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Advanced Nanomaterials in Materials Chemistry and Engineering and Their Applications
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Advanced Nanomaterials in Materials Chemistry and Engineering and Their Applications

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

Deadline for manuscript submissions: closed (31 March 2023) | Viewed by 9368

Special Issue Editor

Prof. Dr. Hasi Rani Barai

E-Mail Website
Guest Editor
Department of Mechanical Engineering, School of Mechanical and IT Engineering, Yeungnam University, Republic of Korea
Interests: nanomaterials; sensors; energy storage devices; supercapacitors; biosensors; nanocomposite engineering
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Advanced Nanomaterials in Materials Chemistry and Engineering and their applications are an essential and substantive challenge in the present research world. The past few decades have proved the rapid development of these nanomaterials and nanotechnology in the energy storage devices, biosensors, thin films and engineering field. However, it demands continuous development, which is challenged due to its limited practical applications. The integration of engineering design and application optimization for different types of advanced nanomaterials can be summarized in the most recent approaches, focusing on energy conversion technology including various devices, supercapacitors, batteries, mechanical engineering, biotechnology, chemical engineering, drug delivery systems, thin films, biosensors or consumers systems etc. Due to their unique properties in various fields of application, they have emerged as the key materials in their respective applications. They can show good performance in energy density, power density, cyclic stability, flexibility, or other properties, while developing their sustainability as renewable materials or energy storage devices. The goal of this Special Issue is to the highlight instances where innovative advanced nanomaterials are being applied in energy storage devices and biosensors that display outstanding performance, from their fundamental properties to advanced functional applications. In addition, a renewable and friendly green energy environment is also highly anticipated. This Special Issue covers these topics and focuses on technology–material multi-dimensional relationships.

We would like to invite you to submit your work to this Special Issue. The deadline for submission is 31 June 2023. We look forward to hearing from you.

Dr. Hasi Rani Barai
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

  • advanced nanomaterials
  • energy storage devices
  • synthesis
  • nanotechnology
  • biosensors
  • engineering
  • supercapacitors
  • batteries
  • film surfaces
  • nanocomposites

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Further information on MDPI's Special Issue policies can be found here.

Published Papers (3 papers)

