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Synthesis and Characterization of Nanomaterials for Electrochemical Applications
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Synthesis and Characterization of Nanomaterials for Electrochemical 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 August 2021) | Viewed by 8910

Special Issue Editors

Dr. Nadia Garino

E-Mail Website
Guest Editor
1. Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Turin, Italy
2. Center for Sustainable Future Technologies—CSFT@POLITO, Istituto Italiano di Tecnologia, Via Livorno, 60, 10144 Turin, Italy
Interests: nanomaterials synthesis; green synthesis; renewable energy; catalysis; rGO and metal oxides-based materials
Prof. Dr. Yunfeng Qiu

E-Mail Website
Guest Editor
Key Laboratory of Microsystems and Microstructures Manufacturing, School of Medicine and Health, Harbin Institute of Technology, No.2 Yikuang Street, Nan Gang District, Harbin 150080, China
Interests: microbial fuel cells (including anode/cathode design and preparation, power generation, hydrogen production, and antibiofouling of cathodes); electrocatalytic water-splitting (including hydrogen evolution reaction, oxygen evolution reaction, organic compounds oxidation reaction); antibacterial nanocomposites

Special Issue Information

Dear Colleagues,

In the last years, many efforts have been made for the development of smart and high-efficiency electrochemical systems, in particular for energy conversion and storage, and of technologies for pollutants removal/conversion, in order to satisfy the growing demand of new and sustainable energy resources and to support a more environmentally friendly approach.

Systems such as fuel cells, metal–air batteries, LiS batteries, solar cells, and catalysts for pollutants conversion (i.e., CO2 reduction) attract particular worldwide interest due to their ability to conjugate all the nanotechnology possibilities delivering high performances, allowing to surpass and replace old low-efficiency technologies.

Nowadays, many different synthetic approaches are available and, therefore, it is possible to design and develop new interesting nanomaterials or nano-composites that can combine multifunctional properties easily adaptable to different areas of application.

The scope of this Special Issue, entitled “Synthesis and Characterization of Nanomaterials for Electrochemical Applications”, is to collect experimental research papers that can offer a detailed view of the research on the synthesis and characterization of novel nanostructured materials with peculiar electrochemical properties, able to face the current challenges related to environmental sustainability and energy production/conversion fields.

Articles that refer to carbon-based materials, transition metal-based compounds, 2D or 3D nanomaterials or nanocomposites are welcome. Green chemistry synthetic approaches and multifunctional materials will be of particular interest.

As a researcher in the field, I would like to invite you to contribute enhancing the quality of this Special Issue.

Dr. Nadia Garino
Dr. Yunfeng Qiu
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. 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

  • nanostructure synthesis
  • electrochemical application
  • energy conversion
  • catalysis
  • multifunctional

Published Papers (3 papers)

