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Nanocarbon-Based Hybrid Materials for Energy Storage Devices
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Nanocarbon-Based Hybrid Materials for Energy Storage Devices

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Electronic Materials".

Deadline for manuscript submissions: closed (31 December 2020) | Viewed by 10340

Special Issue Editor

Prof. Dr. Hirofumi Yoshikawa

E-Mail Website
Guest Editor
Department of Material Science, School of Engineering, Kwansei Gakuin University, Gakuen 2-1, Sanda 669-1337, Japan
Interests: battery; ionics; nanomaterials; electrochemistry

Special Issue Information

Dear Colleagues,

To address the grand challenges relating to energy and the environment, there is a strong incentive to develop renewable energy conversion and storage devices with sustainable materials. Nanocarbons, such as carbon nanotubes, nanoporous carbons, carbon nanofibers, carbon nanoparticles and graphene based hybrid materials have attracted tremendous interests as energy materials owing to their high specific surface area, excellent electrical and mechanical properties. This Special Issue will focus on recent research and developments of all kinds of carbon hybrid materials for energy storage. These development include hybrid materials for Li-ion batteries, Li-S Batteries, Na-ion batteries, and supercapacitors.

It is my pleasure to invite you to submit a manuscript for this Special Issue. Manuscripts in the form of full research papers, communications or reviews are all welcome.

Kind regards,

Prof. Dr. Hirofumi Yoshikawa
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

  • graphene
  • carbon nanotube
  • nanoporous carbon
  • Li-ion batteries
  • Li-S batteries
  • supercapacitor

Published Papers (4 papers)

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Research

11 pages, 6304 KiB  
Article
Selective Phosphorization Boosting High-Performance NiO/Ni2Co4P3 Microspheres as Anode Materials for Lithium Ion Batteries
by Ji Yan, Xin-Bo Chang, Xiao-Kai Ma, Heng Wang, Yong Zhang, Ke-Zheng Gao, Hirofumi Yoshikawa and Li-Zhen Wang
Materials 2021, 14(1), 24; https://doi.org/10.3390/ma14010024 - 23 Dec 2020
Cited by 2 | Viewed by 1742
Abstract
Phosphorization of metal oxides/hydoxides to promote electronic conductivity as a promising strategy has attracted enormous attention for improving the electrochemical properties of anode material in lithium ion batteries. For this article, selective phosphorization from NiCo2O4 to NiO/Ni2Co4 [...] Read more.
Phosphorization of metal oxides/hydoxides to promote electronic conductivity as a promising strategy has attracted enormous attention for improving the electrochemical properties of anode material in lithium ion batteries. For this article, selective phosphorization from NiCo2O4 to NiO/Ni2Co4P3 microspheres was realized as an efficient route to enhance the electrochemical lithium storage properties of bimetal Ni-Co based anode materials. The results show that varying phosphorizaed reagent amount can significantly affect the transformation of crystalline structure from NiCo2O4 to intermediate NiO, hybrid NiO/Ni2Co4P3, and, finally, to Ni2Co4P3, during which alterated sphere morphology, shifted surface valance, and enhanced lithium-ion storage behavior are detected. The optimized phosphorization with 1:3 reagent mass ratio can maintain the spherical architecture, hold hybrid crystal structure, and improve the reversibly electrochemical lithium-ion storage properties. A specific capacity of 415 mAh g−1 is achieved at 100 mA g−1 specific current and maintains at 106 mAh g−1 when the specific current increases to 5000 mA g−1. Even after 200 cycles at 500 mA g−1, the optimized electrode still delivers 224 mAh g−1 of specific capacity, exhibiting desirable cycling stability. We believe that understanding of such selective phosphorization can further evoke a particular research enthusiasm for anode materials in lithium ion battery with high performances. Full article
(This article belongs to the Special Issue Nanocarbon-Based Hybrid Materials for Energy Storage Devices)
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12 pages, 2872 KiB  
Article
Preparation and Carbon-Dependent Supercapacitive Behaviour of Nanohybrid Materials between Polyoxometalate and Porous Carbon Derived from Zeolitic Templates
by Heng Wang, Takeshi Shimizu and Hirofumi Yoshikawa
Materials 2020, 13(1), 81; https://doi.org/10.3390/ma13010081 - 22 Dec 2019
Cited by 4 | Viewed by 2404
Abstract
An electrochemical cell combining the energy storage characteristics of the chemical redox reaction and a physical capacitor effect presents advantages including high energy and power densities, and long durability. In this study, we prepared nanohybrid materials between polyoxometalate (POM) and porous carbon, which [...] Read more.
An electrochemical cell combining the energy storage characteristics of the chemical redox reaction and a physical capacitor effect presents advantages including high energy and power densities, and long durability. In this study, we prepared nanohybrid materials between polyoxometalate (POM) and porous carbon, which have different porous structures and pore sizes, using different zeolitic templates. The POM molecules were loaded inside the porous carbon, and these POM/carbon nanohybrid materials were used as cathode active materials for lithium–ion batteries (LIBs). The performance of these molecular cluster batteries (MCBs) was significantly dependent on the porous carbon. Operando X-ray absorption fine structure (XAFS) and 7Li solid-state nuclear magnetic resonance (NMR) measurements of the POM/carbon-MCBs revealed that three-dimensional porous carbon with high surface areas can improve the performance. The results highlight the remarkable performance of porous carbon with a three-dimensionally-linked pore network structure as an additive for supercapacitors to realise high-performance energy storage devices. Full article
(This article belongs to the Special Issue Nanocarbon-Based Hybrid Materials for Energy Storage Devices)
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Graphical abstract

