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Catalysts
Special Issues
Electrocatalysts for Energy Conversion and Storage-Related Reactions
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Electrocatalysts for Energy Conversion and Storage-Related Reactions

A special issue of Catalysts (ISSN 2073-4344). This special issue belongs to the section "Electrocatalysis".

Deadline for manuscript submissions: closed (15 August 2020) | Viewed by 9782

Special Issue Editors

Prof. Dr. Leela Arava

E-Mail Website
Guest Editor
Department of Mechanical Engineering, Wayne State University, 5050 Anthony Wayne Drive, Detroit, MI 48202, USA
Interests: nanocatalysts; proton exchange membrane fuel cell; hydrogen production; solid oxide fuel cell; direct methanol fuel cell; metal-air batteries
Special Issues, Collections and Topics in MDPI journals
Dr. Ganguli Babu

E-Mail Website
Guest Editor
Dept Mat Sci & Nanoengn, Rice Univ, Houston, TX 77005, USA
Interests: Dr. Babu's research interests are in the interdisciplinary field of materials science and electrochemistry, particularly in electrode and electrolyte materials for energy storage and conversion applications. Dr. Babu’s current research focuses on the development of supercapacitors and Li-ion batteries for wider temperature applications and understanding the reaction mechanism and electrocatalytic activity in Li-S batteries.

Special Issue Information

Dear Colleagues,

The design and development of catalysts for electrochemical reactions have attracted widespread attention because of their vital role in various energy storage and conversion devices, such as fuel cells, water splitting devices, and metal–air batteries. However, commonly employed noble metal catalysts are expensive, and instable due to the corrosion of carbon support and metal dissolution. In recent years, there has been significant emphasis and progress in developing efficient and robust bifunctional or trifunctional electrocatalysts. This Special Issue seeks contributions in advanced electrocatalysts, including synthesis, characterization, and the evaluation of activity and performance in oxygen reduction reactions (ORR), oxygen evolution reactions (OER) and hydrogen evolution reactions (HER).

Prof. Dr. Leela Arava
Dr. Ganguli Babu
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. Catalysts 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 2700 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

  • Oxygen reduction reactions (ORR)
  • oxygen evolution reactions (OER)
  • hydrogen evolution reactions (HER)
  • water splitting
  • fuel cells
  • Li-air and Li-sulfur batteries

Published Papers (2 papers)

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Review

28 pages, 13179 KiB  
Review
Metal-Based Electrocatalysts for High-Performance Lithium-Sulfur Batteries: A Review
by Kiran Mahankali, Sudhan Nagarajan, Naresh Kumar Thangavel, Sathish Rajendran, Munaiah Yeddala and Leela Mohana Reddy Arava
Catalysts 2020, 10(10), 1137; https://doi.org/10.3390/catal10101137 - 01 Oct 2020
Cited by 14 | Viewed by 3770
Abstract
The lithium-sulfur (Li-S) redox battery system is considered to be the most promising next-generation energy storage technology due to its high theoretical specific capacity (1673 mAh g−1), high energy density (2600 Wh kg−1), low cost, and the environmentally friendly [...] Read more.
The lithium-sulfur (Li-S) redox battery system is considered to be the most promising next-generation energy storage technology due to its high theoretical specific capacity (1673 mAh g−1), high energy density (2600 Wh kg−1), low cost, and the environmentally friendly nature of sulfur. Though this system is deemed to be the next-generation energy storage device for portable electronics and electric vehicles, its poor cycle life, low coulombic efficiency and low rate capability limit it from practical applications. These performance barriers were linked to several issues like polysulfide (LiPS) shuttle, inherent low conductivity of charge/discharge end products, and poor redox kinetics. Here, we review the recent developments made to alleviate these problems through an electrocatalysis approach, which is considered to be an effective strategy not only to trap the LiPS but also to accelerate their conversion reactions kinetics. Herein, the influence of different chemical interactions between the LiPS and the catalyst surfaces and their effect on the conversion of liquid LiPS to solid end products are reviewed. Finally, we also discussed the challenges and perspectives for designing cathode architectures to enable high sulfur loading along with the capability to rapidly convert the LiPS. Full article
(This article belongs to the Special Issue Electrocatalysts for Energy Conversion and Storage-Related Reactions)
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Graphical abstract

23 pages, 5341 KiB  
Review
Developing Low-Cost, High Performance, Robust and Sustainable Perovskite Electrocatalytic Materials in the Electrochemical Sensors and Energy Sectors: “An Overview”
by Tse-Wei Chen, Rasu Ramachandran, Shen-Ming Chen, Narayanasamy Kavitha, Kannaiyan Dinakaran, Ramanjam Kannan, Ganesan Anushya, Nagulan Bhuvana, Tharini Jeyapragasam, Vinitha Mariyappan, Selvarajan Divya Rani and Selvam Chitra
Catalysts 2020, 10(8), 938; https://doi.org/10.3390/catal10080938 - 16 Aug 2020
Cited by 28 | Viewed by 5568
Abstract
Since its discovery in 1839, research on the synthesis and application of perovskite materials has multiplied largely due to their suitability to be used in the fields of nanotechnology, chemistry and material science. Appropriate changes in composition or addition of other elements or [...] Read more.
Since its discovery in 1839, research on the synthesis and application of perovskite materials has multiplied largely due to their suitability to be used in the fields of nanotechnology, chemistry and material science. Appropriate changes in composition or addition of other elements or blending with polymers may result in new hybrid and/or composite perovskite materials that will be applied in advanced fields. In this review, we have recapitulated the recent progress on perovskite nanomaterial in solar cell, battery, fuel cell and supercapacitor applications, and the prominence properties of perovskite materials, such as excellent electronic, physical, chemical and optical properties. We discussed in detail the synthesis and results of various perovskite hybrid nanomaterials published elsewhere. We have also discussed the results of various studies on these low dimensional composite nanomaterials in broad sectors such as electronics/optoelectronics, batteries, supercapacitors, solar cells and electrochemical sensors. Full article
(This article belongs to the Special Issue Electrocatalysts for Energy Conversion and Storage-Related Reactions)
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