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Preparation and Properties of Advanced Materials for Energy Storage Technologies
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Preparation and Properties of Advanced Materials for Energy Storage Technologies

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

Deadline for manuscript submissions: closed (20 January 2024) | Viewed by 5527

Special Issue Editor

Dr. Renata Costa

E-Mail Website
Guest Editor
Research Centre in Chemistry of University of Porto (CIQUP), Institute of Molecular Sciences (IMS), Porto, Portugal
Interests: ionic liquids; electric double layer; interfacial electrochemistry; capacitors; carbon; electrical properties; electrodes materials; biosensing; batteries; renewable energy; energy management
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

It is crucial for academia and industry to embrace research at the nexus of energy science and sustainability toward efficient, clean, ecological, and high-performance materials when it comes to pursuing energy storage (ES) and conversion systems produced from intermittent renewable resources. ES technologies have been developed to harvest/store energy and effectively deliver it for future use, bridging the gap between power production, demand, and supply. One of the main current worldwide challenges is the transition to cleaner and more renewable energy sources to achieve decarbonization. Both research and action are urgent to address the global societal energy crisis and climate change while raising awareness of environmental preservation.

These new ES devices seek a compromise between high performance (high energy and specific power, long life, and efficiency), low cost (abundant materials and not politically compromised), and sustainability (safe and environmentally friendly ES devices).

Innovative protocols are lacking to prepare and improve advanced materials to become more durable, more resistant, more respectful to the environment, and with increasingly interesting properties targeting new energy storage solutions. The progress of high-performance and robust materials involves a comprehensive knowledge of the complex phenomena that take place at the nanoscale. The nano/microstructure of materials plays an extremely important role: it defines the properties of a material, such as its stability or its flexibility, crucial to predicting the performance of a material, but also to formulate new ones.

The Special Issue has the objective of creating an international endeavor for academics, stakeholders, industrials, researchers, and scientists worldwide to publish results and proposals regarding the soundest topics related to advanced materials with great potential in energy storage applications.

Dr. Renata Costa
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

  • electrolytes
  • electrified interfaces
  • materials
  • energy storage
  • energy transition

Published Papers (4 papers)