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Research

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11 pages, 2806 KiB  
Article
Microwave-Assisted Synthesis of Nitrogen and Sulphur Doped Graphene Decorated with Antimony Oxide: An Effective Catalyst for Oxygen Reduction Reaction
by Nadia Garino, Adriano Sacco, Angelica Chiodoni, Candido F. Pirri and Micaela Castellino
Materials 2022, 15(1), 10; https://doi.org/10.3390/ma15010010 - 21 Dec 2021
Cited by 4 | Viewed by 2382
Abstract
In this study, we report on the facile synthesis of a novel electrocatalysts for the oxygen reduction reaction (ORR), based on reduced graphene oxide (RGO), functionalized with metallic and non-metallic elements. In particular, thanks to a fast one-pot microwave-assisted procedure, we induced, in [...] Read more.
In this study, we report on the facile synthesis of a novel electrocatalysts for the oxygen reduction reaction (ORR), based on reduced graphene oxide (RGO), functionalized with metallic and non-metallic elements. In particular, thanks to a fast one-pot microwave-assisted procedure, we induced, in the RGO graphene lattice, a combined doping with nitrogen and sulphur, and the simultaneous decoration with antimony oxide nanocrystals. The multi-doped–decorated material shows enhanced catalytic performance towards ORR, with respect to common nitrogen- or sulphur-doped carbon-based materials. The presence of co-doping is confirmed by transmission electron microscopy and X-ray photoelectron spectroscopy analysis. The detailed electrochemical characterization shows the simultaneous effects of dopant atoms on the catalytic behavior. In particular, the importance of nitrogen and sulphur atoms in driving the oxygen absorption, together with the role of antimony in enhancing the electrochemical performance toward the ORR, are discussed. Full article
(This article belongs to the Special Issue Synthesis and Characterization of Nanomaterials for Electrochemical Applications)
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19 pages, 7565 KiB  
Article
Synthesis, Electrochemical Studies, and Antimicrobial Properties of Fe3O4 Nanoparticles from Callistemon viminalis Plant Extracts
by Gloria E. Uwaya, Omolola E. Fayemi, El-Sayed M. Sherif, Harri Junaedi and Eno E. Ebenso
Materials 2020, 13(21), 4894; https://doi.org/10.3390/ma13214894 - 31 Oct 2020
Cited by 16 | Viewed by 2272
Abstract
Less toxic, environmentally safe green-mediated iron (III) oxide nanoparticles (Fe3O4-NP) synthesized using Callistemon viminalis (C. viminalis) leaf (Fe3O4-NPL) and flower (Fe3O4-NPF) extracts is reported in this work for the [...] Read more.
Less toxic, environmentally safe green-mediated iron (III) oxide nanoparticles (Fe3O4-NP) synthesized using Callistemon viminalis (C. viminalis) leaf (Fe3O4-NPL) and flower (Fe3O4-NPF) extracts is reported in this work for the first time. Total flavonoids and phenols present in the plant extracts were determined. Characterization of the nanoparticles was carried out using Fourier transform infrared (FTIR) spectroscopy, ultraviolet–visible spectroscopy (UV–VIS), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), and Malvern zeta sizer. Other properties of the nanoparticles were investigated using the thermogravimetric analyser and cyclic voltammetry. The average particle sizes obtained for Fe3O4-NPL and Fe3O4-NPF were 17.91 nm and 27.93 nm, respectively. Fe3O4-NPL exhibited an excellent electrochemical activity when compared with Fe3O4-NPF based on a stability study using cyclic voltammetry and regression value. Additionally, Fe3O4-NPF displayed excellent antimicrobial activity against Bacillus cereus, Salmonella enteritidis, and Vibrio cholerae with zones of inhibition of 13, 15, and 25 mm, respectively. Simple, cheap, and less toxic green-mediated iron (III) oxide nanoparticles synthesized from C. viminalis leaf (Fe3O4-NPL) and flower (Fe3O4-NPF) extracts hold the potential of being used to control the activity of pathogenic bacteria of health importance and as an electrochemical sensor for both biological and environmental analytes. Full article
(This article belongs to the Special Issue Synthesis and Characterization of Nanomaterials for Electrochemical Applications)
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14 pages, 1642 KiB  
Review
Electrospun Nanofibers and Electrochemical Techniques for the Detection of Heavy Metal Ions
by Angela Malara, Antonio Fotia, Emilia Paone and Giulia Serrano
Materials 2021, 14(11), 3000; https://doi.org/10.3390/ma14113000 - 1 Jun 2021
Cited by 9 | Viewed by 3296
Abstract
Contamination by heavy metals is currently one of the most environmental concerns especially due to the toxicity, pervasiveness, and persistence of these substances. As they are not biodegradable, heavy metals are harmful not only for water, air, and soil but also for human [...] Read more.
Contamination by heavy metals is currently one of the most environmental concerns especially due to the toxicity, pervasiveness, and persistence of these substances. As they are not biodegradable, heavy metals are harmful not only for water, air, and soil but also for human health, even in very low traces. There is therefore a pressing need to develop an efficient, economic, and rapid analysis method to be applied in a wide range of conditions and able to detect very low contaminants concentrations. Currently, the most novel solution in this field is represented by the combination of electrospun nanofibers and highly sensitive electrochemical techniques. It has been proved that nanofibers, due to their outstanding properties, perfectly fit as sensing material when trace concentrations of heavy metals were investigated by anodic stripping voltammetry, envisaged as the most sensitive electrochemical technique for this kind of measurements. This work aims to provide an overview of the latest trends in the detection of contaminants by the simultaneous use of electrospun fibers and anodic stripping voltammetry. Indeed, a clear and comprehensive vision of the current status of this research may drive future improvements and new challenges. Full article
(This article belongs to the Special Issue Synthesis and Characterization of Nanomaterials for Electrochemical Applications)
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