Electrode Materials Design for High-Performance Energy Conversion and Storage Devices

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

Deadline for manuscript submissions: 30 September 2025 | Viewed by 1355

Special Issue Editors


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Guest Editor
Department of Chemistry, University of Guelph, 50 Stone Road East, Guelph, ON N1G 2W1, Canada
Interests: water splitting; oxygen evolution reaction; hydrogen evolution reaction; sustainable energy

E-Mail Website
Guest Editor
Department of Chemistry, University of Guelph, Guelph, ON N1G 2W1, Canada
Interests: water splitting; oxygen evolution reaction; green energy
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The worldwide requirements for clean and sustainable energy make it crucial to develop infinite, highly productive, and environmentally friendly energy transformation frameworks. Hydrogen energy, as the main clean energy source in the world, has become an essential energy carrier in improving energy structures and promoting the energy revolution in the future, owing to its wide source, low pollution, and widespread applications. Hydrogen production from electrolytic water, as an efficient and clean hydrogen production technology, is a research hotspot in the field of energy and has become the most widely used hydrogen production technology.

This Special Issue on “Electrode Materials Design for High-Performance Energy Conversion and Storage Devices” aims to cover recent advances  in electrocatalysts for hydrogen generation. Topics include, but are not limited to, methods and/or applications in the following areas:

  • Water Splitting;
  • Hydrogen Evolution Reaction (HER);
  • Oxygen Evolution Reaction (OER);
  • Oxygen Reduction Reaction (OER);
  • Carbondioxide Reduction (CR);
  • Green Energy.

Dr. Shamim Ahmed Hira
Dr. Antony R. Thiruppathi
Guest Editors

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Keywords

  • hydrogen production
  • oxygen evolution reaction
  • green energy

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Published Papers (2 papers)

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Research

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14 pages, 4869 KiB  
Article
Development of High-Performance Supercapacitor Electrodes Based on CeO2/SiO2/CMK-3 Composites
by Chelliah Koventhan, An-Ya Lo, Chia-Chia Chang and Ming-Liao Tsai
Processes 2025, 13(6), 1766; https://doi.org/10.3390/pr13061766 - 3 Jun 2025
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Abstract
A novel composite material consisting of cerium dioxide (CeO2), silica (SiO2), and mesoporous carbon (CMK-3) was developed for supercapacitor electrodes. The composite’s synthesis involved a high-surface-area porous carbon combined with CeO2 and SiO2. The resulting material [...] Read more.
A novel composite material consisting of cerium dioxide (CeO2), silica (SiO2), and mesoporous carbon (CMK-3) was developed for supercapacitor electrodes. The composite’s synthesis involved a high-surface-area porous carbon combined with CeO2 and SiO2. The resulting material was characterized by a high specific capacitance due to its mesoporous structure and enhanced dispersion CeO2 and SiO2. The effects of different types of CeO2 and SiO2 are also discussed. Both CeO2 and SiO2 components offer advantages such as abundance, low costs, and excellent catalytic properties. The composite’s structure improves CeO2 nanofiber (CeO2 NF) dispersion and reduces impedance through rapid redox reactions. The influence of the CeO2/SiO2/CMK-3 ratio on specific capacitance was investigated. The optimized composite electrode demonstrated a significantly improved specific capacitance, 2.6 times higher than that of the pristine mesoporous carbon electrode. This work highlights the potential of CeO2/SiO2/CMK-3 composites for energy storage applications and underscores the importance of optimizing component ratios and morphology for improved supercapacitor performance. Full article
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Review

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30 pages, 3681 KiB  
Review
Recent Trends in the Use of Electrode Materials for Microbial Fuel Cells Accentuating the Potential of Photosynthetic Cyanobacteria and Microalgae: A Review
by Ponnusamy Ramesh, Rishika Gupta, Chelliah Koventhan, Gangatharan Muralitharan, An-Ya Lo, Yi-Jen Huang and Saravanan Ramasamy
Processes 2025, 13(5), 1348; https://doi.org/10.3390/pr13051348 - 28 Apr 2025
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Abstract
As of 2024, approximately 81.5% of global energy consumption is still derived from non-renewable fossil fuels, such as coal, oil, and natural gas. This highlights the urgent need to transition to alternative energy sources amid the escalating climate crisis. Cyanobacteria and microalgae have [...] Read more.
As of 2024, approximately 81.5% of global energy consumption is still derived from non-renewable fossil fuels, such as coal, oil, and natural gas. This highlights the urgent need to transition to alternative energy sources amid the escalating climate crisis. Cyanobacteria and microalgae have emerged as promising biocatalysts in microbial fuel cells (MFCs) for eco-friendly energy production, owing to their photosynthetic abilities and resilience in regard to various environmental conditions. This review explores the potential of cyanobacteria and microalgae to drive bioelectricity generation via metabolic and extracellular electron transfer processes, leveraging their ability to fix carbon and nitrogen, while thriving in challenging environments. Bioengineering and electrode design advances are integrated to enhance the electron transfer efficacy and constancy of cyanobacteria-based MFCs. This approach addresses the growing demand for carbon-neutral energy and can be applied to wastewater treatment and bioremediation scenarios. By synergizing biological innovation with sustainable engineering techniques, this review establishes cyanobacteria and microalgal-driven MFCs as a scalable and eco-friendly platform for next-generation energy systems. The findings lay the groundwork for further exploration of the role of cyanobacteria and microalgae in bridging the gap between renewable energy production and environmental stewardship. Full article
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