different temperatures on the studied liquid's thermophysical characteristics such as thermal conductivity, density, viscosity, specific heat capacity, thermal stability and the rheological property was experimentally conducted. A computational analysis was performed to evaluate the impact of ionic liquid-based 2D MXene nanofluid (Ti3C2/DEG+IL) in hybrid photovoltaic/thermal (PV/T) systems. A 3D numerical model is developed to evaluate the thermal efficiency, electrical efficiency, heat transfer coefficient, pumping power and temperature distribution. The simulations proved that the studied working fluid in the PV/T system results in an enhancement of thermal efficiency, electrical efficiency and heat transfer coefficient by 78.5%, 18.7% and 6%, respectively.
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Affiliation(s)
- Balaji Bakthavatchalam
- Department of Mechanical Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar 32610, Malaysia;
| | - Khairul Habib
- Department of Mechanical Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar 32610, Malaysia;
| | - R. Saidur
- Research Centre for Nano-Materials and Energy Technology (RCNMET), School of Science and Technology, Sunway University, Malaysia;
- Department of Engineering, Lancaster University, Lancaster LA1 4YW, UK
| | - Navid Aslfattahi
- Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia;
| | - Syed Mohd Yahya
- Sustainable Energy and Acoustics Research Lab, Mechanical Engineering Department, Aligarh Muslim University, Aligarh 202002, India;
| | - A. Rashedi
- College of Engineering, IT & Environment, Charles Darwin University, Ellengowan Drive, Casuarina, NT 0810, Australia;
| | - Taslima Khanam
- College of Engineering, IT & Environment, Charles Darwin University, Ellengowan Drive, Casuarina, NT 0810, Australia;
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13
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Thermophysical Properties of IoNanofluids Composed of 1-ethyl-3-methylimidazolium Thiocyanate and Carboxyl-functionalized Long Multi-walled Carbon Nanotubes. FLUIDS 2020. [DOI: 10.3390/fluids5040214] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The concept of IoNanofluids (INFs) as the stable dispersions of nanoparticles in ionic liquids was proposed in 2009 by Nieto de Castro’s group. INFs characterize exciting properties such as improved thermal conductivity, non-volatility, and non-flammability. This work is a continuation of our studies on the morphology and physicochemistry of carbon-based nanomaterials affecting thermal conductivity, viscosity, and density of INFs. We focus on the characterization of dispersions composed of long carboxylic group-functionalized multi-walled carbon nanotubes and 1-ethyl-3-methylimidazolium thiocyanate. The thermal conductivity of INFs was measured using KD2 Pro Thermal Properties Analyzer (Decagon Devices Inc., Pullman, WA, USA). The viscosity was investigated using rotary viscometer LV DV-II+Pro (Brookfield Engineering, Middleboro, MA, USA). The density of INFs was measured using a vibrating tube densimeter Anton Paar DMA 5000 (Graz, Austria). The maximum thermal conductivity enhancement of 22% was observed for INF composed of 1 wt% long carboxylic group-functionalized multi-walled carbon nanotubes.
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14
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Abstract
Since their conception, ionic liquids (ILs) have been investigated for an extensive range of applications including in solvent chemistry, catalysis, and electrochemistry. This is due to their designation as designer solvents, whereby the physiochemical properties of an IL can be tuned for specific applications. This has led to significant research activity both by academia and industry from the 1990s, accelerating research in many fields and leading to the filing of numerous patents. However, while ILs have received great interest in the patent literature, only a limited number of processes are known to have been commercialised. This review aims to provide a perspective on the successful commercialisation of IL-based processes, to date, and the advantages and disadvantages associated with the use of ILs in industry.
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15
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Jóźwiak B, Dzido G, Zorȩbski E, Kolanowska A, Jȩdrysiak R, Dziadosz J, Libera M, Boncel S, Dzida M. Remarkable Thermal Conductivity Enhancement in Carbon-Based Ionanofluids: Effect of Nanoparticle Morphology. ACS APPLIED MATERIALS & INTERFACES 2020; 12:38113-38123. [PMID: 32649171 PMCID: PMC7458364 DOI: 10.1021/acsami.0c09752] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 07/10/2020] [Indexed: 06/11/2023]
Abstract
Transfer of the excellent intrinsic properties of individual carbon nanoparticles into real-life applications of the corresponding heat transfer fluids remains challenging. This process requires identification and quantification of the nanoparticle-liquid interface. Here, for the first time, we have determined geometry and properties of this interface by applying transmission electron cryomicroscopy (cryo-TEM). We have systematically investigated how the particle morphology of carbon-based nanomaterials affected the thermal conductivity, specific isobaric heat capacity, thermal diffusivity, density, and viscosity of ionanofluids and/or bucky gels, using a wide range of fillers, especially single-walled carbon nanotubes (SWCNTs) and multiwalled carbon nanotubes (MWCNTs), both with extreme values of aspect ratio (length to diameter ratio) from 150 to 11 000. Accordingly, hybrid systems composed of various carbon nanomaterials and ionic liquid, namely 1-ethyl-3-methylimidazolium thiocyanate [EMIM][SCN], were prepared and characterized. Most of the analyzed nanodispersions exhibited long-term stability even without any surfactant. Our study revealed that the thermal conductivity could be remarkably improved to the maximum values of 43.9% and 67.8% for ionanofluid and bucky gel (at 1 wt % loadings of MWCNTs and SWCNTs), respectively, compared to the pristine ionic liquid. As a result, the model proposed by Murshed and co-workers has been improved for realistic description of the concentration-dependent thermal conductivity of such hybrid systems. The obtained results undoubtedly indicate the potential of ionanofluids and bucky gels for energy management.
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Affiliation(s)
- Bertrand Jóźwiak
- Silesian University
of Technology, Department of Organic Chemistry, Bioorganic Chemistry
and Biotechnology, Bolesława Krzywoustego 4, 44-100 Gliwice, Poland
| | - Grzegorz Dzido
- Silesian University
of Technology, Department of Chemical Engineering
and Process Design, Marcina
Strzody 7, 44-100, Gliwice, Poland
| | - Edward Zorȩbski
- University of Silesia in
Katowice, Institute of Chemistry, Szkolna 9, 40-006 Katowice, Poland
| | - Anna Kolanowska
- Silesian University
of Technology, Department of Organic Chemistry, Bioorganic Chemistry
and Biotechnology, Bolesława Krzywoustego 4, 44-100 Gliwice, Poland
| | - Rafał Jȩdrysiak
- Silesian University
of Technology, Department of Organic Chemistry, Bioorganic Chemistry
and Biotechnology, Bolesława Krzywoustego 4, 44-100 Gliwice, Poland
| | - Justyna Dziadosz
- University of Silesia in
Katowice, Institute of Chemistry, Szkolna 9, 40-006 Katowice, Poland
| | - Marcin Libera
- University of Silesia in
Katowice, Institute of Chemistry, Szkolna 9, 40-006 Katowice, Poland
| | - Sławomir Boncel
- Silesian University
of Technology, Department of Organic Chemistry, Bioorganic Chemistry
and Biotechnology, Bolesława Krzywoustego 4, 44-100 Gliwice, Poland
| | - Marzena Dzida
- University of Silesia in
Katowice, Institute of Chemistry, Szkolna 9, 40-006 Katowice, Poland
| |
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