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Nanomaterials
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State-of-the-Art Nanomaterials for Energy Storage: Batteries, Solar Cells, Supercapacitors
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State-of-the-Art Nanomaterials for Energy Storage: Batteries, Solar Cells, Supercapacitors

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Solar Energy and Solar Cells".

Deadline for manuscript submissions: closed (30 June 2022) | Viewed by 16709

Special Issue Editors

Prof. Jung Sang Cho

E-Mail Website
Guest Editor
Department of Engineering Chemistry, Chungbuk National University, Chungbuk 361-763, Korea
Interests: energy storage; nanostructures; nanomaterials; batteries; supercapacitors
Special Issues, Collections and Topics in MDPI journals
Dr. Chungyeon Cho

E-Mail Website
Guest Editor
Department of Carbon Convergence Engineering, College of Engineering, Wonkwang University, Iksan 54538, Jeonbuk, Korea
Interests: polymer nanocomposites; thin films; energy harvesting; thermoelectricity; flame retardant
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Over the past few years, the design and synthesis of nanostructured materials have been of tremendous research interest for the energy-related systems, focusing on wearable sensors and self-powered energy sources. Nanomaterials hold promising potency for energy storage such as batteries, solar cells, and supercapacitors. Considering the ever-increasing global energy consumption and depletion of unsustainable fossil fuel energy, the energy conversion system and storage devices are highly demanding.

Given the strong academic interest in nanomaterials-based energy storage, we invite authors to contribute all topics related to functional energy nanomaterials, with an emphasis on the fabrication, properties, and prospective applications of 1D- or 2D-based energy systems in the forms of reviews, communications, and academic articles. The topics cover a wide range of research fields, both from theoretical approaches and application fields, including batteries, solar cells, and supercapacitors.

Prof. Jung Sang Cho
Prof. Chungyeon Cho
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. 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

  • Energy storage
  • Nanomaterials
  • Solar cells
  • Supercapacitors
  • Battery
  • Energy harvesting
  • Carbon nanomaterials
  • Multifunctional materials

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Published Papers (4 papers)

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Research

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11 pages, 7145 KiB  
Article
Morphological and Electrochemical Properties of ZnMn2O4 Nanopowders and Their Aggregated Microspheres Prepared by Simple Spray Drying Process
by Gi Dae Park, Yun Chan Kang and Jung Sang Cho
Nanomaterials 2022, 12(4), 680; https://doi.org/10.3390/nano12040680 - 18 Feb 2022
Cited by 8 | Viewed by 2427
Abstract
Phase-pure ZnMn2O4 nanopowders and their aggregated microsphere powders for use as anode material in lithium-ion batteries were obtained by a simple spray drying process using zinc and manganese salts as precursors, followed by citric acid post-annealing at different temperatures. X-ray [...] Read more.
Phase-pure ZnMn2O4 nanopowders and their aggregated microsphere powders for use as anode material in lithium-ion batteries were obtained by a simple spray drying process using zinc and manganese salts as precursors, followed by citric acid post-annealing at different temperatures. X-ray diffraction (XRD) analysis indicated that phase-pure ZnMn2O4 powders were obtained even at a low post-annealing temperature of 400 °C. The post-annealed powders were transformed into nanopowders by simple milling process, using agate mortar. The mean particle sizes of the ZnMn2O4 powders post-treated at 600 and 800 °C were found to be 43 and 85 nm, respectively, as determined by TEM observation. To provide practical utilization, the nanopowders were transformed into aggregated microspheres consisting of ZnMn2O4 nanoparticles by a second spray drying process. Based on the systematic analysis, the optimum post-annealing temperature required to obtain ZnMn2O4 nanopowders with high capacity and good cycle performance was found to be 800 °C. Moreover, aggregated ZnMn2O4 microsphere showed improved cycle stability. The discharge capacities of the aggregated microsphere consisting of ZnMn2O4 nanoparticles post-treated at 800 °C were 1235, 821, and 687 mA h g−1 for the 1st, 2nd, and 100th cycles at a high current density of 2.0 A g−1, respectively. The capacity retention measured after the second cycle was 84%. Full article
(This article belongs to the Special Issue State-of-the-Art Nanomaterials for Energy Storage: Batteries, Solar Cells, Supercapacitors)
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19 pages, 4494 KiB  
Article
Comparative Study of the Structural Features and Electrochemical Properties of Nitrogen-Containing Multi-Walled Carbon Nanotubes after Ion-Beam Irradiation and Hydrochloric Acid Treatment
by Petr M. Korusenko, Sergey N. Nesov, Anna A. Iurchenkova, Ekaterina O. Fedorovskaya, Valery V. Bolotov, Sergey N. Povoroznyuk, Dmitry A. Smirnov and Alexander S. Vinogradov
Nanomaterials 2021, 11(9), 2163; https://doi.org/10.3390/nano11092163 - 24 Aug 2021
Cited by 21 | Viewed by 3080
Abstract
Using a set of microscopic, spectroscopic, and electrochemical methods, a detailed study of the interrelation between the structural and electrochemical properties of the as-prepared nitrogen-containing multi-walled carbon nanotubes (N-MWCNTs) and their modified derivatives is carried out. It was found that after treatment of [...] Read more.
Using a set of microscopic, spectroscopic, and electrochemical methods, a detailed study of the interrelation between the structural and electrochemical properties of the as-prepared nitrogen-containing multi-walled carbon nanotubes (N-MWCNTs) and their modified derivatives is carried out. It was found that after treatment of nanotubes with hydrochloric acid, their structure is improved by removing amorphous carbon from the outer layers of N-MWCNTs. On the contrary, ion bombardment leads to the formation of vacancy-type structural defects both on the surface and in the bulk of N-MWCNTs. It is shown that the treated nanotubes have an increased specific capacitance (up to 27 F·g−1) compared to the as-prepared nanotubes (13 F·g−1). This is due to an increase in the redox capacitance. It is associated with the reversible Faraday reactions with the participation of electrochemically active pyridinic and pyrrolic nitrogen inclusions and oxygen-containing functional groups (OCFG). Based on the comparison between cyclic voltammograms of N-MWCNTs treated in HCl and with an ion beam, the peaks on these curves were separated and assigned to specific nitrogen inclusions and OCFGs. It is shown that the rate of redox reactions with the participation of OCFGs is significantly higher than that of reactions with nitrogen inclusions in the pyridinic and pyrrolic forms. Moreover, it was established that treatment of N-MWCNTs in HCl is accompanied by a significant increase in the activity of nitrogen centers, which, in turn, leads to an increase in the rate of redox reactions involving OCFGs. Due to the significant contribution of redox capacitance, the obtained results can be used to develop supercapacitors with increased total specific capacitance. Full article
(This article belongs to the Special Issue State-of-the-Art Nanomaterials for Energy Storage: Batteries, Solar Cells, Supercapacitors)
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Review

