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Nanomaterials
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Carbon-Based Nanomaterials for High-Performance Supercapacitors
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Carbon-Based Nanomaterials for High-Performance Supercapacitors

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "2D and Carbon Nanomaterials".

Deadline for manuscript submissions: closed (31 May 2023) | Viewed by 5671

Special Issue Editors

Prof. Dr. Bingqing Wei

E-Mail Website
Guest Editor
Department of Mechanical Engineering, University of Delaware, Newark, DE 19716, USA
Interests: nanomaterials; nanostructures; carbon nanomaterials; energy storage; energy conversion
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Xusheng Du

E-Mail Website
Guest Editor
Institute of Advanced Wear & Corrosion Resistance and Functional Materials, Jinan University, Guangzhou, China
Interests: polymer nanocomposites; fiber reinforced composites; Carbon Composites; electrochemistry
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

As a result of the fast technology development and rapid increment in world population, a constant increase in energy consumption is observed. Simultaneously, recent advances made in the field of nanotechnology enable new findings in the area of cutting edge nanomaterials, that were found to be able to tackle a lot of challenges within energy systems. Supercapacitors, as one of the important power devices, exhibit great potential for advanced high-performance future nanotechnologies. The supercapacitors have gained great research attention, resulted from their wide range of applications and advantages such as high energy and power density, micro-size, lightweight, and outstanding cycling stability. However, the essential issue is to constantly develop advanced electrode materials with improved charge storage capability. Therefore, the research on novel nanomaterials for applications in supercapacitor electrode technology becomes a key issue. Among studied nanomaterials, different types of carbon-based electrode nanomaterials (carbon nanotubes, graphene, carbon quantum dots, etc.) have been reported and showed great potential and advancement for application in supercapacitors. It was found that their unquestionable advantages such as high specific surface area, upright electrical conductivity, chemical and thermal stability, and the possibility of multiple methods for their chemical functionalization, as well as structural flexibility, allow nanostructured carbon materials to be emergent candidates for various electrochemical applications. Therefore this topic becomes innovative and attracts a growing amount of researchers.

We are pleased to invite authors to submit original communications, articles, and reviews on the carbon-based nanomaterials application in supercapacitors. The topic of this Special Issue includes but is not limited to advanced carbon-based nanomaterials and their fabrication methods for supercapacitors devices, showing recent developments in this area, as well as future implications and challenges.

Prof. Dr. Bingqing Wei
Prof. Dr. Xusheng Du
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

  • supercapacitors
  • micro-supercapacitors
  • carbon nanomaterials
  • graphene
  • carbon nanotubes
  • mxenes
  • carbon nanodots
  • carbon nanocomposites
  • hierarchically structured carbon materials
  • carbon electrochemistry
  • energy conversion and storage

 

Published Papers (4 papers)

