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Synthesis, Characterization, Theoretical Studies and Application of Nanofluids
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Synthesis, Characterization, Theoretical Studies and Application of Nanofluids

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Advanced Composites".

Deadline for manuscript submissions: closed (20 June 2023) | Viewed by 8511

Special Issue Editor

Prof. Dr. Antonio Sánchez-Coronilla

E-Mail Website
Guest Editor
Physical Chemistry Department, Faculty of Pharmacy, University of Seville, Sevilla, Spain
Interests: materials science; perovskite; nanofluids; thermal energy storage; drug delivery; green energy; renewable energy; molecular dynamics; density functional theory
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Nanofluids in general are suspension of nanomaterials in a fluid. Those suspensions modify the properties of the fluid itself. Research efforts have been devoted to the study of nanofluids for cooling, energy storage, heating, boiling, solar applications and from a theoretical modelling viewpoint.

It is my pleasure to invite you to publish your research on materials works in full papers, short communications, or reviews in the Materials Special Issue, “Synthesis, Characterization, Theoretical Studies and Application of Nanofluids.” This Special Issue will attempt to cover all types and aspects of the studies on the synthesis, energy, lubrication and theoretical modelling of nanofluids.

Prof. Dr. Antonio Sánchez-Coronilla
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Materials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • nanofluids
  • nanomaterials
  • nanosalts
  • phase change materials
  • solar cells
  • solar energy
  • nanoparticle
  • thin films
  • metal–organic frameworks
  • energy storage
  • cooling

Published Papers (4 papers)

