Advances in Electrochemical Capacitors Materials and Thin Films

A special issue of Coatings (ISSN 2079-6412). This special issue belongs to the section "Surface Engineering for Energy Harvesting, Conversion, and Storage".

Deadline for manuscript submissions: closed (30 April 2023) | Viewed by 2603

Special Issue Editor


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Guest Editor
Department of Chemistry, Tennessee State University, 3500 John A Merritt Blvd, Nashville, TN 37209, USA
Interests: sensing materials; nanomaterials; nanoparticles; carbon nanotubes; sol-gel techniques; surface modification and/or functionalization; electro-polymerization; electrodeposition

Special Issue Information

Dear Colleagues,

The need for the development of high-power energy sources, such as electrochemical capacitors (ECs) is increasing. The performance of ECs depends on the chemical and physical properties of the electrode materials. ECs electrodes are generally thin-film coatings applied and electrically connected to a conductive, metallic current collector. For an ideal ECs electrode, materials with high conductivity, chemical and thermal stability, very high surface area per unit volume or mass, low-cost, and biocompatibility are desired. In this regard, various materials have been investigated, including carbon-based materials, conducting polymers, and transition-metal oxides.

The Special Issue focuses on advances in materials and thin-film coatings of ECs electrodes and explores synthesis/preparation, characterization, and application of these materials in energy storage.

The Special Issue is inviting work on synthesis/preparation, characterization techniques, and energy storage applications of materials and thin films. In addition to the original and unpublished research work, comprehensive reviews on relevant areas are welcome.

Should you need any further information, please feel free to email me or contact the journal. Thank you for considering sharing your novel research findings in this Special Issue of Coatings.

In particular, topics of interest include (but are not limited to) the following:

  • Carbon-based materials such as carbon nanotubes, graphene, carbon dots, etc.
  • Nanomaterials
  • Conducting polymers
  • Metal oxides
  • Energy storage
  • Electrochemical capacitors
  • Thin films
  • Coatings
  • Synthesis
  • Characterizations

Dr. Mulugeta Wayu
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. Coatings 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 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.

Published Papers (1 paper)

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Research

14 pages, 3941 KiB  
Article
Surface Modification of Commercial Cotton Yarn as Electrode for Construction of Flexible Fiber-Shaped Supercapacitor
by Wei Xiao, Jing Huang, Wenjie Zhou, Qinglin Jiang, Ying Deng, Yanhua Zhang and Liangliang Tian
Coatings 2021, 11(9), 1086; https://doi.org/10.3390/coatings11091086 - 08 Sep 2021
Cited by 12 | Viewed by 1924
Abstract
In this study, we report on the rational design and facile preparation of a cotton-reduced graphene oxide-silver nanoparticle (cotton-RGO-AgNP) hybrid fiber as an electrode for the building of a flexible fiber-shaped supercapacitor (FSSC). It was adequately characterized and found to possess a well-defined [...] Read more.
In this study, we report on the rational design and facile preparation of a cotton-reduced graphene oxide-silver nanoparticle (cotton-RGO-AgNP) hybrid fiber as an electrode for the building of a flexible fiber-shaped supercapacitor (FSSC). It was adequately characterized and found to possess a well-defined core−shell structure with cotton yarn as a core and a porous RGO-AgNP coating as a shell. Thanks to the unique morphological features and low electrical resistance (only 2.3 Ω·cm−1), it displayed attractive supercapacitive properties. When evaluated in a three-electrode setup, this FSSC electrode delivered the highest linear and volumetric specific capacitance of up to ca. 12.09 mF·cm−1 and ca. 9.67 F·cm−3 with a satisfactory rate capability as well as a decent cycling stability. On the other hand, an individual parallel symmetric FSSC cell constructed by this composite fiber fulfilled the largest linear and volumetric specific capacitance of ca. 1.67 mF·cm−1 and ca. 0.67 F·cm−3 and offered the maximum energy density, as high as ca. 93.1 μWh·cm−3, which outperformed a great number of graphene- and textile yarn-based FSSCs. Impressively, bending deformation brought about quite a limited effect on its electrochemical behaviors and almost no capacitance degradation took place during the consecutive charge/discharge test for over 10,000 cycles. Consequently, these remarkable performances suggest that the currently developed cotton-RGO-AgNP fiber has considerable application potential in flexible, portable and wearable electronics. Full article
(This article belongs to the Special Issue Advances in Electrochemical Capacitors Materials and Thin Films)
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