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Research

14 pages, 7478 KiB  
Article
Facile Synthesis of Functionalized Porous Carbon by Direct Pyrolysis of Anacardium occidentale Nut-Skin Waste and Its Utilization towards Supercapacitors
by Raji Atchudan, Suguna Perumal, Ashok K. Sundramoorthy, Devaraj Manoj, Raju Suresh Kumar, Abdulrahman I. Almansour and Yong Rok Lee
Nanomaterials 2023, 13(10), 1654; https://doi.org/10.3390/nano13101654 - 16 May 2023
Cited by 3 | Viewed by 1223
Abstract
Preparing electrode materials plays an essential role in the fabrication of high-performance supercapacitors. In general, heteroatom doping in carbon-based electrode materials enhances the electrochemical properties. Herein, nitrogen, oxygen, and sulfur co-doped porous carbon (PC) materials were prepared by direct pyrolysis of Anacardium occidentale [...] Read more.
Preparing electrode materials plays an essential role in the fabrication of high-performance supercapacitors. In general, heteroatom doping in carbon-based electrode materials enhances the electrochemical properties. Herein, nitrogen, oxygen, and sulfur co-doped porous carbon (PC) materials were prepared by direct pyrolysis of Anacardium occidentale (AO) nut-skin waste for high-performance supercapacitor applications. The as-prepared AO-PC material possessed interconnected micropore/mesopore structures and exhibited a high specific surface area of 615 m2 g−1. The Raman spectrum revealed a moderate degree of graphitization of AO-PC materials. These superior properties of the as-prepared AO-PC material help to deliver high specific capacitance. After fabricating the working electrode, the electrochemical performances including cyclic voltammetry, galvanostatic charge–discharge, and electrochemical impedance spectroscopy measurements were conducted in 1 M H2SO4 aqueous solution using a three-electrode configuration for supercapacitor applications. The AO-PC material delivered a high specific capacitance of 193 F g−1 at a current density of 0.5 A g−1. The AO-PC material demonstrated <97% capacitance retention even after 10,000 cycles of charge–discharge at the current density of 5 A g−1. All the above outcomes confirmed that the as-prepared AO-PC from AO nut-skin waste via simple pyrolysis is an ideal electrode material for fabricating high-performance supercapacitors. Moreover, this work provides a cost-effective and environmentally friendly strategy for adding value to biomass waste by a simple pyrolysis route. Full article
(This article belongs to the Special Issue Carbon-Based Nanomaterials for High-Performance Supercapacitors)
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15 pages, 3691 KiB  
Article
Waste Citrus reticulata Assisted Preparation of Cobalt Oxide Nanoparticles for Supercapacitors
by Rishabh Srivastava, Shiva Bhardwaj, Anuj Kumar, Rahul Singhal, Jules Scanley, Christine C. Broadbridge and Ram K. Gupta
Nanomaterials 2022, 12(23), 4119; https://doi.org/10.3390/nano12234119 - 22 Nov 2022
Cited by 8 | Viewed by 1754
Abstract
The green, sustainable, and inexpensive creation of novel materials, primarily nanoparticles, with effective energy-storing properties, is key to addressing both the rising demand for energy storage and the mounting environmental concerns throughout the world. Here, an orange peel extract is used to make [...] Read more.
The green, sustainable, and inexpensive creation of novel materials, primarily nanoparticles, with effective energy-storing properties, is key to addressing both the rising demand for energy storage and the mounting environmental concerns throughout the world. Here, an orange peel extract is used to make cobalt oxide nanoparticles from cobalt nitrate hexahydrate. The orange peel extract has Citrus reticulata, which is a key biological component that acts as a ligand and a reducing agent during the formation of nanoparticles. Additionally, the same nanoparticles were also obtained from various precursors for phase and electrochemical behavior comparisons. The prepared Co-nanoparticles were also sulfurized and phosphorized to enhance the electrochemical properties. The synthesized samples were characterized using scanning electron microscopic and X-ray diffraction techniques. The cobalt oxide nanoparticle showed a specific capacitance of 90 F/g at 1 A/g, whereas the cobalt sulfide and phosphide samples delivered an improved specific capacitance of 98 F/g and 185 F/g at 1 A/g. The phosphide-based nanoparticles offer more than 85% capacitance retention after 5000 cycles. This study offers a green strategy to prepare nanostructured materials for energy applications. Full article
(This article belongs to the Special Issue Carbon-Based Nanomaterials for High-Performance Supercapacitors)
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10 pages, 3011 KiB  
Article
Ultra-Fine Ruthenium Oxide Quantum Dots/Reduced Graphene Oxide Composite as Electrodes for High-Performance Supercapacitors
by Jie Zhao, Jianmin Zhang, Hang Yin, Yuling Zhao, Guangxu Xu, Jinshi Yuan, Xiaoyao Mo, Jie Tang and Fengyun Wang
Nanomaterials 2022, 12(7), 1210; https://doi.org/10.3390/nano12071210 - 04 Apr 2022
Cited by 17 | Viewed by 2146
Abstract
This study synthesized ultra-fine nanometer-scaled ruthenium oxide (RuO2) quantum dots (QDs) on reduced graphene oxide (rGO) surface by a facile and rapid microwave-assisted hydrothermal approach. Benefiting from the synergistic effect of RuO2 and rGO, RuO2/rGO nanocomposite electrodes showed [...] Read more.
This study synthesized ultra-fine nanometer-scaled ruthenium oxide (RuO2) quantum dots (QDs) on reduced graphene oxide (rGO) surface by a facile and rapid microwave-assisted hydrothermal approach. Benefiting from the synergistic effect of RuO2 and rGO, RuO2/rGO nanocomposite electrodes showed ultra-high capacitive performance. The impact of different RuO2 loadings in RuO2/rGO nanocomposite on their electrochemical performance was investigated by various characterizations. The composite RG-2 with 38 wt.% RuO2 loadings exhibited a specific capacitance of 1120 F g−1 at 1 A g−1. In addition, it has an excellent capacity retention rate of 84 % from 1A g−1 to 10 A g−1, and excellent cycling stability of 89% retention after 10,000 cycles, indicating fast ion-involved redox reactions on the nanocomposite surfaces. These results illustrate that RuO2/rGO composites prepared by this facile process can be an ideal candidate electrode for high-performance supercapacitors. Full article
(This article belongs to the Special Issue Carbon-Based Nanomaterials for High-Performance Supercapacitors)
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15 pages, 4568 KiB  
Article
Preparation of Boron/Sulfur-Codoped Porous Carbon Derived from Biological Wastes and Its Application in a Supercapacitor
by Yanbin Wang, Dian Wang, Zhaoxia Li, Qiong Su, Shuai Wei, Shaofeng Pang, Xiangfei Zhao, Lichun Liang, Lihui Kang and Shijun Cao
Nanomaterials 2022, 12(7), 1182; https://doi.org/10.3390/nano12071182 - 01 Apr 2022
Cited by 14 | Viewed by 1995
Abstract
Abundant biomass resources are a good choice for preparing electrode materials for supercapacitors, but developing a versatile and simple synthetic method to convert them into electrode materials remains a challenge. In the present research, our team reports a promising strategy and cost-efficient method [...] Read more.
Abundant biomass resources are a good choice for preparing electrode materials for supercapacitors, but developing a versatile and simple synthetic method to convert them into electrode materials remains a challenge. In the present research, our team reports a promising strategy and cost-efficient method to fabricate boron/sulfur-codoped porous carbon from biomass sources, mainly utilizing four biomass materials. Detailed material characterization showed that the samples produced by this approach possess rich B and S doping. Additionally, the original biomass materials treated by activation produce abundant pores. Therefore, owing to the synergetic effect of abundant atomic doping and microporous/mesoporous distribution, the obtained carbon as electrode material manifested excellent specific capacitances of 290 F g−1 at a 0.5 A g−1 current density. Moreover, the specific energy of the prepared samples of the as-assembled symmetric supercapacitor is as high as 16.65 Wh kg−1 in 1 M Na2SO4, with a brilliant cyclical performance of only a 2.91% capacitance decay over 10,000 cycles. In addition, it has been verified universally that three other types of bio-wastes can also prepare electrode material using this method. This paper represents a significant attempt to turn waste biomass into treasure while also providing ideas for the design and preparation of supercapacitor electrode materials. Full article
(This article belongs to the Special Issue Carbon-Based Nanomaterials for High-Performance Supercapacitors)
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