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Research

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10 pages, 2371 KiB  
Article
DFT Study on the Enhancement of Isobaric Specific Heat of GaN and InN Nanosheets for Use as Nanofluids in Solar Energy Plants
by Francisco Moreno-Velarde, Elisa I. Martín, José Hidalgo Toledo and Antonio Sánchez-Coronilla
Materials 2023, 16(3), 915; https://doi.org/10.3390/ma16030915 - 18 Jan 2023
Cited by 2 | Viewed by 1016
Abstract
In this work, GaN and InN nanosheets with dodecylamine (DDA) as surfactant have been studied as nanofluids to be used in solar plants. The interactions between the sheets and the surfactants have been performed using density functional theory. The most favorable interaction site [...] Read more.
In this work, GaN and InN nanosheets with dodecylamine (DDA) as surfactant have been studied as nanofluids to be used in solar plants. The interactions between the sheets and the surfactants have been performed using density functional theory. The most favorable interaction site on the surface corresponds to the metallic atom of the sheet with the N atom of the surfactant. In this interaction, the pair of electrons of N from the surfactant with the metal atom of the sheet play a stabilizing role, which is corroborated by electron localization function (ELF), quantum theory of atoms in molecules (QTAIM), and density of states (DOS) analysis. The isobaric specific heat values for the most favorable interaction were obtained in the presence of water, ethylene glycol, and diphenyl oxide as solvents for the first time. The highest value corresponds to systems with diphenyl oxide, being the values obtained of 0.644 J/gK and 0.363 J/gK for GaN-DDA and InN-DDA systems, respectively. These results open the possibilities of using GaN-DDA and InN-DDA systems in solar energy applications. Full article
(This article belongs to the Special Issue Synthesis, Characterization, Theoretical Studies and Application of Nanofluids)
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14 pages, 3781 KiB  
Article
A Simulation Methodology for Analyzing the Energy-Absorption Capabilities of Nanofluidic-System-Filled Tube under Split Hopkinson Pressure Bar Experiment
by Shuming Zhang, Ziqian Zhu, Shuaijun Li, Fei Yu, Chunping Tian and Lu Yao
Materials 2022, 15(19), 7030; https://doi.org/10.3390/ma15197030 - 10 Oct 2022
Cited by 2 | Viewed by 1136
Abstract
The energy-absorption mechanism of nanofluidic systems is being investigated under dynamic cases, represented by the split Hopkinson pressure bar experiment. However, the cost of this cannot be ignored. Therefore, numerical simulation is playing an increasingly important role in optimizing the split Hopkinson pressure [...] Read more.
The energy-absorption mechanism of nanofluidic systems is being investigated under dynamic cases, represented by the split Hopkinson pressure bar experiment. However, the cost of this cannot be ignored. Therefore, numerical simulation is playing an increasingly important role in optimizing the split Hopkinson pressure bar experimental technology and analyzing its accuracy. In this paper, a three-dimensional finite element simulation model of the split Hopkinson pressure bar experimental devices was proposed to analyze the energy-absorption capabilities of nanofluidic-system-filled tubes. The reliability of this methodology was discussed in terms of model construction, model validation and potential application, indicating the simulation methodology is applicable to further investigation and can provide a reference for engineering practice. The simulation results showed that the infiltration pressure and the mass ratio of solid to liquid determine the post-buckling compression stress and the effective compression stroke, respectively. Full article
(This article belongs to the Special Issue Synthesis, Characterization, Theoretical Studies and Application of Nanofluids)
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27 pages, 5792 KiB  
Article
Investigation on Rheological Properties of Water-Based Novel Ternary Hybrid Nanofluids Using Experimental and Taguchi Method
by Jalal Mohammed Zayan, Abdul Khaliq Rasheed, Akbar John, Mohammad Khalid, Ahmad Faris Ismail, Abdul Aabid and Muneer Baig
Materials 2022, 15(1), 28; https://doi.org/10.3390/ma15010028 - 21 Dec 2021
Cited by 22 | Viewed by 2469
Abstract
This study presents the rheological behavior of water-based GO-TiO2-Ag and rGO-TiO2-Ag ternary-hybrid nanofluids. The impact of nanoparticles’ volumetric concentration and temperature on the rheological properties were studied. All experiments were performed under temperatures ranging from 25 to 50 °C [...] Read more.
This study presents the rheological behavior of water-based GO-TiO2-Ag and rGO-TiO2-Ag ternary-hybrid nanofluids. The impact of nanoparticles’ volumetric concentration and temperature on the rheological properties were studied. All experiments were performed under temperatures ranging from 25 to 50 °C in the solid volume concentration range of 0.5–0.00005%. The data optimization technique was adopted using the Taguchi method. The types of nanomaterials, concentration, temperature, and shear rate were chosen to optimize the viscosity and shear stress. The effect of shear stress, angular sweep, frequency sweep, and damping factor ratio is plotted. The experimental results demonstrated that the rheological properties of the ternary hybrid nanofluid depend on the ternary hybrid nanofluid’s temperature. The viscosity of ternary hybrid nanofluids (THNf) change by 40% for GO-TiO2-Ag and 33% for rGO-TiO2-Ag when temperature and shear rates are increased. All the ternary hybrid nanofluids demonstrated non-Newtonian behavior at lower concentrations and higher shear stress, suggesting a potential influence of nanoparticle aggregation on the viscosity. The dynamic viscosity of ternary hybrid nanofluid increased with enhancing solid particles’ volume concentration and temperature. Full article
(This article belongs to the Special Issue Synthesis, Characterization, Theoretical Studies and Application of Nanofluids)
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Review

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21 pages, 8324 KiB  
Review
Research Status of High-Purity Metals Prepared by Zone Refining
by Liang Yu, Xiaoan Kang, Luona Chen, Kun Luo, Yanli Jiang and Xiuling Cao
Materials 2021, 14(8), 2064; https://doi.org/10.3390/ma14082064 - 20 Apr 2021
Cited by 8 | Viewed by 3314
Abstract
The zone refining method is a physical method for effectively purifying metals. Increasing yield and reducing impurity content have always been the focus of its research. This article systematically summarizes the relevant research on the production of high-purity metals by zone refining, including [...] Read more.
The zone refining method is a physical method for effectively purifying metals. Increasing yield and reducing impurity content have always been the focus of its research. This article systematically summarizes the relevant research on the production of high-purity metals by zone refining, including mechanisms, parameter optimization, zone refining types, analysis methods, limitations, and future development directions, and it provides relevant theoretical foundations for the production of high-purity metals as well. Full article
(This article belongs to the Special Issue Synthesis, Characterization, Theoretical Studies and Application of Nanofluids)
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