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Research

12 pages, 4087 KiB  
Article
Ion Implantation Combined with Heat Treatment Enables Excellent Conductivity and Corrosion Resistance of Stainless Steel Bipolar Plates for Hydrogen Fuel Cells
by Ruijuan Wang, Li Ding, Yong Pan, Xin Zhang, Meng Yang and Chengfei Zhu
Materials 2024, 17(4), 779; https://doi.org/10.3390/ma17040779 - 06 Feb 2024
Viewed by 567
Abstract
316 L stainless steel is an ideal bipolar plate material for a proton exchange membrane fuel cell (PEMFC). However, the thickening of the passivation film on the stainless steel surface and the dissolution of corrosive ions during operation will affect the durability of [...] Read more.
316 L stainless steel is an ideal bipolar plate material for a proton exchange membrane fuel cell (PEMFC). However, the thickening of the passivation film on the stainless steel surface and the dissolution of corrosive ions during operation will affect the durability of the PEMFC. Herein, a heterogeneous layer is prepared on the surface of 316 L stainless steel through dual ion implantation of molybdenum ion and carbon ion combined with heat treatment to promote the corrosion resistance and conductivity of the bipolar plate. The ion implantation technique resulted in a uniform distribution of Mo and C elements on the surface of 316 L stainless steel, with a modified layer depth of about 70–80 nm. The electrical conductivity of the ion implanted samples was significantly improved, and the interfacial contact resistance was reduced from 464.25 mΩ × cm2 to 42.49 mΩ × cm2. Heat treatment enhances the surface homogenization, repairs the defects of irradiation damage, and improves the corrosion resistance of stainless steel. The corrosion current density of (Mo+C)-600 samples decreased from 1.21 × 10−8 A/cm2 to 2.95 × 10−9 A/cm2 under the long-term corrosion condition of 4 h. These results can provide guidance for the modification of stainless steel bipolar plates. Full article
(This article belongs to the Special Issue Preparation and Properties of Advanced Materials for Energy Storage Technologies)
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13 pages, 6750 KiB  
Article
Optimization and Microstructural Studies on the Machining of Inconel 600 in WEDM Using Untreated and Cryogenically Treated Zinc Electrodes
by Satyanarayana Kosaraju, Phaneendra Babu Bobba and Surender Reddy Salkuti
Materials 2023, 16(8), 3181; https://doi.org/10.3390/ma16083181 - 18 Apr 2023
Cited by 6 | Viewed by 1044
Abstract
Any industry that manufactures dies, punches, molds, and machine components from difficult-to-cut materials, such as Inconel, titanium, and other super alloys, largely relies on wire electrical discharge machining (WEDM). In the current study, the effect of the WEDM process parameters on Inconel 600 [...] Read more.
Any industry that manufactures dies, punches, molds, and machine components from difficult-to-cut materials, such as Inconel, titanium, and other super alloys, largely relies on wire electrical discharge machining (WEDM). In the current study, the effect of the WEDM process parameters on Inconel 600 alloy with untreated zinc and cryogenically treated zinc electrodes was investigated. The controllable parameters included the current (IP), pulse-on time (Ton), and pulse-off time (Toff), whereas the wire diameter, workpiece diameter, dielectric fluid flow rate, wire feed rate, and cable tension were held constant throughout the experiments. The significance of these parameters on the material removal rate (MRR) and surface roughness (Ra) was established using the analysis of the variance. The experimental data acquired using the Taguchi analysis were used to analyze the level of influence of each process parameter on a particular performance characteristic. Their interactions with the pulse-off time were identified as the most influential process parameter on the MRR and Ra in both cases. Furthermore, a microstructural analysis was also performed via scanning electron microscopy (SEM) to examine the recast layer thickness, micropores, cracks, depth of metal, pitching of metal, and electrode droplets over the workpiece surface. In addition, energy-dispersive X-ray spectroscopy (EDS) was also carried out for the quantitative and semi-quantitative analyses of the work surface and electrodes after machining. Full article
(This article belongs to the Special Issue Preparation and Properties of Advanced Materials for Energy Storage Technologies)
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20 pages, 4759 KiB  
Article
Chitins from Seafood Waste as Sustainable Porous Carbon Precursors for the Development of Eco-Friendly Supercapacitors
by Ana T. S. C. Brandão, Renata Costa, Sabrina State, Pavel Potorac, Catarina Dias, José A. Vázquez, Jesus Valcarcel, A. Fernando Silva, Marius Enachescu and Carlos M. Pereira
Materials 2023, 16(6), 2332; https://doi.org/10.3390/ma16062332 - 14 Mar 2023
Cited by 3 | Viewed by 2303
Abstract
Carbon materials derived from marine waste have been drawing attention for supercapacitor applications. In this work, chitins from squid and prawn marine wastes were used as carbon precursors for further application as electrodes for energy storage devices. Chitins were obtained through a deproteinization [...] Read more.
Carbon materials derived from marine waste have been drawing attention for supercapacitor applications. In this work, chitins from squid and prawn marine wastes were used as carbon precursors for further application as electrodes for energy storage devices. Chitins were obtained through a deproteinization method based on enzymatic hydrolysis as an alternative to chemical hydrolysis as commonly presented in the literature. The obtained porous carbons were characterized using a BET surface area analyzer to determine the specific surface area and pore size, as well as scanning electron microscopy (SEM) with energy dispersive X-ray analysis (EDX), transmission electron microscopy (TEM), Raman spectroscopy, attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy, X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS), to characterize their morphology, composition, and structure. The electrochemical characterization was performed using a glassy carbon (GC) electrode modified with marine waste-based porous carbons as the working electrode through cyclic voltammetry and galvanostatic charge/discharge using ethaline, a choline chloride-based deep eutectic solvent (DES), as an eco-friendly and sustainable electrolyte. Squid and prawn chitin-based carbons presented a surface area of 149.3 m2 g−1 and 85.0 m2 g−1, pore volume of 0.053 cm3 g−1 and 0.029 cm3 g−1, and an associated specific capacitance of 20 and 15 F g−1 at 1 A g−1, respectively. Preliminary studies were performed to understand the effect of -OH groups on the chitin-based carbon surface with DES as an electrolyte, as well as the effect of aqueous electrolytes (1 mol L−1 sulphuric acid (H2SO4) and 1 mol L−1 potassium hydroxide (KOH)) on the capacitance and retention of the half-cell set up. It is provided, for the first time, the use of chitin-based carbon materials obtained through a one-step carbonization process combined with an eco-friendly DES electrolyte for potential application in energy storage devices. Full article
(This article belongs to the Special Issue Preparation and Properties of Advanced Materials for Energy Storage Technologies)
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12 pages, 4624 KiB  
Article
One-Step Engineering Carbon Supported Magnetite Nanoparticles Composite in a Submicron Pomegranate Configuration for Superior Lithium-Ion Storage
by Mengyao Tu, Chun Yang, Rui Zhang, Xiangli Kong, Ruixin Jia, Longbiao Yu and Binghui Xu
Materials 2023, 16(1), 313; https://doi.org/10.3390/ma16010313 - 29 Dec 2022
Cited by 1 | Viewed by 1058
Abstract
In this work, magnetite nanoparticles (Fe3O4) that are well dispersed by a submicron sized carbon framework in a pomegranate shape are engineered using a flexible one-step spray pyrolysis strategy. Under inert gas atmosphere, the homogeneously mixed Fe3+ ions [...] Read more.
In this work, magnetite nanoparticles (Fe3O4) that are well dispersed by a submicron sized carbon framework in a pomegranate shape are engineered using a flexible one-step spray pyrolysis strategy. Under inert gas atmosphere, the homogeneously mixed Fe3+ ions and chitosan (CS) molecules are in situ transformed to Fe3O4 nanoparticles and spherical nitrogen-doped carbon coating domains, respectively. Moreover, the obtained Fe3O4@C composite exhibits a unique submicron sized pomegranate configuration, in which favorable electric/ionic pathways have been constructed and the Fe3O4 nanoparticles have been effectively dispersed. When used as an anode electrochemical active material, the Fe3O4@C composite exhibits impressive lithium-ion storage capabilities, and maintains a reversible capacity of 500.2 mAh·g−1 after 500 cycles at a high current density of 1000 mA·g−1 as well as good rate capability. The strategy in this work is straightforward and effective, and the synthesized Fe3O4@C material has good potential in wider applications. Full article
(This article belongs to the Special Issue Preparation and Properties of Advanced Materials for Energy Storage Technologies)
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