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Processes
Special Issues
High-Efficiency Nanomaterials Synthesis and Applications
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High-Efficiency Nanomaterials Synthesis and Applications

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Materials Processes".

Deadline for manuscript submissions: 5 May 2025 | Viewed by 4562

Special Issue Editors

Dr. Dhanasekaran Vikraman

E-Mail Website
Guest Editor
Division of Electronics and Electrical Engineering, Dongguk University-Seoul, Seoul 04620, Republic of Korea
Interests: 2D materials; metal oxides; energy; hydrogen production; material processing; biomedical
Special Issues, Collections and Topics in MDPI journals
Dr. Sajjad Hussain

E-Mail Website
Guest Editor
Department of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 05006, Republic of Korea
Interests: transition metal dichalcogenides; nanomaterials; hybrid strucutres

Special Issue Information

Dear Colleagues,

Nanomaterial systems are currently at the center of energetic research because of their multifunctional capability and adaptability. To meet future needs, nanomaterials have great promise in an extensive array of applications. This Special Issue focuses on the development of efficient nanomaterials for energy, biological and catalysis applications.

Topics of interest for this Special Issue include, but are not limited to, the following:

  • Design of novel nanomaterials;
  • Porous and surface-modified nanomaterials;
  • Reaction kinetics of nanomaterials;
  • Assembly of core–shell nanomaterials;
  • Nanomaterials for solar cells and sensor applications;
  • Usage of nanomaterials for wastewater treatment and hazardous materials removal or detection;
  • Nanomaterials synthesis for energy storage devices;
  • Nanomaterials design for energy conversion and catalytic applications including fuel cells and electro- and photo-catalysts;
  • Nanostructure’s role on antimicrobial and biological properties;
  • Nanomaterial conversion of environmental waste materials etc.

This Special Issue will intensively cover the topic area of “High-Efficiency Nanomaterials Synthesis and Applications”, exploring the significance of state-of-the-art research in the field.

Dr. Dhanasekaran Vikraman
Dr. Sajjad Hussain
Guest Editors

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. Processes is an international peer-reviewed open access monthly 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 2400 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

  • nanostructures
  • nanocomposites
  • energy
  • sensors
  • biomolecules
  • hybrids

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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