16 pages, 6919 KiB  
Article
A Unique Strategy for Polyethylene Glycol/Hybrid Carbon Foam Phase Change Materials: Morphologies, Thermal Properties, and Energy Storage Behavior
by Xiaolong Su, Shikui Jia, Guowei Lv and Demei Yu
Materials 2018, 11(10), 2011; https://doi.org/10.3390/ma11102011 - 17 Oct 2018
Cited by 18 | Viewed by 3057
Abstract
Polyethylene glycol (PEG)/hybrid carbon foam (CF) phase change materials (PCMs) were prepared by integrating PEG into CF via dynamic-vacuum impregnation. The hybrid CF was first synthesized by mixtures of graphene oxide (GO) and carbon nanotubes (CNTs) with different volume ratios. The morphologies, chemical [...] Read more.
Polyethylene glycol (PEG)/hybrid carbon foam (CF) phase change materials (PCMs) were prepared by integrating PEG into CF via dynamic-vacuum impregnation. The hybrid CF was first synthesized by mixtures of graphene oxide (GO) and carbon nanotubes (CNTs) with different volume ratios. The morphologies, chemical structures, thermal conductivities, shape-stabilization levels, and photo-thermal energy conversion levels of these composite PCMs were characterized systematically. The prepared composite PCMs exhibited good shape-stabilization levels and showed their original shapes without any PEG leakage. It was found that the polyethylene glycol/carbon foam with multi-walled carbon nanotubes (PEG/MCF) composite PCMs had a better shape-stable performance below the temperature of 250 °C, and the thermal conductivity of the PEG/MCF composite PCMs reached as high as 1.535 W/(mK), which was obviously higher than that of polyethylene glycol/carbon foam with single-walled carbon nanotubes (PEG/SCF, 1.159 W/(mK)). The results of the photo-thermal simulation tests showed that the composite PCMs had the ability to absorb light energy and then convert it to thermal energy, and the maximum thermal energy storage efficiency of the PEG/MCF composite PCMs and the PEG/SCF composite PCMs was 92.1% and 90.6%, respectively. It was considered that a valuable technique to produce high-performance composite PCMs was developed. Full article
(This article belongs to the Special Issue Nanocarbon-Based Hybrid Materials for Energy Storage Devices)
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11 pages, 3342 KiB  
Article
Electrochemical Measurements of Multiwalled Carbon Nanotubes under Different Plasma Treatments
by Zulaiha Abdul Rahim, Nor Azah Yusof, Muhammad Aniq Shazni Mohammad Haniff, Faruq Mohammad, Mohd Ismahadi Syono and Nurulhaidah Daud
Materials 2018, 11(10), 1902; https://doi.org/10.3390/ma11101902 - 07 Oct 2018
Cited by 4 | Viewed by 2558
Abstract
In the present work, we described the post-treatment effects of applying different plasma atmosphere conditions on the electrochemical performances of the multiwalled carbon nanotubes (MWCNTs). For the study, a composite of MWCNTs/Co/Ti was successfully grown on the silicon substrate and then pre-treated with [...] Read more.
In the present work, we described the post-treatment effects of applying different plasma atmosphere conditions on the electrochemical performances of the multiwalled carbon nanotubes (MWCNTs). For the study, a composite of MWCNTs/Co/Ti was successfully grown on the silicon substrate and then pre-treated with ammonia, oxygen and hydrogen plasma. The composite was characterized by making use of field emission scanning electron microscopy (FESEM) for the surface morphology and Raman spectroscopy for the functionalization. Further, the electrochemical measurements were performed with the use of the cyclic voltammetry (CV) applied in the 0.01 M potassium ferricyanide in 0.1 M KCl solution. On testing, the results indicated that the NH3-treated MWCNTs have the highest efficiency as compared to the other pretreatments and control. This increased performance of NH3 treated sample can be linked to the enhanced surface area of the composite, thereby improved adsorption and associated interaction with that of the analyte molecules at the electrodes. Further comparison of the electrode with that of commercial Dropsens electrodes provided the confirmation for the efficiency of the NH3/MWCNTs, thereby suggesting for the potentiality of applying the NH3 modified electrode towards electrochemical applications. Full article
(This article belongs to the Special Issue Nanocarbon-Based Hybrid Materials for Energy Storage Devices)
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