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Electrochemical Energy Conversion and Storage Processes

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A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Energy Systems".

Deadline for manuscript submissions: closed (25 January 2023) | Viewed by 19890

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Special Issue Editors

Dr. Suresh Kannan Balasingam

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Guest Editor

Graduate School of Energy and Environment (KU-KIST Green School), Korea University (KU), Seoul 136-713, Republic of Korea
Interests: electrochemistry; supercapacitors; batteries
Special Issues, Collections and Topics in MDPI journals

Dr. Mohammed Hussain Abdul Jabbar

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Guest Editor

University of Maryland, College Park MD 20742-2115, USA
Interests: solid oxide fuel cells; solid-state batteries; catalysts (oxygen reduction reaction/hydrogen oxidation reaction); supercapacitors; polymer light-emitting devices: solar cells

Dr. Sivaprakash Sengodan

E-Mail Website
Guest Editor

Department of Materials, Imperial College London, London SW7 2BU, UK
Interests: solid oxide fuel cells; proton ceramic fuel cells; oxygen reduction reactions; hydrogen oxidation reactions; metal–air batteries

Prof. Dr. Hyosung Choi

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Guest Editor

Department of Chemistry and Research Institute for Natural Sciences, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Korea
Interests: organic solar cells; perovskite solar cells; hybrid optoelectronic devices; solar water splitting

Special Issue Information

Dear Colleagues,

Electrochemical energy conversion and storage (EECS) processes play a vital role in the conversion, storage, and utilization of sustainable energy from resources to the end users of various devices, such as solar cells, fuel cells, electrolyzers, batteries, and supercapacitors. The predominant mechanism of such devices involves the transfer of chemical energy into electrical energy, or vice versa, by means of redox reactions. EECS processes rely on various components and device aspects, for example, novel electrocatalysts, microstructure, electrode fabrication, electrolyte, system architecture, various supporting components, and long-durability of systems.

This Special Issue will bring together high-quality research articles and reviews on various EECS devices and the underlying kinetic processes. Topics include, but are not limited to:

Various rechargeable batteries, such as lithium-ion, sodium-ion, magnesium-ion, aluminum-ion, lithium–sulfur, metal–air, and redox flow batteries;
Supercapacitors, including pseudocapacitors, electric double layer capacitors, hybrid capacitors, supercapatteries, and flexible solid-state supercapacitors;
Different fuel cell technologies, such as proton exchange membrane fuel cells, alkaline fuel cells, solid oxide fuel cells, phosphoric acid fuel cells, molten carbonate fuel cells, solid oxide fuel cells, and microbial fuel cells
Electrolyzers—proton exchange membrane and alkaline anion exchange membrane electrolyzers;
Solar cells and solar fuels: dye-sensitized solar cells, quantum dot solar cells, organic solar cells, perovskite solar cells, photoelectrochemical water splitting, and CO₂ reduction;
Electrocatalysis and electrochemical kinetics: oxygen evolution reaction (OER), oxygen reduction reactions (ORR), hydrogen evolution reaction (HER), and hydrogen oxidation reaction (HOR);
Self-powered systems—integrated energy conversion and storage devices

Dr. Suresh Kannan Balasingam
Dr. Mohammed Hussain Abdul Jabbar
Dr. Sivaprakash Sengodan
Prof. Dr. Hyosung Choi
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 papers will be 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. Processes 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 2000 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
fuel cells
water splitting
solar fuels
solar cells

Published Papers (4 papers)

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Research

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8 pages, 1981 KiB

Open AccessArticle

Preparation of a Mulberry-like MnO Specimen and Its Lithium Property

by Yuan-Xiang Fu, Hong-Shen Huang, Wu-Jie Ge, Wei Qiu and Xian-Yinan Pei

Processes 2022, 10(6), 1110; https://doi.org/10.3390/pr10061110 - 02 Jun 2022

Cited by 2 | Viewed by 1279

Abstract

A mulberry-like MnO specimen was prepared using a MnCO₃ sample under nitrogen (N₂) protection at 700 °C (denoted as MnO-700). When the specimen was used in lithium-ion batteries (LIBs) as anode material, the reversible capacity of 702 mAh g⁻¹ was displayed after 120 cycles at a current density 200 mA g⁻¹, and 365 mAh g⁻¹ of discharge capacity was obtained at 1000 mA g⁻¹ at the 200th cycle. Meanwhile, the sample also exhibited an excellent rate capacity (224 mAh g⁻¹ at 2000 mA g⁻¹). The MnO-700 sample displayed a favorable electrochemical performance that may be ascribed to the unique mulberry-like structure of the MnO microparticles, which can provide enough space to satisfy the volume change of the MnO microparticles during lithium cycling, and also lead to more transfer paths for Li⁺ insertion/extraction during charge/discharge processes. Full article

(This article belongs to the Special Issue Electrochemical Energy Conversion and Storage Processes)