14 pages, 3044 KiB  
Article
Structural, Electrochemical, and Supercapacitor Characterization of Double Metal Oxides Doped Within ZIF-8 Composites
by Sadeem Saba, Abdulrhman M. Alsharari, Nadiah Y. Aldaleeli, Meshari M. Aljohani and Taymour A. Hamdalla
Processes 2025, 13(3), 859; https://doi.org/10.3390/pr13030859 - 14 Mar 2025
Viewed by 414
Abstract
This study investigates the application of double metal oxide zinc ferrite (ZnFe2O3) doped within zeolitic imidazolate framework-8 (ZIF-8) composites for structural, electrochemical, and supercapacitor characterization. The structural characterization has been carried out using XRD, FTIR, DTA, UV-VIS, and HRTEM. [...] Read more.
This study investigates the application of double metal oxide zinc ferrite (ZnFe2O3) doped within zeolitic imidazolate framework-8 (ZIF-8) composites for structural, electrochemical, and supercapacitor characterization. The structural characterization has been carried out using XRD, FTIR, DTA, UV-VIS, and HRTEM. By incorporating ZnFe2O3, significant enhancements in the structural integrity and morphology of the ZIF-8 matrices have been achieved, with a decrease in the average crystallite size by about 23%. At 500 °C, the DTA analysis indicated that the weight loss associated with ZnFe2O3 decreased by approximately 5%. The estimated Eg values are 3.08 eV and 3.28 eV for ZIF-8 and ZIF-8@ZnFe2O3, respectively. Regarding the electrochemical performance of the ZIF-8@ZnFe2O3, the anodic peak current density is approximately 0.0025 A (at around 0.5 V), at a scan rate of 10 mV/s. The peak current values increase more rapidly, by about 41%, with increasing scan rate when ZnFe2O3 is present, indicating a synergistic effect between the ZIF-8 and ZnFe2O3 components. The high observed current density peak at 0.03 V can be attributed to the Fe2+/Fe3+ redox couple, facilitated by the ZnFe2O3 component. The ZnFe2O3 addition enhances the electrochemical activity of ZIF-8, leading to increased peak current values at various scan rates. This suggests that the ZnFe2O3 may facilitate charge transfer or improve the conductivity of the material. Full article
(This article belongs to the Special Issue High-Efficiency Nanomaterials Synthesis and Applications)
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13 pages, 4598 KiB  
Article
The Transformative Role of Nano-SiO2 in Polymer Electrolytes for Enhanced Energy Storage Solutions
by S. Jayanthi, M. Vahini, S. Karthickprabhu, A. Anusuya, N. Karthik, K. Karuppasamy, Tholkappiyan Ramachandran, A. Nichelson, M. Mahendran, B. Sundaresan and Dhanasekaran Vikraman
Processes 2024, 12(10), 2174; https://doi.org/10.3390/pr12102174 - 7 Oct 2024
Cited by 8 | Viewed by 1913
Abstract
In lithium–polymer batteries, the electrolyte is an essential component that plays a crucial role in ion transport and has a substantial impact on the battery’s overall performance, stability, and efficiency. This article presents a detailed study on developing nanostructured composite polymer electrolytes (NCPEs), [...] Read more.
In lithium–polymer batteries, the electrolyte is an essential component that plays a crucial role in ion transport and has a substantial impact on the battery’s overall performance, stability, and efficiency. This article presents a detailed study on developing nanostructured composite polymer electrolytes (NCPEs), prepared using the solvent casting technique. The materials selected for this investigation include poly(vinyl chloride) (PVC) as the host polymer, lithium bromide (LiBr) as the salt, and silica (SiO2) as the nanofiller. The addition of nano-SiO2 dramatically enhanced the ionic conductivity of the electrolytes, with the highest value of 6.2 × 10−5 Scm−1 observed for the sample containing 7.5 wt% nano-SiO2. This improvement is attributed to an increased amorphicity resulting from the interactions between the polymer, salt, and filler components. A structural analysis of the prepared NCPEs using X-ray diffraction revealed the presence of both crystalline and amorphous phases, further validating the enhanced ionic transport. Additionally, the thermal stability of the NCPEs was found to be excellent, withstanding temperatures up to 334 °C, thereby reinforcing their potential application in lithium–polymer batteries. This work explores the electrochemical performance of a fabricated lithium-ion-conducting primary electrochemical cell (Zn + ZnSO4·7H2O|PVC: LiBr: SiO2|PbO2 + V2O5), which demonstrated an open circuit voltage of 2.15 V. The discharge characteristics of the fabricated cell were thoroughly studied, showcasing the promising potential of these NCPEs. With the support of superior morphological and electrical properties, as-prepared electrolytes offer an effective pathway for future advancements in lithium–polymer battery technology, making them a highly viable candidate for enhanced energy storage solutions. Full article
(This article belongs to the Special Issue High-Efficiency Nanomaterials Synthesis and Applications)
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19 pages, 9744 KiB  
Article
Synthesis and Characterization of Coconut-Derived Graphene Nano Sheet (GNS) and Its Properties in Nickel/GNS and Zinc/GNS Hybrid Electrodes
by Kerista Tarigan, Rikson Siburian, Isa Anshori, Nuni Widiarti, Yatimah Binti Alias, Boon Tong Goh, Jingfeng Huang, Fathan Bahfie, Yosia Gopas Oetama Manik, Ronn Goei and Alfred Iing Yoong Tok
Processes 2024, 12(9), 1943; https://doi.org/10.3390/pr12091943 - 10 Sep 2024
Cited by 2 | Viewed by 1451
Abstract
This study introduces a sustainable method of producing a graphene nano sheet (GNS) from coconut shells and investigates its application in GNS, Ni/GNS, and Zn/GNS electrodes for advanced energy storage devices. The GNS was synthesized in a scalable manner using a pyrolysis and [...] Read more.
This study introduces a sustainable method of producing a graphene nano sheet (GNS) from coconut shells and investigates its application in GNS, Ni/GNS, and Zn/GNS electrodes for advanced energy storage devices. The GNS was synthesized in a scalable manner using a pyrolysis and impregnation technique, with its successful synthesis verified by X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDX), Raman spectroscopy, and electrical conductivity measurement characterizations. The study highlights the enhanced performance of Zn/GNS electrodes, which outperform both pure GNS and Ni/GNS variants. This superior performance is attributed to the smaller particle size of Zn (mean = 2.356 µm) compared to Ni (mean = 3.09 µm) and Zn’s more favourable electron configuration for electron transfer. These findings demonstrate the potential of bio-derived GNS composites as efficient, high-performance electrodes, paving the way for more sustainable and cost-effective energy storage solutions. Full article
(This article belongs to the Special Issue High-Efficiency Nanomaterials Synthesis and Applications)
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