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Nanomaterials
Special Issues
Thermophysical Properties of Nanocolloids and Their Potential Applications II
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Thermophysical Properties of Nanocolloids and Their Potential Applications II

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Synthesis, Interfaces and Nanostructures".

Deadline for manuscript submissions: closed (20 February 2024) | Viewed by 2462

Special Issue Editor

Prof. Dr. Alina Adriana Minea

E-Mail Website
Guest Editor
Faculty of Materials Science and Engineering, Gheorghe Asachi Technical University of Iasi, 700070 Iasi, Romania
Interests: nanofluid simulation techniques; nanofluid thermophysical properties; energy efficiency; heat and mass transfer numerical approach
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The present Special Issue is a continuation of previous successful Special Issue, titled “Thermophysical Properties of Nanocolloids and Their Potential Applications” (https://www.mdpi.com/journal/nanomaterials/special_issues/Thermophysical_Nanocolloids), also hosted by this editor.

Nanocolloids are not a new concept and also include fashionable new fluids now identified by the literature as nanofluids. The term “nanofluid” is applied to a variety of these base fluids enhanced with nanoparticles. Nevertheless, a wider term is “nanocolloids”.

This Special Issue of Nanomaterials invites original high-quality research papers covering the most recent advances in nanocolloids’ thermophysical properties, as well as comprehensive reviews addressing state-of-the-art topics in the area of nanoparticle suspensions in fluids, with relevant practical applications.

This Special Issue is novel in that it encourages papers that can be described as opinions and open questions, as well as critical assessments in this particular topic. Papers addressing areas outside engineering are encouraged in order to broaden the application potential of nanocolloids and to facilitate new opinions.

This Special Issue will mainly cover the characterization of nanoparticle-enhanced new fluids/nanocolloids focusing on relevant or innovative applications of such an approach. The base fluids can be water, glycols, oils, molten salts, or ionic liquids, covering but not limited to most applications related to heat transfer, lubrication, and chemical engineering. Applications in innovative systems are welcome.

This Special Issue will maintain its focus on nanocolloid applications in all engineering areas, as well as extending to medicinal opportunities. This is a good occasion to combine original papers on the proposed topic and to outline several guidelines for developing the area of nanocolloids.

In advance, we would like to gratefully acknowledge the authors and reviewers who will participate to in this Special Issue and contribute to the development of nanocolloids research.

Prof. Dr. Alina Adriana Minea
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. Nanomaterials 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 2900 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

  • nanocolloids
  • nanofluids
  • ionanofluids and nanoparticle enhanced ionic liquids (NEIL)
  • nano-enhanced phase change materials
  • PEG based fluids with nanoparticles
  • experimental studies on thermophysical properties
  • simulation
  • theoretical models for predicting thermophysical properties
  • applications in engineering
  • applications in other areas (medicine, drugs manufactory, etc.)

Published Papers (2 papers)

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Research

17 pages, 6016 KiB  
Article
Experimental Study on Thermal Conductivity of Water-Based Magnetic Fluid Loaded with Different Nanoparticles
by Zhe Su, Yanhong Cheng, Zhifeng Liu, Jiayi Zhou, Decai Li and Ying Li
Nanomaterials 2023, 13(22), 2952; https://doi.org/10.3390/nano13222952 - 15 Nov 2023
Viewed by 795
Abstract
Magnetic fluids, a new type of energy transfer fluid with tunable properties, have garnered significant interest from researchers worldwide. Hybrid magnetic fluids prepared by adding different types of nanoparticles exhibit superior thermophysical properties and functional characteristics. In this paper, we prepared a water-based [...] Read more.
Magnetic fluids, a new type of energy transfer fluid with tunable properties, have garnered significant interest from researchers worldwide. Hybrid magnetic fluids prepared by adding different types of nanoparticles exhibit superior thermophysical properties and functional characteristics. In this paper, we prepared a water-based magnetic fluid loaded with multi-walled carbon nanotubes (MCNTs), silver (Ag), and copper (Cu) to enhance thermal conductivity. Using a transient double hot-wire method, we designed and built an experimental measurement system for the thermal conductivity of magnetic fluids with an average measurement error of less than 5%. We studied the thermal conductivity of hybrid magnetic fluids under different conditions and evaluated the advantages and disadvantages of various models, including the Maxwell model, H&C model, Tim model, Y&C model, and Evans model. Our results show that MF+MCNTs, MF+Ag, and MF+Cu nanofluids can all improve the thermal conductivity of the carrier fluid, with MF+MCNTs exhibiting the best improvement effect of 10.93%. Among the five models evaluated, the Evans model had the best predictive effect with a deviation range within 5%. This work provides theoretical and practical reference for enhancing the thermal conductivity of magnetic fluids and provides a more accurate theoretical model for calculating the thermal conductivity of hybrid magnetic fluids. Full article
(This article belongs to the Special Issue Thermophysical Properties of Nanocolloids and Their Potential Applications II)
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17 pages, 2978 KiB  
Article
Experimental Study on Electrical Conductivity of Several [C4mim][BF4] Ionic-Liquid-Based Nanocolloids
by E. I. Chereches and A. A. Minea
Nanomaterials 2023, 13(7), 1224; https://doi.org/10.3390/nano13071224 - 30 Mar 2023
Cited by 6 | Viewed by 1269
Abstract
Nanocolloids are receiving considerable attention in regard to their properties and future applications, especially as heat transfer fluids and phase change materials for energy storage. Additionally, studies on ionic liquids and ionic-liquid-based nanocolloids are at the forefront of research preoccupations. This study aims [...] Read more.
Nanocolloids are receiving considerable attention in regard to their properties and future applications, especially as heat transfer fluids and phase change materials for energy storage. Additionally, studies on ionic liquids and ionic-liquid-based nanocolloids are at the forefront of research preoccupations. This study aims to shed light on applications of nanocolloids based on [C4mim][BF4] ionic liquid, giving insight into the electrical conductivity of [C4mim][BF4] ionic liquid, as well as three types of nanoparticles suspended in this particular ionic liquid, namely Al2O3 (alumina), ZnO (zinc oxide) and MWCNT (multi-walled carbon nanotubes). In this experimental research, three types of suspensions were carefully prepared and the electrical conductivity was measured both at ambient temperature and during heating. The results are discussed in the context of the state of the art. The electrical conductivity variation with temperature was found to be linear, and nanoparticle loading significantly influenced the electrical conductivity of the suspensions. A complex analysis in terms of temperature and nanoparticle type and loading was performed. In conclusion, the electrical properties are relevant for many applications and further experimental work needs to be devoted to their study. Full article
(This article belongs to the Special Issue Thermophysical Properties of Nanocolloids and Their Potential Applications II)
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