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15 pages, 4230 KiB

Open AccessArticle

Enhanced Performance of Microbial Fuel Cells with Anodes from Ethylenediamine and Phenylenediamine Modified Graphite Felt

by Egidijus Griškonis, Arminas Ilginis, Ilona Jonuškienė, Laurencas Raslavičius, Rolandas Jonynas and Kristina Kantminienė

Processes 2020, 8(8), 939; https://doi.org/10.3390/pr8080939 - 05 Aug 2020

Cited by 12 | Viewed by 2930

Abstract

A microbial fuel cell (MFC) is a promising renewable energy option, which enables the effective and sustainable harvesting of electrical power due to bacterial activity and, at the same time, can also treat wastewater and utilise organic wastes or renewable biomass. However, the practical implementation of MFCs is limited and, therefore, it is important to improve their performance before they can be scaled up. The surface modification of anode material is one way to improve MFC performance by enhancing bacterial cell adhesion, cell viability and extracellular electron transfer. The modification of graphite felt (GF), used as an anode in MFCs, by electrochemical oxidation followed by the treatment with ethylenediamine or p-phenylenediamine in one-step short duration reactions with the aim of introducing amino groups on the surface of GF led to the enhancement of the overall performance characteristics of MFCs. The MFC with the anode from GF modified with p-phenylenediamine provided approx. 32% higher voltage than the control MFC with a bare GF anode, when electric circuits of the investigated MFCs were loaded with resistors of 659 Ω. Its surface power density was higher by approx. 1.75 times than that of the control. Decreasing temperature down to 0 °C resulted in just an approx. 30% reduction in voltage generated by the MFC with the anode from GF modified with p-phenylenediamine. Full article

(This article belongs to the Special Issue Electrochemical Energy Conversion and Storage Processes)

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12 pages, 27588 KiB

Open AccessArticle

Cold Sintering as a Cost-Effective Process to Manufacture Porous Zinc Electrodes for Rechargeable Zinc-Air Batteries

by Kaushik Jayasayee, Simon Clark, Cara King, Paul Inge Dahl, Julian Richard Tolchard and Mari Juel

Processes 2020, 8(5), 592; https://doi.org/10.3390/pr8050592 - 15 May 2020

Cited by 13 | Viewed by 9264

Abstract

Zinc-air batteries (ZABs) offer a sustainable and safe pathway to low-cost energy storage. Recent research shows that thermally-sintered porous Zn electrodes with a three-dimensional network structure can enhance the performance and lifetime of ZABs, but they are expensive and energy-intensive to manufacture. In this work, monolithic porous Zn electrodes fabricated through an efficient cold sintering process (CSP) were studied for rechargeable ZABs. Electrochemical studies and extended charge-discharge cycling show good Zn utilization with no observable performance degradation when compared to Zn foil. Post-mortem analysis after 152 h of cycling reveals that the cold-sintered electrodes retain their original structure. A techno-economic assessment of the cold sintering process confirms significant reductions in both the time and energy required to manufacture Zn electrodes compared to a comparable thermal sintering process. Full article

(This article belongs to the Special Issue Electrochemical Energy Conversion and Storage Processes)

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Review

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26 pages, 9871 KiB

Open AccessReview

Recent Trends in Graphitic Carbon Nitride-Based Binary and Ternary Heterostructured Electrodes for Photoelectrochemical Water Splitting

by Ravindranadh Koutavarapu, Shaik Gouse Peera, Tae Gwan Lee, Chimpiri Rao Myla, Dong-Yeon Lee, Jaesool Shim and Suresh Kannan Balasingam

Processes 2021, 9(11), 1959; https://doi.org/10.3390/pr9111959 - 02 Nov 2021

Cited by 11 | Viewed by 3374

Abstract

The graphitic carbon nitride (g-C₃N₄) is a class of two-dimensional layered material. The ever-growing research on this fascinating material is due to its unique visible light absorption, surface, electrocatalytic, and other physicochemical properties that can be useful to different energy conversion and storage applications. Photoelectrochemical (PEC) water splitting reaction is one of the promising applications of g-C₃N₄, wherein it acts as a durable catalyst support material. Very recently, the construction of g-C₃N₄-based binary and ternary heterostructures exhibited superior PEC water splitting performance owing to its reduced reunion of e-/h+ pairs and the fast transfer of charge carriers at the heterostructure interface. This review compiles the recent advances and challenges on g-C₃N₄-based heterostructured photocatalysts for the PEC water splitting reaction. After an overview of the available literature, we presume that g-C₃N₄-based photocatalysts showed enhanced PEC water splitting performance. Therefore, it is believed that these materials have tremendous opportunities to act as durable catalyst support for energy-related applications. However, researchers also considered several limitations and challenges for using C₃N₄ as an efficient catalyst support material that must be addressed. This review article provides an overview of the fundamental principles of PEC water splitting, the current PEC water splitting research trends on g-C₃N₄-based binary and ternary heterostructured electrodes with respect to different electrolytes, and the other key factors influencing their photoelectrochemical performance. Finally, the future research direction with several recommendations to improve the photocatalytic efficiency of these materials is also provided at the end. Full article

(This article belongs to the Special Issue Electrochemical Energy Conversion and Storage Processes)

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