Dielectric Materials for Energy Storage, Energy Harvesting and Electrocaloric Applications

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: 31 August 2024 | Viewed by 1379

Special Issue Editors


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Guest Editor
Department of Physics (DFiS) & CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal
Interests: lead-free piezoelectric materials; ferroelectric and multiferroic materials: bulk, thin film, nanostructures; mechanical energy harvesting; electro/magnetocaloric effects; energy storage; nanoscale properties of functional materials via scanning probe techniques; ferroelectric liquid crystals
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Guest Editor
Centre for Mechanical Technology Automation (TEMA), Mechanical Engineering Department and Aveiro Institute of Nanotechnology (AIN), University of Aveiro, 3810-193 Aveiro, Portugal
Interests: material science; crystallography; nanotechnology; X-ray topography; X-ray dynamical diffraction; structure phase transitions under high pressure; thin films; domain and twinning structures; high-temperature superconductors; atomic force microscope of ceramics and ferroelectrics; organic ferroelectrics
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

We are pleased to announce the launch of a Special Issue on "Dielectric Materials for Energy Storage, Energy Harvesting and Electrocaloric Applications" in Coatings. This Special Issue aims to highlight the latest research and advancements in the field of dielectric materials, with a specific focus on their applications in energy storage, energy harvesting and electrocaloric applications.

Dielectric materials play a crucial role in various fields of science and technology, offering unique electrical and thermal properties that enable efficient energy manipulation and conversion. Their ability to store and release electrical energy, coupled with their insulating characteristics, makes them ideal for energy storage applications. In recent years, dielectric materials, such as polymers and ceramics, have shown great promise in developing high-performance capacitors and supercapacitors. These materials offer excellent dielectric properties, allowing for increased energy density, faster charging/discharging rates, and improved stability.

Furthermore, the Special Issue also highlights the emerging field of electrocaloric cooling, which utilizes the electric field-induced temperature changes in dielectric materials. Electrocaloric cooling offers a promising alternative to traditional refrigeration technologies by providing a more environmentally friendly and energy-efficient cooling mechanism.

We invite researchers and experts from academia, industry, and related disciplines to contribute their original research articles or reviews to this Special Issue. Topics of interest include, but are not limited to:

  • Novel dielectric materials for energy storage and capacitors;
  • Advances in thin film deposition techniques for dielectric materials;
  • Electrocaloric effect in dielectric materials for solid-state cooling;
  • Dielectric polymers for energy harvesting applications;
  • Nanogenerators based on dielectric materials for self-powered systems;
  • Characterization techniques for dielectric materials in energy applications.

We anticipate that this Special Issue will provide a platform for researchers to share their latest findings, exchange ideas and foster collaborations in the field of dielectric materials for energy-related applications. We look forward to receiving your valuable contributions and making this Special Issue a significant resource for the scientific community.

Dr. Indrani Coondoo
Dr. Igor Bdikin
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. 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.

Keywords

  • energy storage
  • electrocaloric cooling
  • energy harvesting
  • nanogenerator
  • polymers
  • thin films
  • ceramics

Published Papers (2 papers)

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Research

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13 pages, 15698 KiB  
Article
Performance and Properties of a Ti-Al Composite Anodic Oxide Film on AC-Etched Al Foil
by Chaolei Ban, Xiangjun Luo, Jinchao Sun, Qingxu Wu and Yibin Yin
Coatings 2023, 13(9), 1526; https://doi.org/10.3390/coatings13091526 - 30 Aug 2023
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Abstract
AC-etched aluminum foils for an Al electrolytic capacitor were covered with a TiO2 film by a sol–gel coating and then anodized to 25 V in an ammonium adipate solution. The structure, properties, and performance of the anodic oxide films were examined by [...] Read more.
AC-etched aluminum foils for an Al electrolytic capacitor were covered with a TiO2 film by a sol–gel coating and then anodized to 25 V in an ammonium adipate solution. The structure, properties, and performance of the anodic oxide films were examined by transmission electron microscopy (TEM), scanning electron microscopy (SEM), electrochemical impedance measurements (EIS), a general digital LCR meter, a TV characteristic tester, and multicycle pulse charging–discharging. It was found that the anodizing of aluminum coated with TiO2 films led to the formation of Al-Ti composite anodic oxide films, which consist of an outer Al-Ti composite oxide layer and an inner Al2O3 layer on the metal substrate. The capacitance (C25V) of the anodic oxide films formed on specimens with a TiO2 coating was about 10% larger than without a TiO2 coating. The specific resistance (Rox) of the Al-Ti composite film measured by EIS was lower than the blank one, accounting for a greater increase in the rise time (Tr) and a slight reduction in the withstand voltage (Vt). After hydration and a multicycle pulse charging–discharging destructive test, the Al-Ti composite anodic oxide film maintained the same good, comprehensive dielectric properties and performance as the blank one, thereby proving to be promising for acting as dielectric layers. Full article
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Review

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23 pages, 12069 KiB  
Review
Recent Progress in Electromagnetic Wave Absorption Coatings: From Design Principles to Applications
by Yang Jin, Haojie Yu, Yun Wang, Li Wang and Bohua Nan
Coatings 2024, 14(5), 607; https://doi.org/10.3390/coatings14050607 - 11 May 2024
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Abstract
It is essential to develop electromagnetic (EM) wave-absorbing materials with exceptional versatility to address a variety of applications, including anti-radar stealth, EM radiation protection, and EM interference shielding. EM wave absorption coatings, mainly composed of matrices and EM absorbers, have excellent practical performance. [...] Read more.
It is essential to develop electromagnetic (EM) wave-absorbing materials with exceptional versatility to address a variety of applications, including anti-radar stealth, EM radiation protection, and EM interference shielding. EM wave absorption coatings, mainly composed of matrices and EM absorbers, have excellent practical performance. Researchers have been developing advanced EM absorption coating with properties like thin, light, broadband, and anti-aging. This review summarizes the recent progress in EM absorption coatings, including the design principles, feedstocks, manufacturing techniques, performance evaluation methods, and applications. Finally, the current challenges and future research directions are discussed. Full article
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