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Energies
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Advanced and Sustainable Materials for Energy Conversion and Storage
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Advanced and Sustainable Materials for Energy Conversion and Storage

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "D: Energy Storage and Application".

Deadline for manuscript submissions: closed (16 October 2023) | Viewed by 4192

Special Issue Editor

Prof. Dr. Veerle Vandeginste

E-Mail Website
Guest Editor
Department of Materials Engineering, KU Leuven–Bruges, 8200 Bruges, Belgium
Interests: sustainability; functional materials; polymers; physical chemistry of material interfaces; energy conversion and storage
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The burning of fossil fuels has contributed to global warming due to the high emissions of carbon dioxide greenhouse gas into the atmosphere. Furthermore, fossil fuels are finite resources, and hence, transitioning towards clean, renewable energy resources is required. Because of the intermittent nature of solar and wind energy, there is a significant need for energy storage. For the use of alternative fuels, such as hydrogen, efficient water electrolysis processes are key to producing hydrogen. Therefore, the development of advanced and sustainable materials for energy conversion and storage is crucial.

The Special Issue aims to present and disseminate the most recent advances in energy conversion and storage materials, such as supercapacitors, battery materials, electrocatalysts, etc., with a focus on designing and developing the structures and understanding the mechanisms at material interfaces (e.g., the electrode–electrolyte interface) and their relationship with performance.

The topics of interest that will be covered in this Special Issue include, but are not limited to, the following:

  • Polymers for flexible batteries;
  • Cellulose materials for energy conversion and storage applications;
  • Bio-based ordered carbon materials for supercapacitors;
  • Battery electrode structural design;
  • Sustainable battery electrode materials;
  • Sustainable electrolytes;
  • Electrolyte additives;
  • Electrocatalysts;
  • Materials for water splitting.

Prof. Dr. Veerle Vandeginste
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. Energies 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

  • batteries
  • supercapacitors
  • wearables
  • electrodes
  • electrolyte
  • electrocatalysts
  • cellulose
  • bio-based carbon
  • polymer
  • structural design
  • interface

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Further information on MDPI's Special Issue polices can be found here.

Published Papers (2 papers)

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Research

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15 pages, 2818 KiB  
Article
European Green Deal: An Experimental Study of the Biomass Filtration Combustion in a Downdraft Gasifier
by Gennadii Golub, Nataliya Tsyvenkova, Savelii Kukharets, Anna Holubenko, Ivan Omarov, Oleksandra Klymenko, Krzysztof Mudryk and Taras Hutsol
Energies 2023, 16(22), 7490; https://doi.org/10.3390/en16227490 - 8 Nov 2023
Cited by 1 | Viewed by 1073
Abstract
This study presents the experimental results obtained from hybrid filtration combustion using biomass pellets. The experiments were carried out using a porous media gasifier filled with pellets and inert material. The gasifying agent used was an air–steam mixture, with 40% being steam. The [...] Read more.
This study presents the experimental results obtained from hybrid filtration combustion using biomass pellets. The experiments were carried out using a porous media gasifier filled with pellets and inert material. The gasifying agent used was an air–steam mixture, with 40% being steam. The dependence of the temperature in the gasifier’s reaction zone from the volume percentage of inert porous material in the gasifier, the specific heat capacity of this material, as well as the air–steam blowing rate, was investigated. The multifactor experiment method was used. A maximum temperature of 1245 °C was achieved using 28 vol% of porous material with a heat capacity of 1000 J/(kg·°C) and at a blowing rate of 42 m3/h. The maximum hydrogen content in the syngas was 28 vol%. This was achieved at an air–steam blowing rate of 42 m3/h and 40 vol% porous material, with a heat capacity of 1000 J/(kg·°C). The calorific value of the syngas was 12.6 MJ/m3. The highest CO content in the gas was 28 vol% and was obtained at 20 vol% porous material with a heat capacity of 1000 J/(kg·°C) and a blowing rate of 42 m3/h. The obtained information is applicable in the design, management, and control of gas production by way of a hybrid filtration combustion process in a downdraft gasifier. Full article
(This article belongs to the Special Issue Advanced and Sustainable Materials for Energy Conversion and Storage)
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Review

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34 pages, 9225 KiB  
Review
A Review of the Synthesis of Biopolymer Hydrogel Electrolytes for Improved Electrode–Electrolyte Interfaces in Zinc-Ion Batteries
by Veerle Vandeginste and Junru Wang
Energies 2024, 17(2), 310; https://doi.org/10.3390/en17020310 - 8 Jan 2024
Cited by 4 | Viewed by 2820
Abstract
The market for electric vehicles and portable and wearable electronics is expanding rapidly. Lithium-ion batteries currently dominate the market, but concerns persist regarding cost and safety. Consequently, alternative battery chemistries are investigated, with zinc-ion batteries (ZIBs) emerging as promising candidates due to their [...] Read more.
The market for electric vehicles and portable and wearable electronics is expanding rapidly. Lithium-ion batteries currently dominate the market, but concerns persist regarding cost and safety. Consequently, alternative battery chemistries are investigated, with zinc-ion batteries (ZIBs) emerging as promising candidates due to their favorable characteristics, including safety, cost-effectiveness, theoretical volumetric capacity, energy density, and ease of manufacturing. Hydrogel electrolytes stand out as advantageous for ZIBs compared to aqueous electrolytes. This is attributed to their potential application in flexible batteries for wearables and their beneficial impact in suppressing water-induced side reactions, zinc dendrite formation, electrode dissolution, and the risk of water leakage. The novelty of this review lies in highlighting the advancements in the design and synthesis of biopolymer hydrogel electrolytes in ZIBs over the past six years. Notable biopolymers include cellulose, carboxymethyl cellulose, chitosan, alginate, gelatin, agar, and gum. Also, double-network and triple-network hydrogel electrolytes have been developed where biopolymers were combined with synthetic polymers, in particular, polyacrylamide. Research efforts have primarily focused on enhancing the mechanical properties and ionic conductivity of hydrogel electrolytes. Additionally, there is a concerted emphasis on improving the electrochemical performance of semi-solid-state ZIBs. Moreover, some studies have delved into self-healing and adhesive properties, anti-freezing characteristics, and the multifunctionality of hydrogels. This review paper concludes with perspectives on potential future research directions. Full article
(This article belongs to the Special Issue Advanced and Sustainable Materials for Energy Conversion and Storage)
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