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Applied Sciences
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Research on Electrochemical Energy Storage and Energy Conversion/Evolution Materials and...
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Research on Electrochemical Energy Storage and Energy Conversion/Evolution Materials and Devices

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Energy Science and Technology".

Deadline for manuscript submissions: closed (20 October 2023) | Viewed by 3952

Special Issue Editors

Dr. Sagar Mane

E-Mail Website
Guest Editor
Department of Fiber System Engineering, Yeungnam University, Gyeongsan 38541, Gyeongbuk, Republic of Korea
Interests: energy storage materials; multiferroic materials
Prof. Dr. Rajneesh Kumar Mishra

E-Mail Website
Guest Editor
Department of Physics, Yeungnam University, Gyeongsan 38541, Gyeongbuk, Republic of Korea
Interests: energy storage devices; electrocatalytic water splitting; gas sensors
Dr. Jay Singh

E-Mail Website
Guest Editor
Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, UP, India
Interests: energy storage devices; electrocatalytic/photocatalytic water splitting; sensors
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The depletion of fossil fuels and fast-progressing technological innovations raises severe, global ecological and energy concerns. Therefore, the universal energy paradigm is swiftly bending from fossil fuels to sustainable renewable energy storage and zero-emission hydrogen energy generation sources.

Supercapacitors, a well-known electrochemical capacitor from the family of batteries, have triggered remarkable research interest because of their features, such as cost-effectiveness, fast charging ability, high power density, and long cycle span. The supercapacitor market will grow into a multi-billion-dollar business worldwide by the year 2041 and will cover nearly 10% of the battery market as per IDTechEx market reports.

Additionally, hydrogen is the most significant energy source due to its high efficiency, clean and green fuel, and high energy density, substituting traditional fossil fuel-based energy sources to achieve a zero-emission and pollution-free environment. South Korea and a few European countries have already opened hydrogen-filling fuel stations for vehicles. Toyota and Hyundai, etc., have produced hydrogen energy-operated vehicles for transportation.

We invite the prospective authors to submit research or review articles to this Special Issue of Applied Sciences before the deadline of 20 March 2023.

This Special Issue will publish high-quality reviews and original research papers, in the fields of:

  • Supercapacitors;
  • Energy storage devices;
  • Electrocatalytic hydrogen and oxygen evolution reactions;
  • Photocatalytic hydrogen generation.

Dr. Sagar Mane
Prof. Dr. Rajneesh Kumar Mishra
Dr. Jay Singh
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. Applied Sciences 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 2400 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
  • energy storage devices
  • electrocatalytic hydrogen and oxygen evolution reactions
  • photocatalytic hydrogen generation

Published Papers (2 papers)

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Research

19 pages, 6386 KiB  
Article
Shape Evolution of Indium Sulfide Heterostructures via Carbon Nanotube Scrambling: Towards Reliable Sustainability and Mitigating Leakage Current in Supercapacitors
by Niraj Kumar, Dhananjay Mishra, Seungyeob Kim, Krishnaiah Mokurala, Rajneesh Kumar Mishra, Junyoung Song and Sung Hun Jin
Appl. Sci. 2023, 13(5), 2958; https://doi.org/10.3390/app13052958 - 25 Feb 2023
Cited by 1 | Viewed by 1242
Abstract
For sustainable energy storage devices with long-term endurance, exploring novel electrode materials can be a realistic focus in the areas of robust structures, surface area control, high channel conductivity, and others. A composite of a hierarchical series of single-walled carbon nanotubes (SWNTs) with [...] Read more.
For sustainable energy storage devices with long-term endurance, exploring novel electrode materials can be a realistic focus in the areas of robust structures, surface area control, high channel conductivity, and others. A composite of a hierarchical series of single-walled carbon nanotubes (SWNTs) with In2S3 was synthesized by applying a simple one-step solvothermal method. A SWNT scaffold yields a good conductive pathway, leading to the improved electron transportation and catalytic behaviors. This promotes the robust formation of materials and their enhancement in surface activity and specific capacitance. Herein, the nucleated nanocomposites based on SWNT-mediated In2S3 improve the specific capacitance (1268 F·g−1 at 10 mVs−1) to a remarkable 92.4% of its capacitance even after 10,000 cycles, and furthermore, the robust cocoon-like structure of INS5 (5 mL SWNT doped in In2S3) shows an excellent 97.8% of cyclic retention (10,000 cycles). As a conceptual demonstration of system integration, the as-fabricated symmetric supercapacitor (SSC) device is successfully integrated into the Bluetooth/photoplethysmography (BLE/PPG) module for a wireless sensor network. These findings, through indium sulfides with SWNT scrambling, are expected to contribute to the next-generation solid-state-supercapacitor (SSC)-integrated module in the wireless health monitoring system. Full article
(This article belongs to the Special Issue Research on Electrochemical Energy Storage and Energy Conversion/Evolution Materials and Devices)
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17 pages, 3520 KiB  
Article
Geometrical Effect of Active Material on Electrode Tortuosity in All-Solid-State Lithium Battery
by So-Yeon Park, Jiung Jeong and Heon-Cheol Shin
Appl. Sci. 2022, 12(24), 12692; https://doi.org/10.3390/app122412692 - 11 Dec 2022
Cited by 8 | Viewed by 1988
Abstract
In this study, the effect of the active material geometry on the tortuosity in the ion transport path of the electrode composite of an all-solid-state lithium battery was systematically analyzed in terms of the different design and process factors of an electrode. A [...] Read more.
In this study, the effect of the active material geometry on the tortuosity in the ion transport path of the electrode composite of an all-solid-state lithium battery was systematically analyzed in terms of the different design and process factors of an electrode. A direct current technique (i.e., chronoamperometry) using an electron-blocking cell was used to analyze the tortuosity to minimize the experimental error. In addition, aluminum oxide was selected as a hypothetical active material in a composite electrode to exclude the possible disturbance of the ion transport signal caused by real active materials. The experimental results showed that the shape and composition of the active material had significant influences on the ion transport characteristics. In particular, when a fibrous material was applied with a high active material ratio, the degree of tortuosity was significantly increased, reaching values as high as 45, due to the insufficient filling in the micropores formed by particle aggregation. Moreover, the tortuosity degree decreased below 15 as the pressing pressure increased during electrode manufacturing, and the cause of this decrease differed with the active material’s particle shape. The analysis results confirmed that the change in tortuosity resulting from the electrode design factors of an all-solid-state battery has distinctive features compared to that for a conventional liquid electrolyte-based lithium-ion battery. Full article
(This article belongs to the Special Issue Research on Electrochemical Energy Storage and Energy Conversion/Evolution Materials and Devices)
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