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Research

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16 pages, 2431 KiB  
Article
Encapsulation of Carbon Nanotubes by Styrene and Butyl Acrylate Particles via Suspension Polymerization for Polymerized Toner Applications
by Eid M. Alosime, Omar A. Adam and Ahmed A. Basfar
Materials 2023, 16(11), 3941; https://doi.org/10.3390/ma16113941 - 24 May 2023
Cited by 2 | Viewed by 2853
Abstract
Electrophotographic printing and copying processes primarily use toner, which is a mixture of colorant, polymer, and additives. Toner can be made using traditional mechanical milling techniques or more contemporary chemical polymerization techniques. Suspension polymerization provides spherical particles with less stabilizer adsorption, homogeneous monomers, [...] Read more.
Electrophotographic printing and copying processes primarily use toner, which is a mixture of colorant, polymer, and additives. Toner can be made using traditional mechanical milling techniques or more contemporary chemical polymerization techniques. Suspension polymerization provides spherical particles with less stabilizer adsorption, homogeneous monomers, higher purity, and easier control of the reaction temperature. In contrast to these advantages, however, the particle size resulting from suspension polymerization is too large for toner. To overcome this disadvantage, devices such as high-speed stirrers and homogenizers can be used to reduce the size of the droplets. This research investigated the use of carbon nanotubes (CNTs) instead of carbon black as the pigment in toner development. We succeeded in achieving a good dispersion of four different types of CNT, specifically modified with NH2 and Boron or unmodified with long or short chains in water rather than chloroform, using sodium n-dodecyl sulfate as a stabilizer. We then performed polymerization of the monomers styrene and butyl acrylate in the presence of the different CNT types and found that the best monomer conversion and largest particles (in the micron range) occurred with CNTs modified with boron. The insertion of a charge control agent into the polymerized particles was achieved. Monomer conversion of over 90% was realized with all concentrations of MEP-51, whereas conversion was under 70% with all concentrations of MEC-88. Furthermore, analysis with dynamic light scattering and scanning electron microscopy (SEM) indicated that all polymerized particles were in the micron size range, suggesting that our newly developed toner particles were less harmful and environmentally friendly products than those typically and commercially available. The SEM micrographs clearly showed good dispersion and attachment of the CNTs on the polymerized particles (no CNT aggregation was found), which has never been published before. Full article
(This article belongs to the Special Issue Advanced Nanomaterials in Materials Chemistry and Engineering and Their Applications)
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25 pages, 2417 KiB  
Article
Nano Edible Coatings and Films Combined with Zinc Oxide and Pomegranate Peel Active Phenol Compounds Has Been to Extend the Shelf Life of Minimally Processed Pomegranates
by Hosam Aboul Anean, L. O. Mallasiy, Dina M. D. Bader and Heba A. Shaat
Materials 2023, 16(4), 1569; https://doi.org/10.3390/ma16041569 - 13 Feb 2023
Cited by 15 | Viewed by 3188
Abstract
Edible coating and film from chitosan and incorporating it with the action of ZnONPs on active phenol compounds from extracts of pomegranate peel (PPE) The physical and chemical properties of edible films composed of zinc oxide ZnONPs and active phenol compounds extracted from [...] Read more.
Edible coating and film from chitosan and incorporating it with the action of ZnONPs on active phenol compounds from extracts of pomegranate peel (PPE) The physical and chemical properties of edible films composed of zinc oxide ZnONPs and active phenol compounds extracted from pomegranate peel (PPE) were investigated. Adding ZnONPs with active phenol compounds from extracted pomegranate peel(PPE) to chitosan films can provide safe edible films, decrease microbial growth and consequently prolong the shelf life of pomegranates, as well as improve the physiochemical stability of the pomegranate. The substances used in this experiment were film with a (A) extract of pomegranate peels (PPE), 5% (0.1%), (B)ZnONPs 1% (0.02%), (C) ZnONPs 2% (0.04%), (D) ZnONPs 3% (0.06%), (E) ZnONPs 1%/PPE1% (0.02%), (F) ZnONPs 2%/PPE2% (0.04%), (G) ZnONPs 3%/PPE3% (0.06%) wt% of chitosan on quality attributes and prolonging the shelf life of pomegranates were stored in plastic containers at 2 °C and 90–95% relative humidity for 20 days. The treatments of (G) ZnONPs 3%/PPE3% (0.06%) loaded on chitosan as well as chitosan and (D) ZnONPs 3% (0.06%) reduced the weight loss, had excellent microbial count until 20 days of storage, and recorded the lowest microbial count and mould & yeast colonies. Other chemical properties, such as total soluble solids content, acidity, anthocyanin content, firmness, and ascorbic acid, were investigated. Results indicated that ZnONPs 3%/PPE3% (0.06%) loaded on chitosan or ZnONPs 3% (0.06%) are the best treatments for preserving pomegranate arils. It was found that the best measurements were that the film-forming nan emulsion solutions decreased by E% 110 nm and B% 134 nm. Nano followed treatment, F% 188.7 nm, compared to nano edible films, which were A 0% 1312 nm. Full article
(This article belongs to the Special Issue Advanced Nanomaterials in Materials Chemistry and Engineering and Their Applications)
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Review

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16 pages, 3393 KiB  
Review
Nanocomposite Electrocatalysts for Hydrogen Evolution Reactions (HERs) for Sustainable and Efficient Hydrogen Energy—Future Prospects
by Ahmed Hussain Jawhari and Nazim Hasan
Materials 2023, 16(10), 3760; https://doi.org/10.3390/ma16103760 - 16 May 2023
Cited by 14 | Viewed by 2487
Abstract
Hydrogen is considered a good clean and renewable energy substitute for fossil fuels. The major obstacle facing hydrogen energy is its efficacy in meeting its commercial-scale demand. One of the most promising pathways for efficient hydrogen production is through water-splitting electrolysis. This requires [...] Read more.
Hydrogen is considered a good clean and renewable energy substitute for fossil fuels. The major obstacle facing hydrogen energy is its efficacy in meeting its commercial-scale demand. One of the most promising pathways for efficient hydrogen production is through water-splitting electrolysis. This requires the development of active, stable, and low-cost catalysts or electrocatalysts to achieve optimized electrocatalytic hydrogen production from water splitting. The objective of this review is to survey the activity, stability, and efficiency of various electrocatalysts involved in water splitting. The status quo of noble-metal- and non-noble-metal-based nano-electrocatalysts has been specifically discussed. Various composites and nanocomposite electrocatalysts that have significantly impacted electrocatalytic HERs have been discussed. New strategies and insights in exploring nanocomposite-based electrocatalysts and utilizing other new age nanomaterial options that will profoundly enhance the electrocatalytic activity and stability of HERs have been highlighted. Recommendations on future directions and deliberations for extrapolating information have been projected. Full article
(This article belongs to the Special Issue Advanced Nanomaterials in Materials Chemistry and Engineering and Their Applications)
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