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30 pages, 7175 KiB  
Review
Application of Graphene Nanoplatelets in Supercapacitor Devices: A Review of Recent Developments
by Eleri Anne Worsley, Serena Margadonna and Paolo Bertoncello
Nanomaterials 2022, 12(20), 3600; https://doi.org/10.3390/nano12203600 - 13 Oct 2022
Cited by 16 | Viewed by 4048
Abstract
As worldwide energy consumption continues to increase, so too does the demand for improved energy storage technologies. Supercapacitors are energy storage devices that are receiving considerable interest due to their appealing features such as high power densities and much longer cycle lives than [...] Read more.
As worldwide energy consumption continues to increase, so too does the demand for improved energy storage technologies. Supercapacitors are energy storage devices that are receiving considerable interest due to their appealing features such as high power densities and much longer cycle lives than batteries. As such, supercapacitors fill the gaps between conventional capacitors and batteries, which are characterised by high power density and high energy density, respectively. Carbon nanomaterials, such as graphene nanoplatelets, are being widely explored as supercapacitor electrode materials due to their high surface area, low toxicity, and ability to tune properties for the desired application. In this review, we first briefly introduce the theoretical background and basic working principles of supercapacitors and then discuss the effects of electrode material selection and structure of carbon nanomaterials on the performances of supercapacitors. Finally, we highlight the recent advances of graphene nanoplatelets and how chemical functionalisation can affect and improve their supercapacitor performance. Full article
(This article belongs to the Special Issue State-of-the-Art Nanomaterials for Energy Storage: Batteries, Solar Cells, Supercapacitors)
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28 pages, 6922 KiB  
Review
Transition Metal Oxide Electrode Materials for Supercapacitors: A Review of Recent Developments
by Ruibin Liang, Yongquan Du, Peng Xiao, Junyang Cheng, Shengjin Yuan, Yonglong Chen, Jian Yuan and Jianwen Chen
Nanomaterials 2021, 11(5), 1248; https://doi.org/10.3390/nano11051248 - 10 May 2021
Cited by 308 | Viewed by 17665
Abstract
In the past decades, the energy consumption of nonrenewable fossil fuels has been increasing, which severely threatens human life. Thus, it is very urgent to develop renewable and reliable energy storage devices with features of environmental harmlessness and low cost. High power density, [...] Read more.
In the past decades, the energy consumption of nonrenewable fossil fuels has been increasing, which severely threatens human life. Thus, it is very urgent to develop renewable and reliable energy storage devices with features of environmental harmlessness and low cost. High power density, excellent cycle stability, and a fast charge/discharge process make supercapacitors a promising energy device. However, the energy density of supercapacitors is still less than that of ordinary batteries. As is known to all, the electrochemical performance of supercapacitors is largely dependent on electrode materials. In this review, we firstly introduced six typical transition metal oxides (TMOs) for supercapacitor electrodes, including RuO2, Co3O4, MnO2, ZnO, XCo2O4 (X = Mn, Cu, Ni), and AMoO4 (A = Co, Mn, Ni, Zn). Secondly, the problems of these TMOs in practical application are presented and the corresponding feasible solutions are clarified. Then, we summarize the latest developments of the six TMOs for supercapacitor electrodes. Finally, we discuss the developing trend of supercapacitors and give some recommendations for the future of supercapacitors. Full article
(This article belongs to the Special Issue State-of-the-Art Nanomaterials for Energy Storage: Batteries, Solar Cells, Supercapacitors)
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